Reasons Your Burner Won’t Stay Lit . The Furnace is Turned Off; ... Like any electrical component, the igniter for a furnace can break. This is probably the most common malfunction in gas furnaces. It could be an electrical failure, such as with the control board or bad wiring, or the igniter may have cracked. Do not try to tamper with the ...Before you leave on any winter trip, always check the vehicle’s furnace. Reasons Your Furnace Won’t Ignite. There are a few reasons why your furnace won’t ignite. Some are simple fixes and others may require help from a professional. 1) Problems with the Propane Tank. Propane tanks are a common fuel source for RV furnaces. Check the battery output using multimeter to verify this scenario. RV furnace operates with a 10.5 V supply and at times if the battery is not able provide above 10.5V then the furnace wont ignite. A good way to test this out is to run the blower, (blower is apt to operate fine under 10.5 V) if the blower runs then that means the battery supply ... 7. The Limit Switch Is Damaged. Lennox Furnace not igniting can be due to lack of power, a clogged filter, blocked vent, damaged motor or thermostat, or pilot light being out. Quick fixes to these issues include inspecting and repairing the fuse, cleaning the filter and vent, replacing damaged parts, and igniting the pilot light. If your gas furnace wont ignite and you have a few cold days ahead before it gets fixed, here is how to light it manually to get by until the furnace gets re... An ignition coil is a coil in a car’s ignition system that carries the 6 or 12 volts from the battery to the many volts used to spark the spark plugs in the ignition. An ignition c...Your York Furnace isn’t igniting or lighting because of a dirty flame sensor, stuck gas valve, faulty ignitor, or bad control module. You can fix the problem by cleaning the flame sensor, opening the gas valve, and …Feb 24, 2022 · Turn on the Power Switch. Whether the trailer furnace runs on electricity or propane, it will have a power switch. The switch must be turned on for the furnace to run, and this should also be in the checklist if the RV furnace won’t ignite. Campers also need to check the breaker. Turn it on if the furnace power is off for any reason. We will troubleshoot a furnace igniter on this Goodman furnace. This is a Diy video so we will not use any multi meter or voltage measuring device.Amazon lin...The cost of running an electric furnace varies depending on size of home, the type of furnace, cost of electricity and weather conditions. Generally, an electric furnace runs from ...Sep 16, 2021 ... Well, that's frustrating. It's cold outside and your furnace won't ignite? Dan let's you know what you should do in that scenario.01 - Igniter. The igniter gets very hot and glows bright orange to light the gas burner. If the igniter fails or cracks, the furnace won’t heat. To determine if the igniter is faulty, remove the igniter and inspect it for cracks. If the igniter is cracked, replace it. If the igniter is not cracked, use a multimeter to test the igniter for ...A furnace that tries to start and then shuts down suffers from what is known as short-cycling. Several problems can cause a furnace to short-cycle, such as a restricted air-flow. Faulty sensors can also cause short-cycling, as can an improperly sized heater. These are the most common problems causing short-cycling.The internal furnace switch wont let the furnace ignite resulting in less heat. So, you will have the fan running but thee wont be any heat or less heat. 10. RV furnace clicks but won’t start. The furnace may make a click sound but it wont start. This happens when the spark igniter try’s to ignite the pilot light but fails.The first thing to check when the burners won’t light is if the gas to the furnace is turned on. If this is the first time you’ve used your furnace during the season, the gas may still be shut off to the unit. There may be a …Feb 18, 2021 · Flame Sensor – The flame sensor monitors the burner to detect whether or not a flame is present. A malfunctioning flame sensor may fail to detect the ignited flame, causing the control board to shut off voltage to the gas valve and prevent the furnace from heating. Since the flame sensor will collect carbon build-up after years of use, you ... There are many things that could cause the furnace to fail to light, each of which requires its own diagnostics to determine if it is the problem. ... Goodman GMH95 furnace won't ignite. 2. Furnace runs for about 5-minutes only and shuts off. 2. Tempstar (ICP) furnace short cycle (runs 10 -15 minutes) then repeats. 0. furnace not always …The igniter gets very hot and glows bright orange to light the gas burner. If the igniter fails or cracks, the furnace won’t heat. To determine if the igniter is faulty, remove the igniter and inspect it for cracks. If the igniter is cracked, replace it. If the igniter is not cracked, use a multimeter to test the igniter for continuity.The Furnace Won't Start. If your furnace just stopped working, it could indicate an issue with the thermostat. Sometimes, either the thermostat has been switched off accidentally, or the thermostat has completely gone out. ... If the igniter fails, it will also cause the furnace not to produce heat. A dirty or faulty pressure switch, which ...Dec 11, 2020 ... Why Wont My Furnace Ignite? · Thermostat: Some thermostats that have weak batteries or are just up there in their years can have a problem with ...Oct 21, 2019 ... An electronic gas furnace ignition failure occurs when the electronic ignition fails and therefore does not ignite the burners. When this ...Posts: 20. Suburban SF-42Q: fan starts but won't even try to ignite. 2021 Winnebago 36Z, Suburban SF-42Q furnace. Furnace was working fine until this trip. Turn on thermostat, set temp higher than room temp, fan starts and runs for a minute then shuts off. Had someone outside by furnace exhaust, can't hear any clicking so it's not even trying ...Dec 13, 2020 · If interested in purchasing this part, visit our Amazon affiliate link below. https://amzn.to/3r6RYqC😎👍🔧🔩Check out our DIY Raptor Club store ... If the furnace was just running, but now it won’t turn back on, a clogged filter may have caused it to overheat. Check the filter, replace it if it appears dirty, and try running the furnace again in a few minutes. 6. The Gas Supply Is Shut Off. Gas furnaces need a steady flow of fuel to ignite. Check the gas shut-off valve and make sure it ...12 posts · Joined 2012. #1 · Oct 24, 2012. I have trane furnace model tde060a936c0 and it doesn't ignite. When I turn my thermostat to heat I hear a clicking noise on it, then I go to the furnace and I hear the blower motor turn after a few seconds I see the hot surface ignitor glow red hot after a few more seconds I hear a few clicks and get ...In this video we will show you how to solve a ignition failure problem on mobile home furnces.Turn off the gas valve, shut off the furnace, and call a professional. Blocked burners are often the result of dirt buildup due to poor maintenance. To fix the problem, shut down the furnace, turn off the gas supply, and take off the burner heads. Then soak the burner in soapy water for 30 minutes.The furnace should not be allowing that much un-burned gas to release. Quote: I've tried resettng it with the limit switch. The furnace follows an exact and logical flow. 1) thermostat calls for heat. 2) draft inducer starts. 3) pressure switch proves and igniter starts heating. 4) in approx 30 seconds the main gas valve opens. 5) flame sensor ...The igniter gets very hot and glows bright orange to light the gas burner. If the igniter fails or cracks, the furnace won’t heat. To determine if the igniter is faulty, remove the igniter and inspect it for cracks. If the igniter is cracked, replace it. If the igniter is not cracked, use a multimeter to test the igniter for continuity.how to diagnose a furnace that runs for 30 seconds and shuts off. Backdrop of the Nehalem River.For any questions about what Hart Home Comfort can do for you, give us a call today. Click here to contact us now or call us at (631) 667-3200 to find out more! If Your Gas Furnace Ignitor Is Not Working, Call Hart Home Comfort Today. Our Furnace Repair Services Are Fast, Friendly, & Affordable. Call Us Now!Dirty Furnace Filters: One of the most common reasons a furnace won't ignite is that the filters are dirty. Over time, dust and other particles can build up on ...A common reason is age. After many years of use, the glow pug can “flame out” or lose the ability to glow. Alternatively, the plug can malfunction due to short …Are you in the market for a new furnace? If so, you’ve probably come across the name Heil. With a reputation for quality and reliability, Heil furnaces are a popular choice among h... Fixes For the RV Furnace Blower Come on But Won’t Ignite. It is a common problem that RV furnace won’t ignite but the blower would work fine. You will find the most like causes and their fixes in this section. 1. Lack of Fuel. Your fuel source is the most common cause of a furnace that isn’t producing heat. A furnace that tries to start and then shuts down suffers from what is known as short-cycling. Several problems can cause a furnace to short-cycle, such as a restricted air-flow. Faulty sensors can also cause short-cycling, as can an improperly sized heater. These are the most common problems causing short-cycling.5. Broken Flame Sensor. If your furnace won’t ignite, the source of the issue may be a broken flame sensor. The sensor is responsible for turning off the gas …Faulty Pilot Light: The Most Common Reason a Furnace Won’t Stay Lit. A common reason for furnace ignition problems is a faulty pilot light. The pilot light is a small flame that ignites the gas in your furnace. If it goes out or doesn’t stay lit, your furnace won’t ignite. This could be due to a variety of factors, each impacting the ...The ignition system is a vital part of your furnace as, without it, the system won’t provide warm air. When the thermostat clicks to turn the furnace on, the ignitor produces a spark that lights the gas flowing to your heater. ... So, if your Bryant furnace won’t ignite, check your air filter; it probably needs changing. It’s crucial to ...For any questions about what Hart Home Comfort can do for you, give us a call today. Click here to contact us now or call us at (631) 667-3200 to find out more! If Your Gas Furnace Ignitor Is Not Working, Call Hart Home Comfort Today. Our Furnace Repair Services Are Fast, Friendly, & Affordable. Call Us Now!All My Favorite Tools: https://www.amazon.com/shop/everydayhomerepairs In this video, I will run you through the 6-step startup process for a furnace and the...Push the gas valve in and hold it until the pilot light has lit. 4: Wait a few seconds and let the gas burn before turning the valve to the ‘on’ position. That is all there is to it. For your specific Atwood gas furnace, check with your owner’s manual to see specific instructions for the model you own.Below are some of the most common reasons why furnaces won’t light. 1. The furnace door isn’t shut correctly. Believe it or not, your furnace’s door might be the issue. In some models, the equipment won’t run unless the door is shut all the way until it clicks or snaps. 2. The heat isn’t actually “on.”. Make sure that your ...In such a case, your Lennox furnace won’t ignite. The main thing that can restrict the airflow is a dirty air filter. Replace the filter and see if this helps. Read: Why Does My Furnace Filter Get Dirty So Quickly. Ignition Source. Pilot light; Some units still have a pilot light. This little flame should be constantly burning inside the furnace.The ignition system is a vital part of your furnace as, without it, the system won’t provide warm air. When the thermostat clicks to turn the furnace on, the ignitor produces a spark that lights the gas flowing to your heater. ... So, if your Bryant furnace won’t ignite, check your air filter; it probably needs changing. It’s crucial to ...Nov 6, 2017 ... In this HVAC Gas Furnace Troubleshooting Video, I go over the Sequence of Operation up to when the Gas Valve is supposed to allow Gas ...The Three Most Common Reasons Why an RV Furnace Won’t Work. When an RV furnace is broken, it’s usually caused by one of two common scenarios. Let’s look at each. ... Test your RV Propane Furnace Igniter. Suburban 525009 (232286) OEM RV Suburban Furnace Igniter Electrode Assembly.Oct 26, 2020 ... Comments170 ; Gas furnace not igniting - Goodman furnace wont ignite - DIY Gas furnace repair. Shane K · 336K views ; EASY: Furnace or Heater Is ...Are you in the market for a new furnace? If so, you’ve probably come across the name Heil. With a reputation for quality and reliability, Heil furnaces are a popular choice among h...The sail switch, located near the RV furnace’s burner, is often responsible for why your suburban RV furnace won’t ignite. This part acts as a safety measure and will shut off the gas supply if it senses unsafe levels of oxygen in the area. To reset this device, you may need to consult your owner’s manual or contact a qualified RV repair ...01 - Igniter. The igniter gets very hot and glows bright orange to light the gas burner. If the igniter fails or cracks, the furnace won’t heat. To determine if the igniter is faulty, remove the igniter and inspect it for cracks. If the igniter is cracked, replace it. If the igniter is not cracked, use a multimeter to test the igniter for ...Shortly after, the furnace will begin to sound as if it will soon begin its job of distributing hot air throughout the home. Sometimes during this process a pressure switch may become stuck, thus stopping the furnace from going further. The furnace will act as if it stopped, only to begin the process all over again in a few minutes.If the furnace was just running, but now it won’t turn back on, a clogged filter may have caused it to overheat. Check the filter, replace it if it appears dirty, and try running the furnace again in a few minutes. 6. The Gas Supply Is Shut Off. Gas furnaces need a steady flow of fuel to ignite. Check the gas shut-off valve and make sure it ...7. The Limit Switch Is Damaged. Lennox Furnace not igniting can be due to lack of power, a clogged filter, blocked vent, damaged motor or thermostat, or pilot light being out. Quick fixes to these issues include inspecting and repairing the fuse, cleaning the filter and vent, replacing damaged parts, and igniting the pilot light.Oct 11, 2016 ... Check to be sure that the electric gas valve is turned to the on position and that the furnace gas shutoff valve is turned on. After that, use a ...The igniter gets very hot and glows bright orange to light the gas burner. If the igniter fails or cracks, the furnace won’t heat. To determine if the igniter is faulty, remove the igniter and inspect it for cracks. If the igniter is cracked, replace it. If the igniter is not cracked, use a multimeter to test the igniter for continuity.An ignition coil is actually two coils of wire wrapped around an iron core. The primary coil is made of heavy wire and is connected to two terminals on the top of the coil. The sec...All My Favorite Tools: https://www.amazon.com/shop/everydayhomerepairs In this video, I will run you through the 6-step startup process for a furnace and the...4. Testing the Igniter. Confirm if the furnace’s igniter is cracked or faulty. However, some older furnace models have a pilot light instead of an igniter. The pilot light/igniter ignites the gas coming from the burners. Solution. You should replace the igniter. Clean around the pilot light. If still not working, give the repair job to an ...May 21, 2022 · The chances are high that your furnace is making a clicking sound because the spark ignitor is trying to ignite the pilot light or burners. A faulty ignitor or pilot light might be the root cause of the problem. The elements could also simply be dirty. Problems with the gas line (a blocked gas line, a faulty gas valve, gas leaks, etc.) Keep reading to learn about the top 6 reasons why furnaces won’t ignite and how to fix these problems. ... locate the gas pressure gauge. You want the gas pressure gauge to read 25 or higher, because your furnace may not ignite if the gas pressure is lower than that. If it is lower than 25, call your gas company to have them come fill up the ...Check the filter for blockages and replace it if necessary. 5. Malfunctioning Pilot Light. The pilot light is responsible for lighting the furnace’s burners in older gas water heaters. If the pilot light goes out, the furnace won’t …When an electronic ignition system fails in a gas furnace, the burners do not ignite. This issue causes the failure of the furnace to produce heat. Delayed ...Janitrol furnace won't ignite. Has a new flame sensor. Igniter glows when trying to ignite but nothing happens except blower motor runs for 3--4 minutes and shuts off. Tried to reset by turning switch off for 20 seconds then back on...still nothing. Furnace filter new.....furnace is clean. Thought it would take one hour to reset if locked out ...Feb 24, 2022 · Turn on the Power Switch. Whether the trailer furnace runs on electricity or propane, it will have a power switch. The switch must be turned on for the furnace to run, and this should also be in the checklist if the RV furnace won’t ignite. Campers also need to check the breaker. Turn it on if the furnace power is off for any reason. Now your furnace should try to restart, so watch and listen. As the furnace begins to do its thing, you'll hear the furnace fan come on. Then, perhaps—if you have …Jan 10, 2022 · Turn off the gas valve, shut off the furnace, and call a professional. Blocked burners are often the result of dirt buildup due to poor maintenance. To fix the problem, shut down the furnace, turn off the gas supply, and take off the burner heads. Then soak the burner in soapy water for 30 minutes. Blower motor starts, burner does not light, flame safeguard locks out (alarm light on) 4. Burner runs, then stops and re-cycles. 5. Burner runs, then stops and flame safeguard locks out (alarm light on) 6. Burner runs, then stops and locks out during postpurge (RM7840L) (alarm light on) 7. Burner runs at low fire rate but air damper will not go ...Your furnace unit might have a reset button attached to it. Locate this button and press and hold for several seconds, then release. Alternatively, there might be a switch located on the wall near ...The Furnace Won't Start. If your furnace just stopped working, it could indicate an issue with the thermostat. Sometimes, either the thermostat has been switched off accidentally, or the thermostat has completely gone out. ... If the igniter fails, it will also cause the furnace not to produce heat. A dirty or faulty pressure switch, which ...A common reason is age. After many years of use, the glow pug can “flame out” or lose the ability to glow. Alternatively, the plug can malfunction due to short …The igniter is responsible for starting the combustion process in your furnace. Problems with the igniter can prevent ignition. Broken Igniter. A broken igniter won’t produce the necessary spark to ignite the gas. Replacing the igniter may be necessary. 6- Flame Sensor Problems. The flame sensor ensures safety by detecting the presence of a ...Step 4: Disconnect your furnace ignitor from your furnace. This step simply involves disconnecting the wiring that runs from your furnace to the furnace ignitor. For hot furnace ignitors, there are typically two wires attached to a connector. to Be sure the power to the furnace is off before tampering with any wiring.5 Reasons Your Gas Furnace Won’t Ignite. A circuit breaker has tripped: If the blower motor in the furnace causes a power overload that trips the circuit breaker, not only will … WHY FURNACES FAIL TO IGNITE. Below are some of the most common reasons why furnaces won’t light. 1. The furnace door isn’t shut correctly. Believe it or not, your furnace’s door might be the issue. In some models, the equipment won’t run unless the door is shut all the way until it clicks or snaps. 2. The heat isn’t actually “on.” Check the battery output using multimeter to verify this scenario. RV furnace operates with a 10.5 V supply and at times if the battery is not able provide above 10.5V then the furnace wont ignite. A good way to test this out is to run the blower, (blower is apt to operate fine under 10.5 V) if the blower runs then that means the battery supply ... RV Furnace Won’t Light: Causes and Solutions Lack of Propane. One of the most common reasons why an RV furnace fails to light is a lack of propane. Without an adequate supply of propane, the furnace simply cannot ignite. So, the first step in troubleshooting is to ensure that your propane tank is not empty.Dec 11, 2018 ... If you are experiencing a problem where not all the furnace burners are igniting or lighting, I got an easy fix you can try that will likely ...Issues with the gas supply. One of the most common reasons a Goodman furnace won’t ignite is issues with the gas supply. Gas is the fuel that powers the furnace, so if there’s an issue with the gas supply, the furnace won’t be able to ignite. Check the gas valve to ensure it’s in the “ON” position. If not, turn it on and try to ...Goodman furnaces are known for their reliability and efficiency, but just like any other appliance, they can sometimes experience issues. One common problem that homeowners may enc...New furnaces tend to have more energy efficient electronic ignition components. If your furnace won't start up, or isn't blowing warm air, you can attempt to re ...Sep 15, 2022 · All My Favorite Tools: https://www.amazon.com/shop/everydayhomerepairs In this video, I will run you through the 6-step startup process for a furnace and the... Sep 19, 2020 ... The Most Common Reason Why A Gas Furnace Won't Turn On ... Gas furnace not igniting - Goodman furnace wont ignite - DIY Gas furnace repair.Jan 27, 2021 · Do you have an RV furnace that is blowing cold air, won't ignite, won't turn on, or won't stay lit? Trust us, we've been there. This is a step-by-step troubl... Keep reading to learn about the top 6 reasons why furnaces won’t ignite and how to fix these problems. ... locate the gas pressure gauge. You want the gas pressure gauge to read 25 or higher, because your furnace may not ignite if the gas pressure is lower than that. If it is lower than 25, call your gas company to have them come fill up the ...Multiple reasons are responsible for your furnace burner not igniting when the pilot light is lit. Below we include several reasons behind this issue and offer solutions to them. 1. Defective Gas Control Valve. If the gas control valve is faulty, your burner won’t ignite. Due to the defective gas control valve, the main burner won’t light ...Incomplete Combustion. If your RV’s furnace isn’t working properly, carefully check the exhaust vent for soot. The presence of soot indicates incomplete combustion. When the exhaust vents aren’t hot, use a finger to check for soot at the exhaust ports. Soot build-up is a sign of incomplete combustion.Examine the circuit breakers. When your furnace doesn’t ignite, you should start by checking if there’s the power inside the house. Check several electronic outputs (the microwave or the fridge). Should they have the ability, then it’s only the furnace that isn’t running. Always start with the easy fixes such as the power to the furnace.Oct 26, 2020 ... Comments170 ; Gas furnace not igniting - Goodman furnace wont ignite - DIY Gas furnace repair. Shane K · 336K views ; EASY: Furnace or Heater Is ...Mar 19, 2023 · If your suburban RV furnace still won’t ignite, it could be an electrical problem. If this is the case, you may need to contact a qualified RV repair technician who can run tests and diagnose the issue. A Damaged Wire Cause A Furnace Not To Ignite. Finally, check for any damaged wires that may be preventing your furnace from igniting.
Cleaning the flame sensor or replacing it altogether will fix this issue. 6. The inducer motor is bad. Despite its reasonably simple construction, the fan inducer motor has the highest failure rates of any part of the furnace. One of the signs of a malfunctioned inducer motor is running without heat from the furnace.. Good certifications to have
6 Check the pilot light. With a gas furnace, the pilot light may have gone out or the gas valve may be shut off. Check the furnace’s ignition. 7 Test the thermostat. If the furnace still doesn’t work, be sure the thermostat isn’t faulty. See How to Test a Thermostat.Furnace not heating or igniting? This video provides step-by-step instructions for replacing the spark igniter on Rheem furnaces. The most common reason for ...May 28, 2022 · Lennox Furnace Igniter Glows but No Flame. All the reasons mentioned above might cause no flame in your Lennox furnace. Don’t forget to make sure that the unit is receiving proper airflow. If the filters are clogged, for example, the furnace won’t be able to create the right gas-air mixture necessary for the unit’s operation. Goodman ... Check the battery output using multimeter to verify this scenario. RV furnace operates with a 10.5 V supply and at times if the battery is not able provide above 10.5V then the furnace wont ignite. A good way to test this out is to run the blower, (blower is apt to operate fine under 10.5 V) if the blower runs then that means the battery supply ...The igniter is responsible for starting the combustion process in your furnace. Problems with the igniter can prevent ignition. Broken Igniter. A broken igniter won’t produce the necessary spark to ignite the gas. Replacing the igniter may be necessary. 6- Flame Sensor Problems. The flame sensor ensures safety by detecting the presence of a ...Check the battery output using multimeter to verify this scenario. RV furnace operates with a 10.5 V supply and at times if the battery is not able provide above 10.5V then the furnace wont ignite. A good way to test this out is to run the blower, (blower is apt to operate fine under 10.5 V) if the blower runs then that means the battery supply ...RV Furnace Blower Comes on but Won’t Ignite. Another common issue is when the blower begins to blow, but the furnace still isn’t igniting. Normally, this is an electrical issue. If it happens to be low …Now that you have checked all 6 troubleshooting steps to determine why your furnace won’t kick on, it may be time to contact your trusted Billings home heating repair pros. For furnace repair in Billings, and surrounding areas, depend on R & T Services for fast, affordable help when your furnace won’t turn on. Call us at 406-655-9700 today!Nov 29, 2023 · 4. Sail Switch. The RV sail switch is a simple switch, like a light switch, that, once engaged, sends a signal to the propane valve to open. If the switch doesn’t engage, it won’t send that signal; therefore, your furnace can’t ignite. Next, the RV furnace blower fan engages the sail switch. Make sure that it’s set to “Heat” or “Furnace.”. Next—remember that the thermostat operates from the 12-volt DC coach battery—ensure that your battery is fully charged and then check the 12-volt fuse panel to make sure the furnace fuse isn’t blown. There could be a few other issues that cause the furnace to not kick on that need ...Over time, your Dodge Grand Caravan ignition switch may wear out due to dirt and debris getting lodged in the switch. This can cause the cylinders to wear down and not function pro...Dec 13, 2020 ... Comments21 · Furnace Not Igniting - How to Check and Replace Ignitor · HVAC Training: 8 Reasons Why Hot Surface Ignitors Fail · Gas furnace no...Oct 21, 2019 ... An electronic gas furnace ignition failure occurs when the electronic ignition fails and therefore does not ignite the burners. When this ...Nov 9, 2022 · All My Favorite Tools: https://www.amazon.com/shop/everydayhomerepairs Dave from The DIY HVAC GUY YouTube channel will walk us through how to properly light ... Gas Line Issue. One of the most common reasons a furnace won’t turn on is that your gas line is blocked or clogged. The pipe that the furnace draws its fuel from may be clogged or too small for the furnace. If this gas valve or gas supply is blocked in any way, your furnace will not be able to receive enough natural gas to start properly and ...Reset the house circuit breaker for the furnace. If power is okay, replace the electronic control board (with electrical power disconnected to the furnace). 1 flash. Furnace attempted unsuccessfully to ignite the burner and start the blower too many times. This code will reset after one hour and the furnace will attempt to start again..