Why is my Atwood 8531 furnace not igniting?

It turned out to be in the gas valve not getting the proper pressure to the heater. Lifted the little cap off the gas valve and inside turned the inserted screw very gently till it stopped. Do not tighten. The furnace has worked perfectly ever since. I found that my atwood 8531 furnace would not ignite unless I pounded on the side of the furnace.

Why does the Atwood hydro flame furnace not light?

After that, the burner ignites and heat would steadily accumulate in the furnace combustion chamber. The air stream that circulates through the outlets would be warmed by the heat until the set temperature is reached.

What do you need to know about Atwood furnaces?

Atwood furnaces are designed primarily for use in recreational vehicles such as motor homes and travel trailers; they heat the vehicles. Atwood furnaces offer two-stage heating, digital thermostats and self-diagnostics. They come in a variety of sizes for different recreational vehicle needs.

What kind of warranty does Atwood furnace have?

Atwood furnaces offer two-stage heating, digital thermostats and self-diagnostics. They come in a variety of sizes for different recreational vehicle needs. While most Atwood furnaces come with limited warranties and should operate normally with regular care and maintenance, owners may experience issues occasionally.

What to do if your Atwood furnace is low on heat?

Turn off and unplug the furnace if the heat seems low or inaccurate. Open the main panel on the furnace and take out the filter. Clean the filter with dish-washing liquid and soap, and rinse thoroughly. Set the filter aside to dry, and reinstall it before starting the furnace back up. Contact Atwood with any additional questions or problems.

When did the Atwood furnace service manual come out?

The 2004 edition of the Atwood Furnace Service Manual is a resource created to help service technicians identify Atwood product by serial number, diagnose service problems and efficiently and effectively process warranty claims. Changes to the Hydro Flame furnaces include:

What’s the new model of Atwood Excalibur furnace?

Features new blower assembly with increased airflow. Compact size installs both horizontally and vertically for better space utilization. All controls and crucial components are accessible from outside your RV for easy servicing. Access door sold separately. 1/box. ***This product is being replaced with Atwood’s new 35443. Model DFMD30111.

What are the instructions for the Atwood hydroflame furnace?

Atwood HydroFlame Furnace Universal DC Ignition Control Kit Instructions 8531-iv Doc 38677

What to do if your propane furnace 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 power, I merely replace the battery with a one that has the right voltage. This usually solves the problem. I’ve heard people have this problem plenty of times in the past.

Where is the sail switch on an Atwood furnace?

The furnace is rated to be safe and not ignite if the blower doesn’t produce enough air flow (70%). The sail switch is located on the underside of the blower motor (squirrel cage) housing. The switch is held in by two screws.

Why does my Atwood flame furnace not light?

Needless to say, no gas would reach the burner if the valve fails to open. Take a look at the valve and assess its quality. In most of the case, you should be able to replace the gas valve at moment notice without much difficulty. 4. Flawed Igniter After you activate the furnace, the igniter would generate sparks and ignite the propane gas.

Why does my Atwood stove not ignite propane?

If you don’t smell propane you have a gas supply problem or your gas valve is not opening. Test the gas by lighting a burner on your stove top and turn on the furnace when it tries to ignite the flame on the stove should remain the same, if it gets smaller you do not have enough gas pressure.

What does it mean when your furnace won’t ignite?

When this happens it is most likely the sail switch. The sail switch tells the unit that there is plenty of air flow and it is safe to continue firing the furnace up. The furnace is rated to be safe and not ignite if the blower doesn’t produce enough air flow (70%).

How many Atwood 8531 DCLP’s are there?

Only 3 left in stock – order soon. . Only 8 left in stock (more on the way). . Only 1 left in stock – order soon. . Only 20 left in stock – order soon. . Only 7 left in stock – order soon.

Which is the new Atwood furnace access door?

Access door sold separately. 1/box. ***This product is being replaced with Atwood’s new 35443. Model DFMD30111. WARNING: This product may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm.

What to do when your furnace won’t ignite?

Test the gas by lighting a burner on your stove top and turn on the furnace when it tries to ignite the flame on the stove should remain the same, if it gets smaller you do not have enough gas pressure.

What does the sail switch on an Atwood furnace look like?

Sail Switch, can’t describe where it is or what it look like, but that is the symptoms of it going bad. If the sail switch was bad, it would never allow the burner to ignite. The following is from the Atwood manual, and this is assuming the blower never turns off, and the burner is igniting, then shuts off, then ignites again, over and over again:

What’s the flame on an Atwood fifth wheel?

Atwood Hydro Flame 8940 in a fifth wheel. Turns on OK, fan starts, gas ignition occurs. Stays lite for about 5 seconds and then goes out, lites again in about 10 seconds. Continues this cycle until turn the stat down. Does not provide enough heat to maintain temp.

Why does my Atwood furnace keep getting a spark?

It might also be very low propane pressure or if actually 10 seconds, it may not be sensing the heat from the burning propane. In most furnaces, the spark will repeat about 3 to 5 times and then the control goes into lock-out and must be turned off and back on to start over.

What causes a furnace to turn off in an RV?

Check for the furnace box, see if there is anything that is blocking the furnace vents. Any obstruction in the vents will result in malfunctioning and heating of the furnace. This will lead the temperature limiting switch to turn off the furnace. Vents can blocked due to various things, debris dust can also block it.

What should I do if my Atwood furnace is not working?

Open the main panel on the furnace and take out the filter. Clean the filter with dish-washing liquid and soap, and rinse thoroughly. Set the filter aside to dry, and reinstall it before starting the furnace back up. Contact Atwood with any additional questions or problems.

Why does my Atwood hot water heater not ignite?

The atwood hot water heater burner will ignite when you flip the switch to on position and water gets hot. After that the burner will not ignite any more on its own until you flip the switch again. RV Make: Keystone Sprinter, RV Model: KBS300, RV Year: 2010, Brand: Keystone Sprinter, Model Number: KBS300

What does it mean when your furnace is not igniting?

The oldest way is by a pilot light and over the last 30 years or so these have been replaced by electronic ignition systems. If these fail to do their job your furnace will not come on. This is a small flame which is constantly burning inside your furnace. It’s so small it does not consume much gas.

What does ignition lockout fault mean ref : Atwood furnace model?

Second opinion] Hi Steve, I’m GuyAtwood AFM D35131 furnace give Ignition Lockout Fault. Electrode was adjusted 3/8″ above the burner screen and the ground probe 1/8″ from the electrode. The furnace ig…

What to do if your Atwood furnace won’t ignite?

Lifted the little cap off the gas valve and inside turned the inserted screw very gently till it stopped. Do not tighten. The furnace has worked perfectly ever since. I found that my atwood 8531 furnace would not ignite unless I pounded on the side of the furnace.

Is the Atwood 7920-ii PDX RV dual sense?

*NEITHER OF THESE KITS ARE APPLICABLE TO A 7920, ONLY TO A 7920-II* Single Sense Electrode 37517 (One Wire Goes To Electrode) Dual Sense Electrode 36998 (Two Wires Go To Electrode, When Substituting For Electrode 37517 Only One Gets Connected)

Is the Atwood mobile furnace a Category III furnace?

FURNACE. : LEAVE THIS MANUAL WITH THE APPLIANCE. CONSUMER: RETAIN THIS MANUAL FOR FUTURE REFERENCE. recreation vehicles as a MSP Category III furnace.

Atwood HydroFlame Furnace Universal DC Ignition Control Kit Instructions 8531-iv Doc 38677

When does Atwood 8531 go out of stock?

In stock on April 30, 2021. . . . Only 14 left in stock – order soon. . Only 9 left in stock – order soon. . Only 10 left in stock – order soon. . Only 3 left in stock – order soon.

What should voltage be for propane blower to ignite?

The blower and propane solenoids are working fine and I’m getting a 63-65 volt reading on the igniter wire using a digital voltmeter (with the igniter wire connected at both ends). Is that enough voltage to fire the igniter?

What kind of igniter board do I need for Atwood furnace?

* Please Note: You may add the OEM igniter board 31501 or after-market igniter board DPFAN50PLUS, the gas valve option and the blower motor options from the option box above.*

How big is the vent on an Atwood 8900 furnace?

The Atwood 8900 furnace and Atwood 8500 furnace incorporate a unique outside vent design integral with the access door, which eliminates the need for a variety of vent kits. The cutout size required for Atwood Excalibur is 7 1/2″ H x 16 1/2″ W. 8.3 Amps for old model furnaces. Cut out dimensions are made.

What makes an Atwood Excalibur 8500 IV more efficient?

The Atwood Excalibur 8500 IV series have been redesigned to be more efficient and quieter with a new burner and blower assembly. The new design has eliminated the obstruction and minimized the turbulence in the blower housing. This decreases overall noise with an increase in airflow.

Why does my Atwood Excalibur furnace not stay lit?

Hi. I have an Atwood Excalibur 8500 III hydro flame furnace. It comes on and the burner ignites but it won’t stay lit. It “attempts” to light the death, turn it off, or the battery runs down). wheel etc. I found that the blower housing had a missing screw which would cause low static pressure.

How big is the Atwood DCLP LD camper furnace?

This removed the annoying frequency spikes, and the overall noise with an increase in the airflow. This Atwood Model 8531 IV Replacement Furnace is brand new and comes with full factory warranty. Fits openings 17″ W X 7 1/2 H. Furnace measures 16 1/2 wide x 7 3/8 high X 18 long. 30,000 btu rating.

What kind of Furnace is in an Atwood RV?

Atwood 8531-IV 37636 30K BTU RV Trailer Furnace 8531 Excalibur Camper Trailer RV Excalibur 8531 IV Designed for quieter nights The Excalibur 8531 IV series furnace has been redesigned to be more efficient and quieter with a new burner and blower assembly.

Only 3 left in stock – order soon. . Only 8 left in stock (more on the way). . Only 1 left in stock – order soon. . Only 20 left in stock – order soon. . Only 7 left in stock – order soon.

What kind of Furnace is Atwood hydro flame?

Please try again later. Had to fix the furnace mud daubers got up into the exhaust port and made a few nest in return would not let the furnace turn on and or ignite. The furnace is from a 1989 Terry Taurus Model 29L the furnace is a Atwood Hydro Flame Furnace Model No. 8531-II Loading…

Where can I find the Atwood furnace book?

English, Français (ET Canada) Should you require further information, contact your dealer or nearest Atwood Mobile Products Service Center. Follow this instruction to insure safe operation of the furnace. This book contains instructions covering the operation and maintenance of your furnace. Keep with unit at all times.

Where to find Atwood mobile products service book?

Should you require further information, contact your dealer or nearest Atwood Mobile Products Service Center. Follow this instruction to insure safe operation of the furnace. This book contains instructions covering the operation and maintenance of your furnace. Keep with unit at all times.

Can a bad propane regulator cause an RV furnace to not heat?

A bad propane regulator will not send enough fuel to your furnace and it won’t light correctly. One way to check for a lousy propane regulator in an RV is to light up the gas stove. If the burners have flames that change colors, this is a good indication that the propane regulator is working.

What happens if my Atwood flame furnace stops working?

That means if you fail to get the RV furnace back to work, it would get very cold later tonight. In the case you don’t want to get sick due to low temperatures, this troubleshooting guide is for you. Everything you need to know Atwood hydro flame furnace including working principles, problem symptoms and more are presented downs below.

Why is the igniter on my propane furnace not working?

The igniter is the part of the furnace that lights it up, and once it’s broken, there’ll be no heat. Any number of reasons can be behind a broken igniter. Usually, I first check the pilot light. In case it isn’t working, the problem is most likely with the thermocouple, which I check immediately after.

What does it mean when a Furnace Fan is not running?

Any obstructions will likely be near the vent opening. If you notice that your machine is still giving off heat yet the fan is not running, there are several sources you can check. Heat means that there is gas flowing so you can avoid checking the propane again. The thermostat itself can be the culprit of a dead fan even if there is heat.

Where can I buy an Atwood hydro flame furnace?

SERIES 7900-II, 8012-II, SERIES 8500-IV SERIES 8900-III 1120 North Main Street • Elkhart, IN 46514 USA : 800-546-8759 Canada & USA : 800-825-4328 Internet: Literature number 30093 hydro flame™ Furnace Models SERIES 7900-II, 8012-II, SERIES 8500-IV Series User’s Information Manual

Is the Atwood 8500 a two stage furnace?

Atwood 8500-IV Model 2334 Two Stage / 2 stage ADDITIONAL ATWOOD FURNACE 2334 2 STAGE AVAILABLE PARTS LINKS

Are there still parts for the Atwood hf-80 furnace?

Please Note: very few parts are still available for the HF-80 series. Only the active parts are listed below for this reason and or critical parts that are obsolete.

Can a white Rodgers valve be replaced on an Atwood furnace?

Item#MM White Rodgers Gas Valve 38607 (Note: the HF-80 furnace came with 2 different gas valve configurations that are not interchangeable, valve 38607 will only replace White Rodgers valve 3337 & 33337 and will not replace ITT valve 1164. Please Note: very few parts are still available for the AC-82 series.

What does it mean when your AC fan doesn’t start?

When the fan doesn’t start even though the AC is turned on, it can be a clear sign that there’s a fault with the motor. When the AC runs without the fan circulating air, it can eventually lead to the evaporator coils freezing over. Once this happens, your air conditioning unit is at risk of suffering more serious damage.

* Please Note: You may add the igniter board 31501 options and blower motor kits options from the option box above.*

What are the parts on the Atwood 8535-iv?

ATWOOD FURNACE 8535-IV EXPLODED PARTS VIEW LINKS. Item# 1 Blower Wheel 33126. Item# 8 On/Off Switch 31092 (Replaces P# 36121) Item# 9 Gas Valve Replacement Coil 31000 NLA. *Not Shown* Time Delay Relay 48000. Item# 10 Combustion Air Wheel 33128. *Not Shown* Screw Door Latch 33847. Item# 14 Slide Plate 37411. Item# 15 Thermostat, Brown 38452 NLA.

How to replace limit switch on Atwood 8535?

Next you need to remove the control board. Disconnect both white connector and high-voltage wire, unscrew the nut on top and take it out (with black frame holding it).

Atwood HydroFlame Furnace Universal DC Ignition Control Kit Instructions 8535-iv Doc 38677

Why is my Atwood camper furnace not working?

1 First, check to see if the igniter is dirty or corroded. 2 You could have a bad electronic control board on the furnace. 3 The sail switch detects airflow and could shut off the furnace before it can ignite. 4 Your furnace isn’t getting propane. 5 Finally, you could have dead insects clogging the combustion chamber. …

Next you need to remove the control board. Disconnect both white connector and high-voltage wire, unscrew the nut on top and take it out (with black frame holding it).

How to replace an Atwood RV water heater switch?

RV Water Heater Thermal Cut Off Switch Kit Replace for Atwood 93866 Work for The Electronic Water Heater Models # GCH6-4E GCH6-6E G6A-7E G6A-8E GC6AA-9E GCH10A-2E G610-3E GH610-3E XT Series. . . . . Only 19 left in stock – order soon.

Are there any Atwood water heater parts left in stock?

Only 1 left in stock – order soon. RV Water Heater Thermal Cut Off Switch Kit Replace for Atwood 93866 Work for The Electronic Water Heater Models # GCH6-4E GCH6-6E G6A-7E G6A-8E GC6AA-9E GCH10A-2E G610-3E GH610-3E XT Series. . . . . Only 19 left in stock – order soon.

Are there any Atwood RV furnaces left in stock?

Only 17 left in stock – order soon. . Only 1 left in stock – order soon. . Only 1 left in stock – order soon. . Only 8 left in stock – order soon. . Only 4 left in stock – order soon.

Why does my Atwood water heater not turn on?

Atwood Water Heater Clicks But won’t Ignite The possible reason behind this is a faulty control board. To confirm this issue, check for power on the wire that goes from the board to ECO. Or, check the wire that goes from the ECO to the gas solenoid while the igniter is clicking.

What does it mean when your furnace wont ignite?

A bad wiring between the igniter and the circuit board can also mean the furnace wont ignite. Another reason could be a dirty spark ignitor. It will not allow the spark to reach the burner and the fuel. Another common problem where in the fan runs but there is no heat or very less heat in the furnace.

How to fix an Atwood gas water heater?

Check connections and voltages and look for easy simple fixes (bad resistive switch contacts, ribbon cable connection, other limits) FIRST before investing in circuit boards etc. Atwood G6a-8E Gas water heater; problem: Turn switch on inside, no ignition. Leave switch off, go outside to heater and un-plug 4 pin connector.

How to troubleshoot a bad Atwood ignition switch?

Leave switch off, go outside to heater and un-plug 4 pin connector. Go back inside and turn switch on Go back outside and plug in 4 pin connector, then heater will ignnite !! Seems like bad switch or perhaps control board, or ??? It’s the board. An interesting troubleshooting process.

Which is part number for Atwood water heater 96220?

The number 96220 is the OEM part number of the discontinued Atwood G6A-8E Water Heater AT96121 and we do have the correct circuit board (control panel) for that. The part you need is the Replacement Control Panel for Atwood Water Heaters # AT91367.

How does a propane heater work in an Atwood RV?

Propane works by utilizing oxygen since it blazes and radiates dampness as a by-result of the ignition. Standard Atwood RV Furnace Propane heaters use a considerable blower procedure to envoy outside, oxygen-inexhaustible air. Thus, they vent the cold, oxygen-drained air from In the apparatus to the surface.

What are the most common RV furnace problems?

common rv furnace problems include the furnace wont light, it wont heat properly or it could cycle on and off. Furnace could also make nosie. common rv furnace problems include the furnace wont light, it wont heat properly or it could cycle on and off. Furnace could also make nosie.

How can I Keep my RV furnace in good condition?

A preventive maintenance can really help in keeping the furnace in good working condition. A newly installed furnace can also face issues in which case its easy to get it replaced under warranty.

What should I do if my RV furnace is corroded?

Prepare a slurry blend of water and baking soda. Disconnect carefully the wires and the connections from the terminal which is corroded. Make use of a toothbrush for applying the baking soda mixture and scrub the corroded material carefully.

Why is my thermostat not working in my RV?

The thermostat is not connected to the onboard batteries in some RVs. These units are usually powered by AA batteries. In the majority of these cases, the display screen is going to blink or it might also provide you with a blank screen. In such cases, replacing the batteries will be a sensible idea.

Why does my camper fan not ignite the furnace?

Another common problem where in the fan runs but there is no heat or very less heat in the furnace. This could be because of insufficient air flow in the furnace. An internal sail switch senses low air flow and which cause the furnace not to ignite. This means the fan will run but no heat will be produced.

What kind of fan does a hydroflame 8525 use?

The Hydroflame 8525 is a furnace manufactured for campers, pop-tops and recreational vehicles. It uses 12 volts of direct current, along with propane, to power the fan and the heating elements.

What kind of electrodes did the Atwood furnace have?

3–Atwood had two types of electrodes for ignition—If you have two wires going to electrode—one is ignition–other is temperature sensor (that tell circuit board there is a flame).

Is the Atwood Excalibur furnace dfmd30111 dangerous?

Model DFMD30111. WARNING: This product may contain one or more chemicals known in the State of California to cause cancer and/or birth defects or other reproductive harm. For more information, visit

Is the 8531 IV a direct replacement for mod # 8531-11?

Answer: Yes, it would be a direct replacement for your model. Is the 8531 IV a direct replacement for mod # 8531-11? By Vick Answer: Yes, it is.

Please Note: very few parts are still available for the HF-80 series. Only the active parts are listed below for this reason and or critical parts that are obsolete.

3–Atwood had two types of electrodes for ignition—If you have two wires going to electrode—one is ignition–other is temperature sensor (that tell circuit board there is a flame).

Why does my furnace not ignite when I Turn on the heat?

5. The Pilot Light (Faulty Ignition Sensor) The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite. This is typically the problem if you can hear your furnace click on but it does not fire up.

Why does my home heating system not ignite?

If the air in your system is not flowing it cannot produce the required gas/air mixture and your home heating system will not ignite because of it. Often times the reason air does not get to your furnace’s igniter is because it is restricted. The main reason for this air restriction is usually traced back to dirty air filters.

Why does my gas furnace not light up?

When the furnace does not light after a few cycles, it shuts off into lock out mode as a safety feature. This can happen from low gas pressure, running out of LP, failing gas valve or problem with the igniter. Most likely it is a propane issue if it worked the night before. If it is really cold outside,…

How many Atwood furnace parts are left in stock?

Only 10 left in stock – order soon. . Only 9 left in stock – order soon. . Only 4 left in stock – order soon. . Only 5 left in stock – order soon. . . Only 19 left in stock – order soon.

How many Atwood 8535’s are left in stock?

Only 2 left in stock – order soon. . Only 17 left in stock – order soon. . Only 5 left in stock – order soon. . Only 3 left in stock – order soon.

What kind of flame limit switch do I Need?

Ordered new limit switch (Atwood 37022 Hydro Flame Limit Switch 190 Degrees, around $15 with shipping) paying attention to get one with correct limit temperature and also trying to find out with RV manufacturer (for no reason I decided to contact them, not Atwood) whether it’s possible to take sail switch out without taking the furnace unit out.

What’s the problem with my Atwood 8500 heater?

The furnace has been causing us problems for some time and hoping someone can offer some help in finding the problem. When the furnace is turned on, the fan runs and then a short time later the furnace fires and begins to heat. The furnace works fine and heats to the temperature set on the thermostat.

Where can I find the Atwood furnace manual?

Atwood manual for furnaces with wiring diagrams. See if you can use this manual to help troubleshoot the problem.

Where does the blue wire go on an Atwood 8500?

The blue wire is 12v pos from the thermostat. The red wire goes to the gas valve and the black wire is 12v neg. There are two red wires separately on the ignition control – one to the blower motor and one to the circuit breaker.

Why is my Atwood 8531 furnace not igniting?