Furnace and blower not working

[Rstellers]

I have a 2016 27’ Flying Cloud signature that I just bought. The furnace and blower are not working. Does anyone have any suggestions on how I can troubleshoot.

[OutdoorIdaho]

I would start by verifying power is available.
Is the thermostat working/in the correct mode?
Find the manual and check voltage.
Does the thermostat start the AC unit?

[Rstellers]

Thermostat is working. Voltage is at 12.5. I’ll check the AC and let you know.

[Rstellers]

AC is working. I’ll check the voltage with a multi meter at the furnace panel. Checked all the DC circuits and they are good.
Let me know if you have any other thoughts.

[GCinSC2]

Rstellers,

A go to resource for me anyway the document library at My RV Works has several service manuals for Atwood furnaces. https://myrvworks.com/wp-content/upl...ting-Guide.pdf

Darren at My RV works has complied a gold mine of manuals.

The furnace has a sequence of events to start it up and they are frequently very diagnosable just by reviewing against what step does the furnace stop at or the sound it makes etc.

If you can post the model info that can help a bit too. And have you found the CHECK light on the board yet?

Keep the info coming and take a look at those service manuals and download.

Does the stove light up?

Gary

[Rstellers]

Awesome. I’ll check the manual and post the model asap.
Yes the stove does work and I lit it to bleed any air from the line.

I don’t hear any sounds at all, no ignition or blower whatsoever, so I think it may be electrical.

[richard5933]

Do you have a manual thermostat on this? If so, have you checked the slightly hidden on/off switch tucked away on it? Confounded me for a while till I discovered that.

[alphamale49]

I've been fooled a few times by a working furnace because the interior temperature was already what I wanted with the furnace on. Duh! Also, it can take almost a minute sometimes for the furnace to start. Don't know why but it does that.

[CruizinDux]

It's a long shot but check the thermostat manual for a hard re-reboot.

I've had this solve a strange idiosyncrasy in mine. After not returning the fan speed to auto form a temp setting on low, my AC would turn on a send cold air into the trailer simultaneously with the intended propane furnace firing. Returning the fan speed back to auto did not solve the dual firing, but the hard boot of the stat did. Go figure

[guskmg]

You need to answer a few questions:
Does anything happen when you turn on the furnace with temp set above the inside of the trailer temp? Could be a bad thermostat.
Does the furnace fan start then shutdown? Faulty sail switch.
Is your house voltage above 10.5 volts? I takes more voltage to open the gas valve.
Do you have propane and is it on? Will a stove burner light?
Is the switch under the outside cover on? It is a simple on-off switch.
If all the above are OK, then I would suspect tha circuit board is faulty.
you might consider calling a mobile tech that has experience with your heater brand.
guskmg

[CruizinDux]

Great advice from guskmg.

Here are a couple of sail switch....error light threads

https://www.airforums.com/forums/f28...se-183642.html

https://www.airforums.com/forums/f54...127845-82.html
Post 1577 & 1623

Good luck