Furnace won't stay on... please help!

[wguillioli]

Hello. I am trying to start furnace for first time this year but no luck. It sounds like it starts (at least the vent) and then shuts off 20 seconds later. I have propane tanks full and have turned on the stove, water heater and fridge. They all work just fine.

I have flipped the furnace swith on and off like 10 times already to flush air but nothing.

Help please!

My trailer is a jayco 2015 X17Z and furnace is Atwood.

[Grumpy]

Originally Posted by wguillioli

I have flipped the furnace swith on and off like 10 times already to flush air but nothing.

.

Are you on battery or shore power? If the fan is not spinning fast enough the sail switch may not be closing.

[wguillioli]

Originally Posted by Grumpy

Are you on battery or shore power? If the fan is not spinning fast enough the sail switch may not be closing.

I have tried both ways with battery and power. Same symptoms.

[Steve1152]

it wont light if the sail switch is bad, but it will run and then shut off if the limit switch is bad. check the red light on the board and see what codes its flashing

[wguillioli]

thanks Steve. How do I access the board? Is that the one inside under the fridge?