Furnace Not Igniting

[excellentadventure]

I have a 303rls and have a problem with the furnace ignition, but only when using the lp gas tank on the entrance side of the coach. Everything works fine when using the tank on the utility side of the coach. When using the tank on the entrance side the furnace just cycles, and keeps attempting to ignite but won't stay lit. There is no similar problem with the stove or the water heater, both work fine from either tank. The pony regulator has been changed and ruled out. My repair guy is stumped. Me too.....

 

[TucsonJim]

This might seem kind of obvious, but to rule out a problem with the tank itself, have you switched them from one side to the other?

 

[excellentadventure]

Yes, tried that first.

 

[Sandi]

I have a 303rls and have a problem with the furnace ignition, but only when using the lp gas tank on the entrance side of the coach. Everything works fine when using the tank on the utility side of the coach. When using the tank on the entrance side the furnace just cycles, and keeps attempting to ignite but won't stay lit. There is no similar problem with the stove or the water heater, both work fine from either tank. The pony regulator has been changed and ruled out. My repair guy is stumped. Me too.....

Check because on our 369 RL the tank on the entrance side does not feed anything! It is just an auxillary tank. I bet that is your problem!

 

[huntr70]

Check because on our 369 RL the tank on the entrance side does not feed anything! It is just an auxillary tank. I bet that is your problem!

You have an early model Solitude that uses 3- 20lb tanks, right?

They don't do that anymore, and never did on the Reflections.

 

[excellentadventure]

Turned out to be a bad back check fitting, after 4 hours of process of elimination.