Furnace problem that isn't covered in troubleshooting guide

[mmhailey]

Sorry I have been slow to clear this up. We actually have been low on propane and waiting on delivery. I cleaned up the gnd connections with cleaner and a brush. I turned the furnace back on and now after 24 hours it has not had the problem. I will continue to monitor and if the system fails I will get back. Thanks for everyone's help.

[185EZ]

I'm curious to find out your issue too.
Mine is doing the exact same thing and I've gone through every connection and cleaned everything.
I thought it was mainly where we boondock at 7000' elevation and lack of air.
I would open up all the outside compartment doors and it would run fine.
Once in awhile I would get the fault code at the switch and I would just flip it on and off and it was fine.

[RandyMan]

Nice job in covering the most common issues, here is one I didn't expect.

Unit would start and run at first, after 2 minutes of running, BOOM, total unit

shutdown, fan stopped, burner stopped, everything. 45 seconds to a minute

later, a regular trail for ignition would start. It would start, first the burner and

shut down in the same manner again, total shutdown, not just the burner (

in the case of a limit switch).

While it was running, I out of curiosity placed an ammeter on it to check the

amp draw and it was pulling nearly 17 amps. Specifications were supposed to

be about 9.5 amps.

Its not listed in the wiring specs or perhaps the motor, there is a circuit

breaker inside of the blower motor itself. When it trips, the motor shuts down.

The sail switch opens and shuts down the burner. The thermostat still calls for

heat so as soon as the internal circuit breaker resets, it takes off immediately.

Hopefully, this may help someone else out there.