Heater Blower Motor Issue

[Greg84]

So we just experienced a severe thunderstorm here in Orlando, FL. Near the end of the storm the blower for the propane heater came on and would not turn off. I pulled the fuse and the removed the outside panel covering the blower on the driver's side. Looks like a rain got blown inside, but nothing over the top. There is a reset/off rocker switch on the blower, which I flipped. Inserted the fuze which started the blower again. Tried to reset with the fuze in, but no joy.

I checked some connections to see if water was creating a short and starting the blower, but did not see any water that could cause the issue.

When the blower is running, it does make an odd ticking sound that is new.

Any thoughts or recommendations on how to fix would be greatly appreciated. I've got the fuse pulled for now.

Thanks,

[samven]

I hope things have been fixed by now but it sounds like a thermostat issue. The ticking may be the igniter trying to fire up the burner.

[Mr Sunshine]

I had something similar in my first week with our brand new Vegas. I had to turn it off with that outside switch to stop the clicking. Called Atwood, and they diagnosed a bad board. The sent it to my next scheduled stop, and I installed it. Problem fixed!

[Greg84]

Originally Posted by samven

I hope things have been fixed by now but it sounds like a thermostat issue. The ticking may be the igniter trying to fire up the burner.

Thanks. It was odd as we did not have the heater turned on at the time. We were in Orlando and it was ~ 80 outside when the heater just started to try to come on by itself...the AC was on at the time...very odd!

Unfortunately, the next day our AC kicked the bucket. The motor came loose and fell over and broke most of the fan blades. We were out of the RV at the time so I think the motor may have burned up as power was still flowing to it and it couldn't turn. Joy!

I ended taking it in to the dealer for both repairs.

Originally Posted by Mr Sunshine

I had something similar in my first week with our brand new Vegas. I had to turn it off with that outside switch to stop the clicking. Called Atwood, and they diagnosed a bad board. The sent it to me at my next scheduled stop, and I installed it. Problem fixed!

Thanks - I'm guessing this may be cause, the storm may have shorted something out. If the AC hadn't died. I would have called Thor/Atwood and see if they could have sent me the board.

[phoeg]

In case this helps someone else, this is a "double post." I posted the same replay to another thread, but I want to add my voice to help anyone. My symptoms were exactly like those of the OP.

My wife and I are taking our first big trip tomorrow in our Thor Hurricane 34F. She washed it with a high pressure stream from the garden hose (not a pressure washer), and shortly after she told me there was a clicking sound coming from the coach. I traced it to the furnace (I learned its location on the spot) and pulled the appropriate fuse. That also shut off the A/C. I was stumped. I feared the trip was shot and I'd have to go to the dealer.

After a couple hours--and giving up--I came here to research ATwood furnace problems and found this thread and another similar. I went back out, took the outside cover off the furnace, and saw "shiny" below the circuit board. I ran my finger along it and swore it was wet, but I thought I was engaging in wishful thinking.

Anyway, I got the air compressor, turned the pressure down low (like a can of air for cleaning computer equipment) and blew it out. I swear some droplets hit me in addition to the ladybug carcasses. I looked in the back and saw water droplets! I did some more and got hit with water droplets. I did it a few more seconds then turned the furnace RESET/ON switch back to "ON". Silence. I checked the A/C and it ran fine, and the furnace stayed off.

All I can surmise is that not a lot, but "just enough" water got in under the circuit board to short out some traces. When I blew it out and dried it the problem stopped.

We head to New Mexico first so the heat and dry air should help it dry further.

Thanks to this forum the countdown resumed!