Furnace and fridge no LP gas.

[am1958]

Hi,

I just got the trailer, (2014 Bullet 31BHPR), out of storage for a trip to Myrtle Beach beginning Friday. I got it home, plugged it in to shore power, turned on the fridge and it went, appropriately, to AC. I tried to turn on the furnace to take the chill off and the blower motor comes on for 20-30 seconds but I don't hear the igniters clicking. I left the fridge on and disconnected from shore power after turning on and lighting the stove to prove LP gas is flowing. The igniters click merrily away but nothing happens. Thinking the battery may be low I left it plugged in to shore power overnight.

This morning the furnace acts in the same fashion as does the fridge. Battery tests in the 12.8-13.1 range. I completely disconnected both gas bottles and reconnected them all. No change in fridge or furnace. I put all the stove burners on full for 30 seconds or so to ensure consistent pressure. All seems fine. I briefly turned on the LP side of the water heater with the cover open. It lit immediately with a strong blue flame.

I will have full hookup in Myrtle Beach and have electric heaters so that isn't an issue I can't overcome. Since it is a two day trip there, (in SE Michigan), I'd like to be able to run the fridge while traveling.

Does anyone have a suggestion as to what I should do next?

[am1958]

UPDATE:

I fired up the LP water heater to heat a tank of water to test and it went for 30 seconds and died. I retried and it started dying after about 5 seconds. I blew it out with compressed air and it runs normally now.

After this I tried letting the fridge do a complete 3 tries to light and fail cycle though one had taken place when I first fired it up. I disconnected shore power with the fridge off and turned it on. It went through the cycle and failed. I turned it off and on again and it fired right up on gas and I instigated a series of "connect/disconnects" from shore power checking the fridge between each connection or disconnection. It functioned perfectly.

So, despite standing there for 20 minutes or so turning on the furnace, listening to the fan for 20-30 seconds and then have it cut out, turning the furnace off for 30-60 seconds and turning it on again only to have the same thing happen I can say I have made some progress.

Where exactly is the jets for the furnace? I'm getting confused. Last year the furnace wouldn't light, I blew out what I thought to be the furnace jets and it worked straight away. Now, having blown out the same place again with no good result I find that when the fridge started working on LP the area I thought was the furnace jets gets warm.



In the picture the jets I thought were the furnace jest are behind the panel with the red circle on it. There are the jets and a "sliding circle" where the arrow points that I have blown out both where the jets enter and through the "sliding circle". This is also the region that gets warm when the fridge is on. The contacts circled in blue give me 13.7V consistently.

Does this trigger a cause in anyone?

[BFL13]

This might be useful--you don't have to take out the furnace. Also some youtubes come up on Google

http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/23850783.cfm

[Mortimer_Brewst]

Sprink-Fitter wrote:

Dennis12 wrote:
Is the tank turned on. I guess Im missing it to

You do see the post above yours right?

Before being too critical, you might want to look at the times they were posted.

[Sprink-Fitter]

Dennis12 wrote:
Is the tank turned on. I guess Im missing it to

You do see the post above yours right?

[BFL13]

The fridge is easy to get at from outside, so you can see the burner etc and clean it.

With our furnace you can't get at the burner etc. Just the exhaust pipe (which was full of dead wasps and nesting when we first got the MH and the furnace didn't work until that got cleared out. Perhaps we still have some of that trouble farther in where we can't get at it, don't know)

I can't hear the furnace click sometimes from inside, but can hear it when standing outside by the furnace. When gas finally gets there, it stays clicking and it goes boom te de boom for a little then stays lit. After that, it fires right up when cycling each time.

[Dennis12]

Is the tank turned on. I guess Im missing it to

[am1958]

You're missing it... I mentioned that I tested ti stove to make sure gas was flowing and I turned on the water heater to LP gas and it lit immediately with a strong blue flame... 🙂

[Jim-Linda]

Maybe i'm missing it, but I didn't see where you actually turned the bottles on??

[am1958]

Sorry, I was unclear. The furnace acts like it did the night before and the fridge acts like it did the night before.

I also forgot to mention I gave the furnace area around the jets a good blowing out with compressed air last night.

I'll go and give it another few goes turning it on and off... and I'll blow out the furnace again for good measure too.

[BFL13]

"This morning the furnace acts in the same fashion as does the fridge"

Does that mean you can now hear the clicking from the furnace?

In our rig, the fridge and furnace won't light at first after a long time not being used, but the stove and WH light up ok. We have to keep trying and trying until the fridge and furnace finally light.

With the furnace it means using the thermostat to switch "off" let the fan stop and then switch "on" again. Fan comes on click and no heat. Eventually doing that it does light. Once it does it works fine for days, but same thing after sitting at home for a week or two.

There is something wrong with that--probably needs the burner cleaned, but I haven't attempted that yet.