House battery/thermostat problems

Grdgas · 04-20-2013, 08:06 AM

The very proud owner of a 2012 Adventurer, I foolishly let my house batteries run down to below 9V. Therefore, I now have a problem with my thermostat. I called Coleman and we went through the reset and all LOOKED fine, until I got to the setting of the temps when I got an ER. The tech I was speaking to said he thought it might be a sensor problem. Any idea where they are and/or other suggestions as to problems? Thanx Gary

RickO · 04-20-2013, 09:55 AM

Hi and welcome to the forum.

I'm having a hard time connecting the fact that you let the batteries run low with the thermostat problem.

I assume you've recharged the batteries, or are at least connected to shore power when working on the thermostat? Are we talking about the thermostat that controls your heat/AC in the coach?

Rick

Skip426 · 04-20-2013, 10:05 AM

I found out the hard way that my t'stat had a low volts alarm, beeping at 2 AM. Convertor had tripped at C/B. But every thing went back to normal as soon as volts were up.
Was part of the re-set procedure a full power disconnect ?
If you only have one A/C zone then the temp sensor should be internal to the t'stat.

YC1 · 04-20-2013, 10:44 AM

Ditto the full power disconnect even if you have to take the negative lead of the batteries off. Let it sit for a couple of minutes. Like rebooting a computer that has locked up.

Grdgas · 04-21-2013, 05:36 AM

I had a hard time with the low batteries myself. I guess that was stupid. Oh well, it happens!

Grdgas · 04-21-2013, 05:39 AM

To finish the rest, yes I recharged the batteries, and yes, the t'stat controls the heat/ac. Dual zone, gas/elec.heat,A/C.

Grdgas · 04-21-2013, 05:41 AM

The reset was "supervised" by a tech from Coleman. We ran through a, as he called it,soft reset and then a power off, full reset. The thermostat now works but won't program for temp set, and this is where the tech seems to think the sensors might be a problem.

Skip426 · 04-21-2013, 10:03 PM

I hope that you get a fix , rather than having to replace the t'stat.
JMHO. A t'stat probuced for an RV should be able to tolerate a low battery situation, many times over without this kind of problem.