Re: NO a/c NO A/H Reply #50 – March 31, 2022, 09:54:45 pm Glenn,If there is no 12 volts at the air conditioner fuse (to ground) then you might look for a fuse in the coach fuse panel (under the refrigerator?) or a tripped circuit breaker behind the white panel. If you are lucky your white book schematics might show 12-volt power for the air conditioner circuit boards. Also, you might check for a broken data cable, plug, jack, etc. either for positive or ground.Jim2002 U320 42' Quote Selected
Re: NO a/c NO A/H Reply #51 – April 01, 2022, 02:56:50 pm My MO , when the t stat doesn't light up, is to leave the power switch "on". On two different occasions, I have come back, the next day, and there is power on the unit.Yesterday, after three days of no power to the t stat, I went to bed with switch in the "on" position. I woke up, around 1:00am, to the sound of BOTH of my a/c's running, and the t stat lit up. Instead of simply turning off the power switch, as I usually do, I turned off each a/c unit in the mode setting. The t stat is still "on".Soooooo.......Can I leave the t stat in this position, without causing damage to it? ANYONE have any ideas as to what is going on with my power to the t stat. This is making me crazy. I will leave it on, as it is getting warmer here, in Mazatlan, unless I am doing something wrong. Thanks. Quote Selected
Re: NO a/c NO A/H Reply #52 – April 01, 2022, 03:14:11 pm Symptom screams bad connection somewhere. Not sure of how to help you find it. My thermostat is always on and has been since we have owned the coach. Quote Selected 1 Likes
Re: NO a/c NO A/H Reply #53 – April 01, 2022, 07:30:45 pm Quote from: GleamB – April 01, 2022, 02:56:50 pm1. .Can I leave the t stat in this position, without causing damage to it? 2. ANYONE have any ideas as to what is going on with my power to the t stat. Glen,1. Yes2. You need to check the on/off switch (on the thermostat) to see if the contacts are bad, if so replace (or have someone replace) the switch.Mike Quote Selected 2 Likes
Re: NO a/c NO A/H Reply #54 – April 01, 2022, 08:38:42 pm 2. You need to check the on/off switch (on the thermostat) to see if the contacts are bad, if so replace (or have someone replace) the switch[/quote] Problem is that when I plugged in the high dollarIT stat, it wouldn't light up, either. Now that the t stat is "hot " the new one works also.That would preclude a switch problem, wouldn't it?? Quote Selected
Re: NO a/c NO A/H Reply #55 – April 01, 2022, 09:23:04 pm Glen,If that is the case then I would be looking for a bad end on the cable that plugs into the tstat. and goes to the AC units. The ends are thriftly made but are simple to change out. New ends can be found at most any home improvement store (along with the crimping tool)Mike Quote Selected
Re: NO a/c NO A/H Reply #56 – April 02, 2022, 06:30:16 am Glen,The power (12vdc) that feeds the thermostat comes from a breaker that is located in the set of breakers that are hid behind the removable kick panel in front of the passengers seat. On your coach year seems like it is in the range of breaker #50 to 54 find the correct breaker for future troubleshooting. That is a self resetting breaker and it could be failing. IIRC that is a 5 amp breaker. Next time you loose power see if you have voltage on both sides of the breaker. That breaker also has a second item feeding off of it but I don't recall what that is at the moment.Mike Quote Selected 1 Likes
Topic: NO a/c NO A/H