Jump to content

Auto Setting For Air Conditioner


chuckbear

Recommended Posts

We have 3 settings used on our thermostat to operate the AC normally. Cool, off, or Heat , Fan speed Hi or Lo, and Fan on or auto. The normal settings are

Cool/ Hi/ Auto. We have found that with the sun heating up the outside wall where the thermostat is located, sometimes it is 75 inside, but we have to turn the thermostat up to 90 or above to get the AC to shut off. Once the sun moves past the point where it's shining under the awning and on the outside wall, the thermostat and A/C become more accurate as far as temps and the unit running.

Link to comment
Share on other sites

I'd try a new thermostat. Our rear AC came on and ran fine, but wouldn't shut off when set temp was reached, only when we used the "off" position. Looking inside the thermostat for loose wires, corrosion etc, it looked like brand new inside, there wasn't even any dust. DH took a long shot and replaced the thermostat and it works just fine now. Try the inexpensive solutions first.

Link to comment
Share on other sites

  • 2 weeks later...

Any electronic temp control has a thermistor. Basically it change either voltage or resistance dependant upon tempurature. If you pull the cover off and take the clearest pic possible, I can circle it in a graphics program for you. Here is a typical generic one:http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_207037_-1


This is actually one of the big ones. lol That head is the size of a nitro pill.

 

EDIT: If you can solder, it'd easy-peasy to replace. The problem is figuring out the correct value.

 

 

SECOND EDIT: Actually, just replace the stat. This could happen if you hook the wrong one up....http://youtu.be/77ARIvt9RrE

Link to comment
Share on other sites

Chuck, I have the same control unit in mine and have also started having a problem with the slide that controls the front AC...my problem is a little different, in that the lever or contact the lever operates must be wearing out and when I put it in the off position the little green light shows it to be still on. I can wiggle it a little and it goes off but I foresee the problem getting worse. I posed the question in another forum (on this board) of how easy it was to just replace the whole thermostat as a unit and most replied that it was a fairly easy job...that is probably what I will do when I find one that will take its place...I am also a member of the Discovery Owners Assc. and their forums are extremely helpful for just about any problem...I will post the problem on there and see what kind of results I get...I'm pretty sure we arent the only ones with problems with that control unit wearing out. I will be glad to pass along any thing I find out from the other forum.

Link to comment
Share on other sites

Chuck, I have the same control unit in mine and have also started having a problem with the slide that controls the front AC...my problem is a little different, in that the lever or contact the lever operates must be wearing out and when I put it in the off position the little green light shows it to be still on. I can wiggle it a little and it goes off but I foresee the problem getting worse. I posed the question in another forum (on this board) of how easy it was to just replace the whole thermostat as a unit and most replied that it was a fairly easy job...that is probably what I will do when I find one that will take its place...I am also a member of the Discovery Owners Assc. and their forums are extremely helpful for just about any problem...I will post the problem on there and see what kind of results I get...I'm pretty sure we arent the only ones with problems with that control unit wearing out. I will be glad to pass along any thing I find out from the other forum.

I've noticed the same issue with ours, but for now, it's not a problem. The light stays on but the unit switches off and if I move the slide just a little, it goes off. I did swap the front and back sensors and the issue moved with it. So for now, I have ordered a replacement sensor for the front unit. Once it arrives, I will replace it and see if that solves my problem. A complete replacement might be down the road but I'm hoping this will fix things for now. I'll let everyone know. Chuck

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...