the ac worked fine all summer as that was when it was installed-is there any diagnostic approach out there for this problem?
2006-11-09 18:28:14 · 4 answers · asked by vegassman 2 in Home & Garden ➔ Maintenance & Repairs
Silly question, do you have a heat pump? If so, there may be a dip switch inside your new stat for "gas, electric, or heat pump" Start there, if not some t-stats need a common wire to operate, that is a common proble that if remidied if you have an unsued wire on your pull from the air handler for that purpose. If not you will have to get one to it. Then again some digital t-stats will not communicate with the control board on the out side unit. PS. the 4 way valve outside could be stuck. Get a contractor (save the headache)
2006-11-11 14:02:13 · answer #1 · answered by Uncle Baby 2 · 0⤊ 0⤋
if you have a multi wire system (probably five wires) you may have one of two things going on - a pair that are switched (as in one wire was supposed to be hot, but got mixed with the ground) or an improper jumper on the thermostat. I can't tell from Canada, but do you actually have a heat pump unit? is the thermostat set for the near-universal 12-24 don't matter dc circuit control, or is it a 'milliamp' control that is required for your heat pump interface. Take a look at that, and spec it true, you might want to call an hvac contractor if you don't know. Sure, costs, but then it's done, and you have peace of mind. (and some sort of warranty on the work).
2006-11-10 02:44:03 · answer #2 · answered by BrettO 2 · 0⤊ 0⤋
Look for a switch in the thermostat that changes the reversing valve to energized, or de-energized. Or the wires to the correct terminals to do the same. Check the paper that comes with the thermostat.
2006-11-10 09:56:29 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Well, something like this is difficult to diagnose without laying eyes on it. I have included a link for you that might be helpful. Good luck.
2006-11-10 02:32:31 · answer #4 · answered by Rich B 5 · 0⤊ 0⤋