Condensor not coming on after i installed honeywell programable thermostat a/c unit freezing up.
SOURCE: installing a honeywell CM900 wireless programmable thermostat
the analog unit uses just two wires for heat. red - white. there is a heat anticipator setting that must match the burner current. check your programmable specs and follow instructions.
SOURCE: Honeywell Thermostat RTH7400D
The thermostat will not cut off the A/C until the thermometer reading gets to 76.
If there is not a heat source near/behind the thermostat which is causing the thermometer to read higher than actual room temperature, it sounds like the thermostat thermometer is out of calibration.
There are ways to calibrate it, but much to involved to go into here.
One solution is to just set the thermostat at 80, knowing that it's really set on 76.
Another solution is to replace the thermostat.
Charlie
SOURCE: need to wire a honeywell RTH7400D thermostat to 3 wire hot water
Just mark the old wires on the old thermnostat...R , W etc...and put them on the same terminals on the new 1.....also there should be some adjustment ire : switch on the back or under the cover to adjust for Hot water heating or electric heat...either is the setting you should have it on....also you shouldn't setback the thermostat at night or when away very much....2 degrees is fine , as the boiler will run along time to raise the temperature in the morning and may not get there by the set time
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