I recently changed out my old mercury thermostat to a Honeywell RTH3100C digital non-programmable thermostat. The issue I'm having is that once the desired temperature is reached on the thermostat the a/c won't shut off. What could be the issue?:(

Hi, I have 5 electronic zones, each with a separate thermostat, running off a single circulator motor. Two of my zones were heating up way beyond the temperature set on the thermostats. I shut off the thermostats but the zones kept getting heat until I finally turned off the boiler. I've...

GMP100-3 gas furnace: The furnace runs for 3-5 minutes then shuts itself off for 2-3 minutes then repeats the start- stop cycle. I turned the thermostat up but it still acts the same. Any tips would be appreciate

Hi, I have a new two stage variable speed lennox furnace, G61V-60C-091. Due to some heating problems right after the install, the company I hired also installed a new white-rodgers programmable thermostat 1F78. Unfortunately even with the new thermostat, I'm having the same problem. At 6:15am,...

I have just installed a new outdoor sauna. The new sauna heater trips the GFI breaker when the thermostat shuts the heater off after reaching the specified temperature. I have a 50 amp GFI breaker in the house 200amp load box. From there I ran #6 wire for 120 feet to an external weather proof...