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Turn off the circuit breaker to the AC and heating unit. The circuit
breaker is inside the home electrical box. The door of your electrical
box has a guide indicating which circuit breaker controls the cooling
and heating system.Pull the cover off the Honeywell manual thermostat. If necessary, use a
flat-head screwdriver to pry the cover away from the base of the
thermostat. Locate the two small screws securing the sub-base to the
base of the thermostat. The sub-base is the portion of the thermostat
that has the indicator dial or indicator lever. Remove the screws with
a Phillips-head screwdriver, and pull the sub-base away from the
thermostat.Remove the screws securing the base of the thermostat to the wall with
the Phillips-head screwdriver. Pull the thermostat base away from the
wall so you can access the wires.Loosen the terminal screws securing the wires to the back of the
thermostat with the flat-head screwdriver. Wrap the wires around a
pencil or a large screw. This will prevent the wires from accidentally
falling inside the wall cavity.
The problem is not your thermostat. It is the person who told you that your AC would be your sole source of hot water. The purpose of heat recovery is to ASSIST with hot water production and reduce the current used by your water heater. The only time your AC heats your water is when it is working to cool (or if it's a heat pump, cool and heat) your home. Turn your water heater back on and let your AC help keep the water hot. It's not supposed to do it alone.
May be sensing problem. If you want to check with company site, plz go with:
Honeywell thermostat website:
Most all of the Honeywell t-stats have a temperature adjustment feature...also check the the cycle rate is the right one for your heating system...
You will find all of this info in the manual for your t-stat...
Here is a tip that tells you how to get a manual for most any Honeywell productonline...
Make sure the NEW thermostat is for Heat Pump.. Now look at the sub-base.. The sub base will have a O/B terminal to connect the orange or blue wire to. Be sure to look back at the old thermostat to verify which wires landed on the O/B previously.. Let me know ig you have any more questions
Based on the simplicity of this particular t-stat, I really think that it is bad and needs to be replaced. They do not make this particular model anymore. I have included a link to the operators manual for the stat. Good luck!