We have a heating system with an upstairs and downstairs thermostat, and 2 units. Our downstairs heat is not coming on unless we move the switch from heat to off and then back to heat. Then it will work for a time, but the temp will eventually drop way below where it is set, and we have to move the switch again to get the heat to come on. Have installed a new thermostat, but still have the same problem. Heat and air folks came in yesterday, and changed our filters, but we're still having the same problem.
Can anyone suggest a solution? We're desperate at this point! :-(
Thanks for any help you can provide!
Happy holidays to all!