Diagnosed a broken thermostat on a Trane.
Fixed a Lennox furnace that was overheating from a fanspeed being on the wrong setting.
Diagnosed a house that has an open design that lets too much heat rise upstairs.
Inducer hose was loose reattached hose unit runs no problem
Control board was bad changed out board
Fixed a Trane AC that had a broken start kit.
Fixed a Trane furnace that had a broken gas valve.
Fixed a Lennox furnace that had a broken pressure switch tube.
Diagnosed a broken gas valve on a Trane 2-stage furnace.
Fixed a Lennox furnace that had to be reset.
Fixed a Lennox furnace that had a dirty flame sensor.
Bad pressure switch changed out pressure switch
Installed bad control borad