Heater unit does not turn on at all. Power is connected and working. It is very old and not serviced in some time. Worked fine yesterday though. Any thoughts>?
Heating & Cooling - Carrier - XQB153D Air Conditioner
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Answers & Comments
Hi,
Due to high vibrations in unit, Connections can come loose Resulting in occasionally not working, If you can remove the cover with power disconnected of cause and with a insulated screwdriver/ Pliers check & push all connections For firm & tight connection.