1 Ultimate Heating Tune-Up Heat Pump: serviced and inspected heat pump system, including electrical, safeties, controls, reversing valve and defrost cycle to manufacturer specifications. Found outdoor unit on second floor to have the condenser fan motor running backwards. Somehow the polarity has shifted in the windings. This must be replaced. Replaced condenser fan motor on upstairs unit started and tested. Ultimate Heating Tune-Up Gas Heat: serviced and inspected gas heating system checking air flow, temperature rise, electrical, gas pressure, safeties, controls and limits, heat exchanger and venting. cleaned and checked system components to manufacturer specifications and performed combustion inspection.