Renfrow Heating & Air, Inc. services all brands of air conditioning, heating and indoor air quality equipment.  Our tune-ups include:
 
WARM SEASON: check filters, compressor performance, freon charge, all safety controls; test crankcase heater, operating pressure; inspect condenser coil, evaporator coil, evaporator drain pan, condensate drain, blower and clean if necessary; record superheat; lubricate all necessary parts; clean and calibrate thermostat.

COOL SEASON: check filters, gas valve, operation of safety controls, sequencer, heating elements in operation, CO levels, heat exchanger; clean blower, interior of manifold compartment, pilot, burners; test for gas leaks; clean and calibrate thermostat; check and clean humidifier; check heat pump reversing valve and defrost cycle.