Preventative Maintenance done twice yearly will include:  Thermostat:     Checking thermostat for faulty wiring, leveling and ensure working order on highest setting.  Indoor Units:  Check supply voltage, clean or change filters, clean out blower wheel and blower compartment, check motor amperage and air temperature.  Belt Drive Blowers:    Check all wiring in blower compartment for loose connections or bad insulation, remove blower belt and check for wear, check pulley and drive alignment, check pulley and drive set screws for tightness, check motor bracket for tightness, check blower for free operation, lubricate blower and motor bearings, pull belt back on blower and drive pulleys.  Check belt tension slippage.  Direct Drive Blowers: Check all wiring in blower cabinet for loose connections and bad insulation, check motor bearings, check for free blower operation, check blower set screws for tightness and lubricate all motor bearings unless they are sealed. Indoor Coil:    Check and clean indoor coil and condensate drain.  Check static pressures and proper voltage at the transformer. Outdoor Units:   Turn off outdoor unit disconnect, check and clean outdoor coil, oil outdoor coil fan motor, check voltage on both load and line side of contractor with compressor running, check all wiring for loose connections, check all wiring for damaged insulation, turn on outdoor unit disconnect, check reversing valve operation, check amperage draw on outdoor fan motor and on compressor, visually inspect connecting tubing and coils for evidence of oil leak and return thermostat to original set point. Supplemental Electric Heat:   Turn off disconnect, check all electrical wiring for loose connections and damaged insulation, turn on unit disconnect, check supply voltage and record, check amp draw as each heating element comes on, check total amp draw and record and check humidifier. Parts:   Owners will be notified first on any unit, which requires parts.  Any factory warranties given to parts will be honored.




Preventative Maintenance for all commercial equipment such as ice machines, walk in coolers, freezers, exhaust hoods and other equipment available.