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(Indoor Unit) Air Handler / Duct Work
- Check evaporator coil fins and condition
- Check evaporator cooling coil for restrictions
- Clean evaporator coil surface if accessible and not impacted
- Condensate drain pan inspected
- Condensate drain line blown out or vacuum
- Add algae tablets condensate drain pan
- Check condensate overflow safety switches
- Disinfect interior cabinet insulation and coil
- Inspect Expansion valve / metering device and blub
- Check Electric heater, voltage and amperage
- Test Electric heater air temperature rise
- Check Blower motor circuit boards
- Check Blower motor fan relay
- Check Blower motor run capacitor
- Test Blower motor amperage draw
- Verify blower wheel condition and balance
- Verify all breaker / fuse / wiring sizes to NEC codes
- Clean or replace Return air filter and advise
- Test Thermostat / Humidistat operation
- Check Indoor temperature and relative humidity
- Verify proper air duct sizes for optimum air flow
- Visually inspect ductwork, supply and return plenums for any leaks, separations and microbial growth for air quality
(Outdoor Unit) Condenser
- Check condenser coil fins and condition
- Clean outdoor condenser unit
- Test Compressor run capacitor
- Test Compressor start capacitor
- Check Compressor potential relay
- Run Test Compressor time delay relay
- Check Compressor contactor relay
- Test Compressor amperage draw
- Check Condenser fan motor blade setting and balance
- Test Condenser fan motor run capacitor
- Check Condenser fan motor amperage draw
- Inspect Electrical disconnect wiring and verify voltage
- Tighten All electrical connections high / low voltage
- Verify all breaker / fuse / wiring sizes to NEC codes
- Check Refrigerant pressures to factory specs (freon / puron)
- Inspect Refrigerant line set and line set cover
- Check Suction and liquid line temperatures
- System check to current code
- Check overall equipment condition
- Check Heat pump control circuit board (where applicable)
- Inspect Heat pump suction accumulator (where applicable)
- Check Heat pump expansion valve (where applicable)