Benefits
- Reduce cooling and heating cost by up to $200.00
- Improve efficiency
- Add 1 to 8 years to equipment life
- Improve capacity up to 25%
What we do
- Clean evaporator coil in place
- Clean evaporator drain pan
- Monitor expansion valve
- Clean or replace standard filters
- Tighten electrical connections
- Evaluate safety controls
- Measure temperature difference
- Evaluate vent system
- Adjust operating pressure
- Measure amperage draw
- Visually inspect ductwork
- Clean heat exchanger
- Clean condenser coil
- Adjust thermostat calibration
- Check fan blades for tightness
- Lubricate fan motor
- Check start and run capacitors
- Check start and run relays
- Monitor refrigerant level
- Clean and adjust burners
- Measure voltage differences
- Measure air flow
- Set manifold pressure
Maintaining and Servicing
Heat-pump performance will deteriorate without regular maintenance and service. The difference between the energy consumption of a well-maintained heat pump and a severely neglected one ranges from 10 to 25 percent.
Regular Maintenance
- Clean or replace filters regularly (every 2 to 6 months, depending on operating time and amount of dust in the environment).
- Clean outdoor coils as often as necessary (when dirt is visible on the outside of the coil).
- Remove plant life and debris from around the outdoor unit.
- Clean evaporator coil and condensate pan every 2 to 4 years.
- Clean the blower’s fan blades.
- Clean supply and return registers and straighten their fins.
Professional Service
- Inspect ducts, filters, blower, and indoor coil for dirt and other obstructions.
- Diagnose and seal duct leakage.
- Verify adequate airflow by measurement.
- Verify correct refrigerant charge by measurement.
- Check for refrigerant leaks.
- Inspect electric terminals, and if necessary, clean and tighten connections, and apply nonconductive coating.
- Lubricate motors, and inspect belts for tightness and wear.
- Verify correct electric control, making sure that heating is locked out when the thermostat calls for cooling and vice versa. Verify correct thermostat operation.


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[...] Heating Specialists. Through their website you will be able to find out more about Cook’s heating and air conditioning maintenance products and services – [...]