Preventive Maintenance

This is our goal to give you the very best service possible. We offer a semi-annual system checkup. This preventative maintenance helps identify any problems your system maybe having or might possibly experience in the near future.

Performing a series of operations checks will help head off problems and fine tune your system. The benefits are obvious : better comfort, lower energy bills, avoids system down time & offers peace of mind regarding family safety.

Sherrell has an annual maintenace program called the Gold Plan.

Our Gold Plan covers the following:

Plan A ( Gas Furnace )
1. Clean & adjust automatic controls.
2. Clean burners.
3. Adjust combusintion for optimum fuel efficiency.
4. Lubricate as needed.
5. Test for combustion leaks.
6. Test for shutoff response.
7. Check blower belt wear, tension & alignment.
8. Check flue for satisfactory operation.
9. Calibrate thermostat.
10. Check all wiring for loose connections & condition of insulation.
11. Clear out condensate drains.

Plan B ( Air Conditioner )
1. Rinse condenser coil if necessary.
2. Check electrical connections for tightness.
3. Check for oil and refrigerant leaks.
4. Check safety devices.
5. Check blower belt wear, tension & alignment.
6. Check expansion valve & coil temperatures.
7. Check refrigerant level.
8. Clear out condensate drains.
9. Lubricate as needed.
10. Calibrate thermostat.
11. Check all wiring for loose connections & condition of insulation.

Plan C ( Heat Pump )
1. Lubricate as needed.
2. Check defrost cycle & reversing valve operation.
3. Adjust air volume for maximum efficiency.
4. Check all writing for loose connections & condition of insulation.
5. Check blower belt wear, tension & alignment.
6. Check for oil & refrigerant leaks.
7. Test electrical controls for proper operation.
8. Check refrigerant level.
9. Check refrigerant controls & coil temperature for maximum efficiency.
10. Clear out condensate drains.
11. Calibrate thermostat
12 Check all wiring for loose connections & condition of insulation .

Plan D ( Electric Furnace )
1. Clean & check automatic controls.
2. Check all wiring for loose connections & condition of insulation.
3. Clear out condensate drains.
4. Check amperage draw.
5. Lubricate as needed.
6. Test safety shutoff response.
7. Check blower bet wear, tension & alignment.
8. Calibrate thermostat.

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Select a Plan:
 Plan A ( Gas Furnace ) Plan B ( Air Conditioner ) Plan C ( Heat Pump ) Plan D ( Electric Furnace )

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