1.

Check thermostat

Improperly calibrated thermostat affects comfort and operating costs.

 2. 

Start unit

Verify unit is operational before tune-up takes place.

 3. 

Check return air filter

Restricted filter causes unit to waste energy and shorten compressor life.

 4. 

Routine cleaning of evaporator coil**

Dirty evaporator coil decreases efficiency and can lead to compressor failure.

 5. 

Check condensate drain**

A plugged condensate drain can cause expensive water damage.

 6. 

Check condensate pan and fittings for leaks

A cracked pan or loose fittings can cause expensive water damage.

 7.

Check blower wheel

Dirty blowers reduce air flow; increases operating costs and can lead to compressor failure.

 8. 

Check blower motor stability

Dirty motors are less efficient and will fail sooner.

 9.

Check blower motor amp draw

Ensures optimum performance; protects equipment.

10. 

Lube motors & bearings

Improperly lubricated rotating equipment will eventually fail.

11. 

Check belt, pulleys and alignment

Avoids costly service calls, saves money on utility costs.

12. 

Check total electrical consumption

Ensures optimum performance; protects equipment.

13.

Examine parts for visible wear

Avoids costly service calls.

14. 

Check and secure all panels

New systems have a blower door safety and will not operate if door is not properly in place.

15. 

Examine all electrical connections

Extends life of system; ensures safety.

16.

Check unit disconnect switch

Worn, overheated disconnect blows fuses; potentially dangerous.

17. 

Check temperature difference across coil

Temperature difference indicates production and capacity of unit. Also affects comfort level.

18. 

Remove debris around outside unit

Promotes Efficiency. Prevents damage to equipment.

19. 

Routine cleaning of condenser coil

Dirty condenser coils raises refrigerant pressures increasing electrical costs.

20. 

Check condenser fan motor stability

Prevents costly service calls.

21. 

Check condenser fan motor amp draw

Ensures optimum performance; protects equipment.

22.

Check condenser fan blades for vibration

Prevents damage to unit and costly service calls.

23.

Check reversing valve

Improperly operating reversing valve wastes energy.

24. 

Check crankcase heater

Crankcase heaters that do not work lead to compressor failure.

25.

Check relays & contactors

Worn contactors and loose connections can lead to motor and compressor failure.

26. 

Check capacitors

Bad capacitors lead to compressor and motor failure.

27. 

Check all safety devices

Keeps unit in safe operating condition.

28. 

Test time delay

Prevents unit from starting under load when power has been temporary interrupted.

29. 

Check defrost assembly

A defrost timer that does not work correctly causes loss of heat and can shorten life of compressor.

30. 

Check all controls

Extends the life, saves money, prevents failure.

31. 

Test refrigeration metering device

Blockage or improper operations of metering device reduces cooling capacity, increases fuel costs, shortens system life.

32. 

Measure operating pressures with gauges

Improper refrigerant charge can cause compressor shut down.

33.

Check noise and vibration levels

Increases comfort & extends life of equipment.

34.

Check compressor amp draw

Ensures optimum performance; protects equipment.

35.

Make final operations test

To ensure optimum performance.

36.

Wax outdoor unit**

For weather protection and extended life.

37.

Record system operation

For Home owner's information and records.

38.

Explanation of tune-up results

Explanation of work performed in tune-up and results.

39.

Advise improvements as needed

To allow you to gauge effectiveness, efficiency and potential need for repair or replacement.

40.

Conclude Transaction

Answer questions, collect for work performed, signature(s) on invoice, leave customer copy of tune-up, make appointment for any additional work required.