WORK PERFORMED |
BENEFITS |
1. |
Start unit |
Essential to check operating efficiencies and comfort conditions. |
2. |
Inspect flue and diverter |
Ensures safe operation. Flue pipe corrosion or leaks are dangerous. |
3. |
Clean interior of vestibule |
Provides safety. |
4. |
Clean pilot assembly |
Saves money. |
5. |
Adjust pilot |
Saves unnecessary & costly service calls. |
6. |
Check thermocouple |
Provides safety and helps prevent costly emergency service calls. |
7. |
Clean burners |
Dirty burners prevent gas from being burned properly & efficiently. |
8. |
Adjust burners |
Increased efficiency & fuel savings. |
9. |
Set gas manifold gas pressure |
Provides safety; helps prevent costly repairs. |
10. |
Set burner air adjustment |
It is important to have a properly adjusted furnace for fuel economy and system
effectiveness otherwise useful heat that you have paid for goes up the flue. |
11. |
Check gas valve operation |
Provides safety and prevents costly emergency service calls. |
12. |
Test for gas leaks |
Safety check. |
13. |
Check thermostat |
Defective or improperly calibrated thermostat affects comfort and operating costs. |
14. |
Check heat anticipator |
Promotes comfort in home; helps prevent costly service calls. |
15. |
Check thermostat contacts |
Saves money; increases comfort. |
16. |
Check safety devices |
Inoperative safety controls can cause dangerous problems. |
17. |
Check fan control |
When properly set, avoids wasting heat and improves comfort conditions. |
18. |
Check limit control |
Keeps unit in safe operating conditions. |
19. |
Inspect heat exchanger for leaks |
Safety check for possibility of creating carbon monoxide. |
20. |
Inspect combustion chamber |
Saves money on fuel bills and promotes safety and helps eliminate expensive repairs. |
21. |
Check blower wheel |
A clean blower lengthens motor life. |
22. |
Check blower motor and lube |
Extends life, saves money, prevents failure. |
23. |
Check for belt tension and align |
Avoids costly service calls; saves money on utility costs. |
24. |
Check and secure all panels |
Newer systems have a blower door safety switch and will not operate if door is not
properly in place. |
25. |
Check air filter |
Dirty air filters increase operating costs. |
26. |
Check furnace wiring |
Extends life of system; ensures safety. |
27. |
Check noise and vibration levels |
Increases comfort; can extend life of system. |
28. |
Check for combustible materials around furnace |
Keeps the unit in safe operating condition. |
29. |
Check for combustion air |
Blocked or restricted combustion air openings can be dangerous. |
30. |
Make final operation test |
To make certain that everything is working just the way it should. |
31. |
Advise improvements if needed |
It allows you to gauge effectiveness, efficiency and potential need for repair or
replacement. |
32. |
Check temperature difference of supply & return air temperatures |
Temperature difference indicates production and capacity of unit. Also affects
comfort level. |