| Air flow obstruction |
A |
Require repair |
| Attaching hardware broken |
A |
Require repair or replacement of hardware |
| Attaching hardware missing |
C |
Require replacement of hardware |
| Attaching hardware not functioning |
A |
Require repair or replacement of hardware |
| Connection leaking |
A |
Require repair or replacement |
| Contaminated |
A |
Require repair or replacement |
| Corroded |
1 |
Suggest repair or replacement |
| Fins damaged, affecting performance |
A |
Require repair or replacement |
| Fins damaged, not affecting performance |
|
No service suggested or required |
| Internal restrictions |
B |
Require repair or replacement |
| Leaking |
B |
Require repair or replacement |
| Threads damaged |
A |
Require repair or replacement |
| Threads stripped (threads missing) |
A |
Require repair or replacement |
| Tubes damaged, affecting performance |
A |
Require repair or replacement |
| Tubes damaged, not affecting performance |
|
No service suggested or required |