Models without A/C
The cooling fan operates at each speed when the current flows in the cooling fan motor as per the following.
| Cooling fan Speed |
Cooling fan motor terminals |
| (+) |
(-) |
| Low (LOW) |
1 |
3 and 4 |
| 2 |
3 and 4 |
| 1 and 2 |
3 |
| 1 and 2 |
4 |
| High (HI) |
1 and 2 |
3 and 4 |