to Section TOC
to Master TOC
TROUBLESHOOTING AND REPAIR | |||
| CONTACTOR & CONTACTOR PC BOARD TEST (continued) |
| |
| FIGURE F.14 – CONTACTOR PC BOARDS |
| |
| CODES 9812 AND BELOW | CODES BELOW 10500 |
|
Return
Return to Section TOC
to Section TOC
Return
Return to Master TOC
to Master TOC
S20963
J6 |
J7 
CONTACTOR
COIL LEADS
J6 | J7 |
#667 |
|
#621 | J9 |
| |
| CONTACTOR |
| COIL LEADS |
Return
Return to Section TOC
Return
Return to Master TOC
4. Apply 12 VDC to the contactor coil leads.
CAUTION
Do not leave the 12 VDC applied to the contactor coil for a prolonged period of time (15 seconds maximum). Damage to contactor may result.
5.If the contactor does not activate when the 12 VDC is applied, the contactor is faulty. Replace.
6.If the contactor activates when the 12 VDC is applied, check the resistance between the two large terminal studs with the contactor activated. The resistance should be very low (0 to 1 ohm).
7.If the resistance is “high” or “open” between the two large terminal studs when the contactor is activated, the contactor is faulty. Replace.
8.If the contactor activates and the resistance between the terminals is low when the 12 VDC is applied, the contactor is good.
NOTE: When the contactor is not activated, the resistance between the terminals should be very high (infinite). If the resistance is always low, the contacts are “stuck” and the contactor is faulty. Replace.
