Contactor And Mov Check - Southbend SEZ/3 Operator's Manual

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ROUBLESHOOTING
Figure 11

Contactor and MOV Check

C
B
A
1. DISCONNECT POWER AT CIRCUIT BREAKER.
2. Remove control panel and disconnect twelve-pin plug PL1.
3. Depress actuator on top of contactor. Actuator should travel freely and spring back when released.
4. Check for continuity between contacts A and D as shown in top view.
continuity.
5. Repeat Step 4 for contacts B and E and for contacts C and F.
6. Remove wire C16 from contactor coil.
7. Place test leads on contactor coil terminal as shown in left side view.
8. Check resistance.
9. If resistance is not in the range 350 to 425 ohms, remove MOV and recheck coil resistance.
If resistance is now in the range 350 to 425 ohms, replace MOV, otherwise replace contactor.
10. Reconnect all wires.
P 28
AGE
Actuator
F
E
D
TOP VIEW
SEZ S C
ERIES OUNTERTOP
MOV
LEFT SIDE VIEW
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PERATOR S ANUAL
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TEAMERS
There should be no