Southbend SEZ-5 - Manual (Page 28)

T ROUBLESHOOTING SEZ S ERIES C OUNTERTOP S TEAMERS
P AGE 28 O PERATOR ’ S M ANUAL 1181587
TROU
BLE
S
H
OOTI
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Figure 11
Contactor and MOV Check
A
B
C
D
E
F
Actuator
MOV
TOP VIEW LEFT SIDE VIEW
1. DISCONNECT POWER AT CIRCUIT BREAKER.
2. Remove control panel and disconnect nine-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. There should be no
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.