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Roubleshooting, Unit not working, no lights – Southbend CG90-1 User Manual

Page 26

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T

ROUBLESHOOTING

C

OMBINATION

O

VEN

P

AGE

26

O

PERATOR

S

M

ANUAL

1180963

TROU

BLE

S

H

OOTI

N

G

Unit Not Working, No Lights

Unit Not Working, No Lights.

Check circuit breaker

Ensure 120V between terminals TBA1

and TBA2 of terminal block A.

Is voltage

approximately

120 volts?

With switch in "ON"

position, check voltage

between TB-B1 and TB-B2.

Is voltage

approximately

120 volts?

Test and

replace power

switch, as

necessary.

Check voltage between

terminals TB-B3 and TB-B6.

No

Yes

No

Yes

Is voltage

approximately 24

volts?

Test and replace

transformer, as

necessary.

Check wiring.

Replace

control board.

No

Yes

Check voltage between where Wire 57

attaches to fuseblock and TB-B2.

Test and

replace fuse,

as necessary.