Southbend CG/22SC - Manual (Page 32)

T
ROUBLESHOOTING EZ C
OM
C
OMBINATION
O
VEN
P AGE 32 O PERATOR ’ S M ANUAL 1182851 REV 2
Blower Not Running Properly
Blower Not Running Properly (with Door Closed)
Does
blower run when unit is
cold (door closed)?
Blower motor is overheating. Check operation
of cooling fan in control compartment and
replace as necessary.
Is there
continuity in both
cases?
Replace
fan switch.
Reconnect 4-pin connector.
No Yes
No Yes
Is there continuity with door closed
and no continuity with door open?
Check door switch actuator mechanism by
closing door and observing movement of door
switch lever. Adjust or repair as necessary.
Replace door switch as necessary.
Put fan switch in “LO” position.
No Yes
Disconnect 4-pin connector. Place fan switch in
“HI” position. Locate the terminals where
Wires 21 and 55 are attached and check
for continuity between these terminals. Place
the fan switch in “LO” position. Locate the
terminals where Wires 22 and 56 are
attached. Check for continuity.
Slide control panel out. Disconnect plug PL20 (plug
PL2 for ovens built before March 1, 2002).
Place test leads in terminals on switch side of plug.
Close door. Check for continuity.
Open door. Check for continuity.
Replace control
board.
Replace motor.
Is voltage
the rated-voltage
of oven?
No Yes
TURN OFF GAS SHUT-OFF VALVE.
Close door. Disconnect 3-pin connector at
motor. Turn unit on. Check voltage between
Wires 25 and 8 by inserting test leads into the
harness side of plug PL22 (plug PL8 for ovens
built before March 1, 2002). The voltage should
be the rated voltage of the oven (120VAC or
208VAC, as shown on the serial plate).