Lower, Heel, Eplacement – Southbend B-Series User Manual
Page 36: Ontrol, Anel, Ccess and, Witch
G
AS
C
ONVECTION
O
VENS
OPERATOR’S MANUAL 1181887 REV 9 (10/14)
PAGE 36
OF 44
Symptom
Possible Cause
Check or Replace
Burners light but go out
within a few seconds.
(Ignitor will glow approx-
imately 4 seconds. If
burner does not ignite,
ignition module will try 3
times and then lock out.)
Bad flame switch.
Check in series on micro amps. Minimum is 0.75 amps, no maximum.
Bad gas valve.heat.
Check gas valve. Should be 24 volts from ignition module on wires 46 and 47.
Blower motor will not
come on.
No incoming electric power.
Check incoming power.
Loose wire connections.
Check wire connections.
Bad contactors.
Contactor pull in and supply power to motor. Verify contactor pulling in.
Motor bad.
If power is being supplied but motor will not turn, replace motor.
Shut down switch.
All power except for motor supply come through shut down switch. Check for
continuity.
B
LOWER
W
HEEL
R
EPLACEMENT
To replace the blower wheel, do the following:
1. Remove racks and rack guides.
2. Remove rear air baffle in front of blower wheel.
3. Loosen the two square heads on blower wheel hub.
4. Pull blower wheel from motor shaft. If blower wheel is difficult to pull off, use puller disk (available from Southbend
Technical Service Department as part number 1179100).
C
ONTROL
P
ANEL
A
CCESS AND
S
HUT-
O
FF
S
WITCH
To access the control panel components, remove the two thumbs screws at the top and bottom of the control panel and
slide the control panel out (see 1ST picture on next page). A wiring diagram for the oven is located on the side of the
control panel assembly.
When the control panel is slid out, all power to the control panel is cut off by a shut down
switch that is located directly inside the opening and below the control panel (see 2ND picture on next page). To
re-energize the controls for troubleshooting, pull the plunger on the shut down switch up.
To fully remove Control Panel, disconnect temp probe wires and harness connectors prior to pulling up on slide release
levers and removing.
T
ROUBLESHOOTING