Southbend Marathoner TROUBLESHOOTING GUIDE continued, Control Panel Access And Shut-Off Switch

MARATHONER GOLD & SILVERSTAR GAS CONVECTION OVENS TROUBLESHOOTING

TROUBLESHOOTING GUIDE (continued)

Symptom Possible Cause Check or Replace

Burners light but go out within a few seconds. (Ignitor will glow approximately 4 seconds. If burner does not ignite, ignition module will try 3 times and then lock out.)

Bad flame switch.

Bad gas valve.

Check in series on micro amps. Minimum is 0.75 amps, no maximum.

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.

CONTROL PANEL ACCESS AND SHUT-OFF SWITCH

To access the control panel components, remove the screw at the top of the control panel and pull the top of the control panel out and down (see drawing below). A wiring diagram for the oven is located on the side of the control panel assembly. When the control panel is folded down, all power to the control panel is cut off by a shut down switch that is located directly behind and below the control panel. To re- energize the controls for troubleshooting, pull the white plunger on the shut down switch up.

Accessing Control Panel Components
	Screw
	TROUBLESHOOTING
Location of Wiring Diagram
OPERATOR’S MANUAL 1181887 REV 3	PAGE 43