Garland STW286A - Manual (Page 17)

Part # 4517957 Rev.13 (02/10/11) Page 17
FAULT FINDING
PROBLEM POSSIBLE CAUSES SOLUTION
Cook/Cool Down switch set to “Cook”
position. Light off. Motor not working.
No power to oven. Check power supply.
Defective Cook/Cool Down switch Replace switch.
Faulty wiring.
Check condition of all wires &
connections
Defective door switch. Replace switch
Cook/Cool Down switch set to “Cook”
position. Light on motor not working.
Oven door partially open. Close door.
Door switch out of alignment. Align switch.
Defective motor. Replace motor.
Faulty wiring.
Check condition of all wires &
connections
Faulty motor relay Replace relay
Cook/Cool Down switch set to”Cook.”
Motor working thermostat set to
temperature, lamp “on,” oven not
heating.
Combination gas valve not opening. Defective thermostat replace.
Defective valve/thermostat Replace valve/thermostat.
Noisy convection oven.
Blower wheel rubbing on oven baffle Adjust blower wheel.
Blower wheel loose on motor shaft. Retighten blower wheel.
Defective motor Replace motor.
Cook/Cool Down switch set to “Cool
Down”, motor not working.
Defective Cook/Cool down switch. Replace switch.
Defective door switch. Replace switch.
Door switch out of alignment. Align switch.
Faulty wiring.
Check condition of all wires &
connections
Oven too hot or not hot enough Thermostat out of calibration. Check calibration/replace thermostat.
No spark to igniter
Disconnected or loose hi voltage
wires.
Reconnect hi voltage wires.
Defective DSI control module. Replace DSI module
No power to oven Check power supply.
Spark to igniter,thermostat set to
temperature. Burner does not go on.
Defective combination gas valve. Replace valve.
Defective thermostat controller. Replace controller
Oven doors will not stay closed. Broken or damaged door spring Replace door spring
Wiring Diagrams can be found at the end of this manual. A relevant schematic can be found on the inside of the control panel
when it is slid out for service.