Garland STW286 Installation & Servicing Instructions Manual - Fault Finding
P151 Rev. 1 (03/05)
Page 13
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.