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9. TROUBLESHOOTING CONT’D
9.2 TESTS
NOTICE:
Service on this, or any other, LANG appliance must be performed by
qualified personnel only. Consult your authorized service station directory
or call the factory at 1-800-224-LANG (5264), or WWW.LANGWORLD.COM
For the service station nearest you.
WARNING:
BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS
APPLIANCE WHEN THE UNIT IS PLUGGED/WIRED INTO A LIVE
RECEPTACLE. BEFORE REPLACING ANY PARTS, DISCONNECT THE
UNIT FROM THE ELECTRIC POWER SUPPLY AND CLOSE THE MAIN GAS
VALVE. ALLOW FIVE MINUTES FOR UNBURNED GAS TO VENT.
If an item on the list is followed by an asterisk (*), the work should be done by a factory
authorized service representative.
Possible Cause TEST
Failed tilt switch
•
Unplug switch and test for continuity while raising/lowering
the hood
Failed gas valve
•
Remove the wires and check for continuity across the valve
coil
Failed spark module
•
Check for 24 VAC on TH*
•
Observe spark
Failed air switch
•
Unplug switch and test for continuity while blower motor is
running*
Failed combustion blower
•
Check for proper voltage to unit/blower*
•
Check for continuity across the motor’s windings
Improper gas pressure
•
Ensure gas pressure is adjusted properly*
Failed transformer
•
Check for proper voltage*
CAUTION:
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY
LANG OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE BODILY
INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND
WILL VOID ALL WARRANTIES.