Lang DO75 Installation, Operation And Maintenance Instructions page 17

Electric air door pizza oven
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Service on this, or any other, STAR appliance must be performed by qualified
NOTICE
personnel only. Consult your authorized service agent directory or call the
factory at 1-800-807-9054 or visit our website
service agent nearest you.
BOTH HIGH AND LOW VOLTAGES ARE PRESENT INSIDE THIS APPLIANCE
WARNING
WHEN THE UNIT IS PLUGGED/WIRED INTO A LIVE RECEPTACLE. BEFORE
REPLACING ANY PARTS, DISCONNECT THE UNIT FROM THE ELECTRIC POWER
SUPPLY.
USE OF ANY REPLACEMENT PARTS OTHER THAN THOSE SUPPLIED BY STAR
CAUTION
MANUFACTURING OR THEIR AUTHORIZED DISTRIBUTORS CAN CAUSE
BODILY INJURY TO THE OPERATOR AND DAMAGE TO THE EQUIPMENT AND
WILL VOID ALL WARRANTIES.
TESTS
Possible Cause
Blown fuses
Failed or tripped internal breaker
Failed thermostat
Failed Contactor
Failed 3-heat switch
Failed element
Defective motor
Product is not baking properly
*
A factory authorized service representative should perform this work.
UL File E8138
TROUBLESHOOTING CONT'D
TEST
No test available, replace fuses
Reset breaker
Verify calibration Replace if necessary*
Verify that coil has correct voltage*
Verify that coil has continuity*
Verify that contactor points move
Call factory or consult Service manual for
correct checks on each switch*
Remove the wires and check for continuity
across the element*
Verify that motor wheel spins freely Verify
that motor has correct voltage*
Verify thermostat calibration
17
WWW.STAR-MFG.COM
For the

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