Sub-Zero Wolf Drop-Down Door Series

Page 30
Troubleshooting
Troubleshooting
Microwave Drop-down Door Series
Microwave Drop-down Door Series
4-3
#826151 - Revision A - March, 2016
CONDITION
BLOCKED COOLING FAN
NO POWER AT WALL OUTLET
HOME FUSE OR BREAKER
BOARD CONNECTIONS
MIS-ADJUSTMENT OF SWITCHES
INCORRECT OPERATION
BLOCKED VENTILATION OPENINGS
LED OVEN LAMP
POWER SUPPLY CORD
RELAYS 1,2
CONTROL BOARD
DISPLAY BOARD
FAN MOTOR
TURNTABLE MOTOR
NOISE FILTER UNIT (NFU)
20 AMP FUSE
THERMAL CUTOUT (OVEN)
THERMAL CUTOUT (MAGNETRON)
MONITOR SWITCH
STOP SWITCH
MONITORED LATCH SWITCH
PWB FUSE
OPEN CIRCUIT WIRE HARNESS
SHORT CIRCUIT WIRE HARNESS
HIGH VOLTAGE CAPACITOR
HV WIRING
HV RECTIFIER ASSEMBLY
HIGH VOLTAGE TRANSFORMER
MAGNETRON
AH SENSOR
Home fuse blows when power cord is plugged into wall outlet
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OFF
"12:00" does not display when power cord is plugged into wall outlet
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CONDITION
Oven does not operate as expected when STOP buon is touched
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Oven LED lamp does not illuminate when door is opened
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Oven does not start when START buon is touched (display )
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Fan motor does not operate (Oven LED lamp illuminates)
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Turntable motor does not operate (Oven LED lamp illuminates)
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COOKING
Oven or electrical parts do not stop when mer reaches '0' or STOP buon is touched
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CONDITION
Display appears correct but other electrical parts do not operate
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Oven begins cook cycle but shuts down before end of cycle
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Oven appears to be operang correctly (100% power) but lile or no heat is produced in load
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Oven does not seem to be operang properly during variable cooking condion
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20 amp fuse blows
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SENSOR
Cooking does not end during sensor cooking condion (oven does not shut off aer water is boiling)
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COOKING
Oven stops 10-20sec aer starng (displays error)
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PROBLEM
POSSIBLE CAUSE
AND
DEFECTIVE PARTS