Wolf Wall Ovens - Convection Fan Does NOT Shut off; Convection Fan Does NOT Work; Cooling Fan Does NOT Work; Cooling Fan Noisy

Troubleshooting Guide
WWaallll OOvveennss
5-8
PROBLEM POSSIBLE CAUSE TEST / ACTION
H. DOOR WILL NOT LOCK
IN SELF-CLEAN MODE
I. COOLING FAN DOES NOT
WORK
J. COOLING FAN NOISY
K. CONVECTION FAN DOES
NOT WORK
L. NOISY CONVECTION FAN
M. CONVECTION FAN DOES
NOT SHUT OFF WHEN
OVEN DOOR OPEN
N. OVEN LIGHT DOES NOT
WORK
O. RANDOM BEEPING
P. RANDOM BEEPING
OCCURS WHEN HEAD IS IN
THE CLOSED POSITION
Loose or defective wiring
Defective MDL (Motor Door Lock)
Air flow not hitting fan apparacly switch
Fan apparency switch out of adjustment
Defective fan apparency switch
Loose or defective wiring
Air diverter bracket loose
Defective cooling fan motor
Loose or defective wire connection
Defective convection motor
Fan blade out of balance
Loose fan blade
Loose mounting
Defective door switch
Defective bulb (if only one bulb out)
Loose or defective wiring
Defective fuse (if both bulbs out)
Defective door switch (if both bulbs out)
Defective key pad (if both bulbs out)
Defective transformer (if both bulbs out)
Defective relay board
Noisy Input Power
Display Case Plastic Bushing
Low Input Power
Bad VFD
Change of the Pal chip on the display
board
Check for error codes in diagnostic mode.
Perform testing procedure. Repair or replace
wiring
Ohm switches and motor. Replace if defective
Check for bowing bottom pan. Install enhancer
or deflector service package
Adjust switch
Check for error codes in diagnostic mode.
Perform element procedure. Replace if defec-
tive
Repair or replace wiring
Tighten air diverter bracket screws or replace
rivots
Check for error codes in diagnostic mode.
Perform testing procedure. Ohm motor, replace
if out of specificatons according to technical
data.
Repair or replace wiring
Check for error codes in diagnostic mode.
Perform testing procedure. Replace convection
fan assembly
Replace convection motor assembly
Tighten nut for fan blade
Tighten screws for mounting
Check continutity of door switch. Replace if
defective
Replace bulb
Repair or replace wiring
Replace fuse
Check continutity of door switch. Replace if
defective
Replace control panel assembly
Replace transformer
Replace relay board
Check grounding wire. Install if missing
If plastic bushing is there, remove it
Replace relay board.
Replace the head assembly.
Replace the head assembly.