Error Code Chart - Wolf Wall Ovens Technical & Service Manual

Troubleshooting Guide
ERROR CODE
F1
OVER TEMP
RTD OPEN
RTD SHORTED
KEYBOARD ERROR
KEY COMM
COMM ERR
CHECKSUM
PROBE SHORTED
EEPROM
SENSOR CAL
CONTROL COM
RELAY CAL
RELAY STUCK
COOL FAN
SPI COMM
LOWER RELAY

ERROR CODE CHART

POSSIBLE CAUSE
Door Lock or Unlock Switches not sensed
within 60 seconds while driving the door
lock motor
Over temperature occurs when the oven
reaches a temperature of 630 °F for an
unlocked door and 930°F for a locked door
Open circuit detected on RTD Oven Sensor
Shorted circuit detected on the RTD Sensor
Key communication error
Failure between the Oven Controller and
the Control Panel Assembly
Communication lost with the oven controller
Self check done at power up, and when the
oven off key is pressed.
Temperature probe failure
Cannot read or write to Eeprom
Analog to Digital error during calibration
phase
Communication lost with the oven controller
Relay phase calibration failed the timing
problem with the relay on the relay board
Power relay shorted - sensed as being
closed when it should be open by current
sensor on the oven controller
Cooling fan apparency switch is reporting
cooling fan failure. Could be a failure either
of the cooling fan or fan apparency switch
Communication lost with the oven control
board
Lower oven shift register feedback has indi-
cated a failure
5-4
W W a a l l l l O O v v e e n n s s
Ohm door lock switches. Replace MDL (Motor
Door Lock) Assembly
Ohm RTD sensor, replace if bad. If RTD good
replace Relay board.
Replace RTD Sensor
Replace RTD Sensor
Replace Control Panel Assembly
Check flat flex cable between control panel
assembly and oven controller for bad connec-
tion. Replace Oven Controller.
Replace Control Panel Assembly
Replace Oven Controller
Replace Temperature Probe
Replace Oven Controller
Replace Oven Controller
Check flat flex cable between control panel
assembly and oven controller for bad connec-
tion. Replace Oven Controller.
Replace relay board ONLY if the error is noted
four consecutive times when in diagnostic mode
Replace Relay Board
Check fan apparency switch, may have to make
an adjustment. Ohm cooling fan, replace if
defective.
Check flex ribbon cable from head assembly to
oven control board, unplug and replug.
Troubleshoot using flow chart and end of
Section 5
Perform troubleshooting using flow chart at end
of Section 5
TEST / ACTION