Wolf 30 - Page 74

INDUCTION RANGE ERROR CODES
Error
Code
Shown Phrase PRI Component Error Description Service Instruction
4821 MDL shorted or missing 2 Right oven No load detected when
the MDL is turned on. Or
the drive circuit for the
MDL is conducting when
it should be open.
1 Check the MDL connections.
2 Replace the relay board.
4822 MDL shorted or missing 2 Left oven No load detected when
the MDL is turned on. Or
the drive circuit for the
MDL is conducting when
it should be open.
1 Check the MDL connections.
2 Replace the relay board.
4F21 RS485 Set output mismatch 2 Right relay board The requested output
state is not equal to the
feedback response of the
relay board.
1 Replace the Relay board.
4F22 RS485 Set output mismatch 2 Left relay board The requested output
state is not equal to the
feedback response of the
relay board.
1 Replace the relay board.
2721 Reset error 2 Right relay board The watchdog has reset
the relay board.
1 Replace the relay board.
2722 Reset error 2 Left relay board The watchdog has reset
the relay board.
1 Replace the relay board.
A026 Relay board over temperature -
ambient
2 Left relay board The relay board ambient
temperature sensor is
over 217°F (103°C).
1 Replace the relay board.
A027 Relay board over temperature -
ambient
2 Right relay board The relay board ambient
temperature sensor is
over 217°F (103°C).
1 Replace the relay board.
A0C0 Relay board RS485 wasted
frames
2 Left relay board Relay board has wasted
too many communication
frames.
1 Replace the relay board.
A0C1 Relay board RS485 wasted
frames
2 Right relay board Relay board has wasted
too many communication
frames.
1 Replace the relay board.
A03F RTD reference circuit error 2 Left relay board Reference for RTD circuit
is not correct.
1 Replace the relay board.
A040 RTD reference circuit error 2 Right relay board Reference for RTD circuit
is not correct.
1 Replace the relay board.
A0BC RS485 RTD plausibility error 2 Left relay board RTD data from the relay
board is not plausible.
1 Replace the relay board.
A0BE RS485 RTD plausibility error 2 Right relay board RTD data from the relay
board is not plausible.
1 Replace the relay board.
30" and 36" Induction Range
Troubleshooting
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