Miele Oven & Stove Error Codes

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📋 Error Code Index — Miele Oven & Stove

F11Oven Temperature Sensor Open F12Oven Temperature Sensor Short F13Control Board Fault F21Cooling Fan Fault F32Door Lock Fault F42Relay Board Fault

F11

Oven Temperature Sensor Open

RTD probe open circuit — oven cannot monitor temperature.

Medium Priority

Possible Causes
RTD probe failed open
Connector loose or corroded
Probe wiring open
Diagnostic Steps
1Test probe resistance — ~1080Ω at room temperature
2OL confirms failed probe
3Reseat connector before replacing
4Replace sensor if open confirmed

F12

Oven Temperature Sensor Short

RTD probe shorted — incorrect temperature reading.

Urgent

Possible Causes
RTD probe failed shorted
Probe wiring touching cavity metal
Diagnostic Steps
1Test probe — near 0Ω confirms short
2Inspect probe wiring
3Replace sensor — do not operate until repaired

F13

Control Board Fault

Control board internal fault detected — oven will not operate normally.

High Priority

Possible Causes
Control board component failure
Power surge damage
Diagnostic Steps
1Disconnect power 60 seconds and retry
2Inspect board for burn marks
3Replace control board if fault persists

F21

Cooling Fan Fault

Cooling fan not operating — overheating risk to control electronics.

High Priority

Possible Causes
Fan motor failed or seized
Fan blade obstructed
Wiring to fan open
Diagnostic Steps
1Check fan blade for obstruction
2Test fan motor winding continuity
3Replace cooling fan motor if failed

F32

Door Lock Fault

Door lock not confirming position during self-clean cycle.

Medium Priority

Possible Causes
Lock motor failed
Mechanical obstruction in latch path
Wiring to lock open
Diagnostic Steps
1Check latch for obstruction
2Test lock motor continuity
3Replace lock assembly if motor failed

F42

Relay Board Fault

Relay board controlling heating circuits has detected a fault.

Urgent

Possible Causes
Relay board component failure
Relay welded closed — heater running uncontrolled
Wiring between relay board and main board open
Diagnostic Steps
1Disconnect power immediately if oven is overheating
2Test relay board operation
3Replace relay board if fault confirmed

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Important Notice: Error code information on this page is based on Miele manufacturer service documentation. Oven repair involves high-voltage components. Gas appliances require licensed gas technician service. AppliancesCare Appliance Repair LLC provides this information for educational purposes only.