Thermador ERC Fault Codes

Many failure codes are caused by a faulty timer (also known as the Electronic Range Control). Sometimes, even when the failure code implies that another component has failed this can actually be a timer problem (whereby the timer is not displaying the correct fault code). If you are not sure whether the code you are seeing is due to a problem with the timer please call us, or send us an email, since we can help you determine whether the failure code is likely a timer problem or a problem with some other component. We can repair most timers so if you are sure your problem pertains to the timer (or ERC) please fill out a repair service request and send us your timer to be repaired.

Fault CodeCondition/DescriptionResolution
E1Disables clean mode in both ovens, allows cook and microwave.
  • Turn the clock selector knob to OFF
  • Adjust the oven control by turning the clock selector knob slightly to the left (counter clockwise). This may stop the flashing message/beeping and clear the display window.
Control board problem, have timer repaired
E2Turns all heat and micro off. Clears when oven temp drops below runaway temp and selector is off.Cook or clean mode runaway
E3Turns heat off on failed oven only, micro not affected. Can be cancelled by tweaking if a good oven temperature sensor is detected.Open oven temperature sensor (over 5000 ohms)
E4Turns heat off on failed oven only, micro not affected. Can be cancelled by tweaking if a good oven temperature sensor is detected.Shorted oven temperature sensor (under 500 ohms)
E5Turns all heat and micro off. Error will remain in display until repaired and powered up. No error tones.Control board too cold or too hot, or defective board.
E6Disables clean mode in both ovens, allows cook and microwave. Can be tweaked away for retry. User must unlatch and delete the "---" to try to relatch the door.Control board problem, have timer repaired
E7Turns heat off on failed oven only, micro not affected. Cleared with a mode change.Illegal temp display turn off and retry
E8Turns heat off on failed oven only, micro not affected. Error will remain in display until repaired and powered up. No error tones.Control board problem
E9Turns heat off on failed oven only, micro not affected.
  • Turn the clock selector knob to OFF
  • Adjust the oven control by turning the clock selector knob slightly to the left (counter clockwise). This may stop the flashing message/beeping and clear the display window.
Latch switch problems
E10Turns all heat off, micro not affected. Error will remain in display until repaired and powered up. No error tones.Control board problem, have timer repaired
E11Turns heat off on failed oven only, micro not affected. Tweaking clears to "---" for retry.CT oven; latch switch problem
E12Turns heat off on failed oven only, micro not affected.
  • Turn the clock selector knob to OFF
  • Adjust the oven control by turning the clock selector knob slightly to the left (counter clockwise). This may stop the flashing message/beeping and clear the display window.
CT oven; latch switch problem
E13Turns heat off on failed oven only, micro not affected. Disables clean mode in both ovens, allows cook and microwave.CT ovens; latch froze or no power to latch motor
CMT ovens; control board not converted
E14Turns heat off on failed oven only, micro not affected.
  • Turn the clock selector knob to OFF
  • Adjust the oven control by turning the clock selector knob slightly to the left (counter clockwise). This may stop the flashing message/beeping and clear the display window.
Latch switch problems
E15Turns all heat off, micro not affected. Error will remain in display until repaired and powered up. No error tones.Control board problem, have timer repaired
F0Internal logic failure; cancel key supervision. Sounds alarm and resets to non-cook modeRepair the electronic range control (also called clock or ERC)
F1Internal logic failure (monitoring function). Sounds alarm and inhibits cook modesRepair the electronic range control (also called clock or ERC)
F2Temperature runaway detected (Bake/Broil: 600 - 700 F; Clean: 930 - 1000 degrees F). Sounds alarm and resets to non-cook mode. Check relay board for stuck contacts. Check oven temperature sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check sensor wiring connectors for a loose or high resistance connection. Check electronic range control (also called clock or ERC) functionsReplace relay board if necessary. Replace oven temperature sensor if other components check normal. If failure repeats, repair electronic range control (also called clock or ERC)
F3Open circuit detected; oven temperature sensor. Check sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check wires and connections between electronic range control (also called clock or ERC) and oven temperature sensorReplace sensor if other components check normal. Repair electronic range control (also called clock or ERC) if fail code reoccurs
F4Short circuit detected; oven temperature sensor. Check sensor for normal room temperature resistance (1085-1097 ohms at 75 degrees F). Check wires between electronic range control (also called clock or ERC) and sensor.Replace sensor if other components check normal. Repair electronic range control (also called clock or ERC) if fail code reoccurs
F7Function key shorted for over 16 seconds. Check for something pressing a key or preventing normal release of the keyRepair electronic range control (also called clock or ERC) if other components check normal
F8Internal logic failure; calibration. Alarm sounds and resets to non-cook mode. Check oven temperature sensor for normal room temperature resistance (1085-1097 ohms at 75 F). Check wires and connections between electronic range control (also called clock or ERC) and oven temperature sensorRepair electronic range control (also called clock or ERC) and oven temperature sensor if other components check normal
F9Internal logic failure; door latch supervision. Alarm sounds and resets to non-cook mode. If door is locked due to clean temperatures, disconnect power until door can be unlockedRepair the electronic range control (also called clock or ERC)
FdBake & Broil relay drives active simultaneously. Check relay board for damage: trace E6 to K2 & K3, and burned contacts K3 & K4Repair electronic range control (also called clock or ERC). Replace relay board if necessary
Blank displayNo power to electronic range control (also called clock or ERC). Check oven light and cooktop dial lights (powered by L2 & L1, respectively). Check relay board transformer primary, E1 to E2 (140 ohms typical). If the transformer internal fuse is still OK, check output voltages, pins 9 - 8 (3.2 v.a.c.) and 7 - 6 (21 v.a.c.). Check clock functions after replacing relay boardIf relay board transformer open (E1 to E2), replace relay board. If still no clock functions repair electronic range control (also called clock or ERC)