Thermador Oven Error Codes Your oven is equipped with an extremely reliable and accurate electronic control. On the rare occasion that something occurs that causes a malfunction, an error message will appear in the oven selector window.
Some errors (E1, E9, E11, E12, and E13) must be cleared by turning off the oven at the circuit breaker and then turning it back on. When an error remains displayed steadily in the off position, after attempting to clear the error, a service call is required.
Thermador Oven Error Code Solutions
Fault Code | Condition/Description | Resolution |
E1 | Disables clean mode in both ovens, allows cook and microwave.
| Repair the electronic range control (also called clock or ERC) |
E2 | Turns all heat and micro off. Clears when oven temp drops below runaway temp and selector is off. | Cook or clean mode runaway |
E3 | Turns 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) |
E4 | Turns 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) |
E5 | Turns 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, repair the electronic range control (also called clock or ERC) |
E6 | Disables clean mode in both ovens, allows cook and microwave. Can be tweaked away for retry. User must unlatch and delete the “—” to try to re-latch the door. | Repair the electronic range control (also called clock or ERC) |
E7 | Turns heat off on failed oven only, micro not affected. Cleared with a mode change. | Illegal temp display turn off and retry |
E8 | Turns heat off on failed oven only, micro not affected. Error will remain in display until repaired and powered up. No error tones. | Repair the electronic range control (also called clock or ERC) |
E9 | Turns heat off on failed oven only, micro not affected.
| Latch switch problems |
E10 | Turns all heat off, micro not affected. Error will remain in display until repaired and powered up. No error tones. | Repair the electronic range control (also called clock or ERC) |
E11 | Turns heat off on failed oven only, micro not affected. Tweaking clears to “—” for retry. | CT oven; latch switch problem |
E12 | Turns heat off on failed oven only, micro not affected.
| CT oven; latch switch problem |
E13 | Turns 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 |
E14 | Turns heat off on failed oven only, micro not affected.
| Latch switch problems |
E15 | Turns all heat off, micro not affected. Error will remain in display until repaired and powered up. No error tones. | Repair the electronic range control (also called clock or ERC) |
F0 | Internal logic failure; cancel key supervision. Sounds alarm and resets to non-cook mode | Repair the electronic range control (also called clock or ERC) |
F1 | Internal logic failure (monitoring function). Sounds alarm and inhibits cook modes | Repair the electronic range control (also called clock or ERC) |
F2 | Temperature 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) functions | Replace 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) |
F3 | Open 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 sensor | Replace sensor if other components check normal. Repair electronic range control (also called clock or ERC) if fail code reoccurs |
F4 | Short 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 |
F7 | Function key shorted for over 16 seconds. Check for something pressing a key or preventing normal release of the key | Repair electronic range control (also called clock or ERC) if other components check normal |
F8 | Internal 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 sensor | Repair electronic range control (also called clock or ERC) and oven temperature sensor if other components check normal |
F9 | Internal 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 unlocked | Repair the electronic range control (also called clock or ERC) |
Fd | Bake & Broil relay drives active simultaneously. Check relay board for damage: trace E6 to K2 & K3, and burned contacts K3 & K4 | Repair electronic range control (also called clock or ERC). Replace relay board if necessary |
Blank display | No 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 board | If relay board transformer open (E1 to E2), replace relay board. If still no clock functions repair electronic range control (also called clock or ERC) |
CT and CMT OVENS
Error Code | Notes | Repair | |
E1 | C | E | Control board problem |
E2 | K | G | Cook or clean mode runaway |
E3 | A | H | Open oven sensor (over 5000 ohms) |
E4 | A | H | Shorted sensor (under 500 ohms) |
E5 | K | D | Control board too cold or too hot, or defective board. |
E6 | C | J | Control board problem |
E7 | A | I | Illegal temp. display turn off and retry |
E8 | A | D | Control board problem |
E9 | A | E | Latch switch problems |
E10 | B | D | Control board problem |
E11 | A | F | CT oven; latch switch problem |
E12 | A | E | CT oven; latch switch problem |
E13 | A | C | CT ovens; latch froze or no power to latch motor |
E14 | A | E | Latch switch problem |
E15 | B | D | Control board problem |
Notes: | |
A | Turns heat off on failed oven only, micro not affected |
B | Turns all heat off, micro not affected |
C | Disables clean mode in both ovens, allows cook and microwave |
D | Error will remain in display until repaired and powered up. No error tones |
E | Turning to off stops error and flashing can tweak away code |
F | Tweaking clears to “—” for retry |
G | Clears when oven temp drops below runaway temp and selector is off |
H | Can be cancelled by tweaking if a good sensor is detected |
I | Cleared with a mode change |
J | Can be tweaked away for retry. User must unlatch and delete the “—” to try to re-latch the door |
K | Turns all heat and micro off |
L | If two switches show locked door, then “E13” and “Lock” are permanent in display (all modes). If two switches show an open door you can tweak away the “E13” |
Professional ranges PDR30/36/48, and PGR30/36/48
Fault Code | Condition/Description | Resolution |
E1 | EEPROM error | Repair Electronic Range Control (ERC) |
E2 | Control not calibrated | Repair Electronic Range Control (ERC) |
E3 | Sensor opened | Open oven temperature sensor (over 5000 ohms) |
E4 | Sensor shorted | Shorted oven temperature sensor (under 500 ohms) |
E5 | Potentiometer failure | |
E6 | Over temperature – Cooking | Check temperature sensor |
E7 | Over temperature – Cleaning | |
E9 | No cooling fans | Check fan motor |
E11 | Door latch fault | Check door latch |
E12 | Exp. Board not connected | |
E13 | VCC lift off error | |
E14 | Selector switch error |
S, SM, and SMW Oven
Fault Code | Condition/Description | Resolution |
F1 | Element supervisor enabled | Replace main power board |
F1, F7 | Poor connection between display and touch pad | Replace control head kit and main power board |
F2 | Oven temperature detected or door light coming on after 1 hour into self-clean | Check that the oven latches and door light are operating properly. Check oven sensor from molex plug on main power board. Should read approximately 1050 |
F3 | Opened oven temperature sensor | Check connection on board, sensor should read approximately 1050 at room temperature |
F4 | Shorted oven temperature sensor | Check oven wiring, sensor should read approximately 1050 |
F5 | Element supervisor is disabled | Check oven sensor wiring, replace main board |
F7 | Shorted key | Replace control head kit and keypad |
F8 | Shorted meat probe | Replace main relay board |
F9 | Invalid door lock | Check latch and switches for proper operation, replace if needed |
FC | Communication error | Replace control head and main power board |
FF | Bad analog | Replace temperature sensor and main control |
F | Communications error | Check connections and replace main board |
FR | Invalid door latch switch Communications error at display Element supervisor | Replace lower latch Check connections, replace main board Replace lower temperature sensor and replace 2nd power relay board with main board |
C, CM, and CJ oven
Fault Code | Condition/Description | Resolution |
F10 | Power board incompatibility | Replace power relay board |
F11 | Communication error with board | Replace power relay board |
F12 | Vcc lift-off ( power relay board ) | Replace power relay board |
F13 | Power Board not calibrated | Check air switch or replace power relay board |
F14 | Control Display PCB EEPROM error | Replace power relay board |
F19 | Miscellaneous power relay board error | Replace power relay board |
F20 | Upper oven cancel key shorted high | Replace power relay board, and touch panel |
F21 | Lower oven cancel key shorted high | Replace power relay board, and touch panel |
F22 | Upper oven cancel key shorted low | Replace power relay board, and touch panel |
F23 | Lower oven cancel key shorted low | Replace power relay board, and touch panel |
F24 | Touch input key stuck | Replace power relay board, and touch panel |
F25 | Multiple touch input keys stuck | Replace power relay board, and touch panel |
F30 | Upper oven sensor shorted | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board |
F31 | Upper oven sensor open | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board |
F32 | Upper oven over temperature while cleaning | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board |
F33 | Upper oven over temperature while cooking | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board |
F34 | Upper oven cooling fan air switch not detected | Replace air switch, cooling fan, and check header P6 on PCB |
F40 | Upper meat probe shorted | Check P2 on PCB. Check meat probe wire if pinched. Replace PCB |
F50 | Upper door signal shorted low | Check P9 header on power relay board and P11 on PCB and power relay board. Check if door switch wire pinched in chassis. Replace power relay board and PCB |
F51 | Upper door stuck unlocked | Check header P9 on the power / relay board. Check if door latch switch wire pinched in chassis. Replace power relay board |
F52 | Upper oven door position error | Check P9 and P0 on the power relay board and P11 on relay board and PCB. Check if door switch wire pinched in chassis. Replace power relay board |
F53 | Upper door stuck locked | Check P9 header on power relay board. Check door latch switches and if wire is pinched in chassis. Replace power relay board |
F54 | Upper latch input shorted | Check P9 header on power relay board. Check door latch switches and if wire is pinched in chassis. Replace power relay board |
F60 | Lower oven sensor shorted | Check P2 on power relay board. Check lower oven sensor should read 1080 ohms at room temperature, if ok replace power relay board |
F61 | Lower oven sensor open, oven sensor wiring | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board. Also check P2 on power relay board for solder break |
F62 | Lower oven over temperature while cleaning | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board. Also check P2 on power relay board for solder break |
F63 | Wrong oven temp while cooking | Check sensor should read 1080 ohms at room temperature, if ok replace power relay board. Also check P2 on power relay board for solder break |
F64 | Lower oven cooling fan air switch not detected | Replace air switch, replace cooling fan, check connections, check P6 on PCB control display |
F70 | Lower meat probe shorted | Check header P2 on PCB. Check for meat probe wiring pinch. Replace Control PCB |
F80 | Lower door signal shorted low | Check header P5 on the power relay board and P11 on power relay board and PCB. Check door switch wiring and door switch. Replace control display PCB |
F81 | Lower door stuck unlocked | Check header P5 on the power relay board. Check wiring on latch switch. Replace power relay board |
F82 | Lower oven door position error (locked or open) | Check headers P5 and P0 on the power relay board and P11 on both relay board and PCB. Check wiring on door latch switch. Replace power relay board |
F83 | Lower door stuck position | Check headers P5 on the power relay board. Check wiring on door latch switch. Replace power relay board |
F84 | Lower latch input shorted | Check headers P5 on the power relay board. Check wiring on door latch switch. Replace power relay board |