Click on the brand name below to get assistance with your fault and error codes:
Thermador
Bosch
| Thermador – CT and CMT Ovens with Dreef Control Error Codes |
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| Error Code: | E1 |
| Cause: | Control Board |
| Example: | Disables clean in both ovens; allow cooking |
| Corrective Action: | Replace control board |
| Error Code: | E2 |
| Cause: | Sensor or Control Board |
| Example: | Oven temp over 625F or clean temp over 890F |
| Corrective Action: | Check sensor |
| Error Code: | E3 |
| Cause: | Open Sensor |
| Example: | Disables cooking in affected oven |
| Corrective Action: | Check sensor |
| Error Code: | E4 |
| Cause: | Shorted sensor |
| Example: | Disables cooking in affected oven |
| Corrective Action: | Check sensor |
| Error Code: | E5 |
| Cause: | Control Board |
| Example: | Disables clean in both ovens; cooking useable |
| Corrective Action: | Replace control board |
| Error Code: | E6 |
| Cause: | Selector Switch |
| Example: | Disables individual cook modes in affected oven |
| Corrective Action: | Check all functions; replace selector switch if one-piece Dreefs; replace control board |
| Error Code: | E7 |
| Cause: | Control Board |
| Example: | Remains in display; oven unusable |
| Corrective Action: | Replace control board |
| Error Code: | E8 |
| Cause: | Control Board |
| Example: | Remains in display; oven unusable |
| Corrective Action: | Replace control board |
| Error Code: | E9 |
| Cause: | Latch |
| Example: | Latch motor may run but switches do not cycle |
| Corrective Action: | Replace latch in affected oven |
| Error Code: | E10 |
| Cause: | Control Board |
| Example: | Checksum error |
| Corrective Action: | Replace Dreefs board |
| Error Code: | E11 |
| Cause: | Latch Problem |
| Example: | Will not clean |
| Corrective Action: | Replace latch in affected oven |
| Error Code: | E12 |
| Cause: | Latch Problem |
| Example: | Will not clean |
| Corrective Action: | Replace latch in affected oven |
| Error Code: | E13 |
| Cause: | Latch Problem |
| Example: | Latch does not run |
| Corrective Action: | Check for voltage to latch motor |
| Error Code: | E14 |
| Cause: | Latch Problem |
| Example: | Loose latch switch |
| Corrective Action: | Check latch for proper operation |
| Error Code: | E15 |
| Cause: | Control Board |
| Example: | Remains in display; oven unusable |
| Corrective Action: | Replace Dreefs board |
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| BOSCH – Error Cause Corrective Action |
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| Error Code: | F32 |
| Cause: | Lower oven temperature sensor failure; An open or short circuit in the lower oven sensor wiring |
| Corrective Action: |
| 1. | Check all connections, especially P24 on the power
board. | | 2. | Unplug the sensor connector and check sensor resistance (approximately 1080 ohms at room temperature with connector remove). Remember to reconnect it. | | 3. | Check that neither sensor wire is open or pinched to the appliance chassis. | | 4. | Check that the solder joints in header P24 on the power board are not broken. | | 5. | If sensor is OK, replace power board. | |
| Error Code: | F41 |
| Cause: | Upper (or single) oven motorized latch will not lock; defective or jammed upper (or single) oven door or latch switches; Defective latch motor or its wiring. |
| Corrective Action: |
| 1. | Check P24 connector on the power board. | | 2. | Ensure door latch switches are operating properly. | | 3. | Check that neither latch switch nor common wires are
pinched to the appliance chassis. | | 4. | Check that the solder joints in header P24 on the power board are not broken. | | 5. | Check P10 connector and check if latch motor wire is
pinched to the appliance chassis. | |
| Error Code: | F42 |
| Cause: | Lower motorized latch will not lock; Defective or jammed lower oven door or latch switches; Defective latch motor or its wiring. |
| Corrective Action: |
| 1. | Check P24 connector on the power board. | | 2. | Ensure door latch switches are operating properly. | | 3. | Check that neither latch switch nor common wires are
pinched to the appliance chassis. | | 4. | Check P10 connector and check if latch motor wire pinched to the appliance chassis. | | 5. | If F42 persists, replace power board. | |
| Error Code: | F43 |
| Cause: | Upper (or single) oven motorized latch will not unlock; Defective or jammed upper oven door or latch switches; Defective latch motor or its wiring. |
| Corrective Action: |
| 1. | Check P24 connector on the power board. | | 2. | Ensure door latch switches are operating properly. | | 3. | Check that neither latch switch nor common wires are
pinched to the appliance chassis. | | 4. | Check P10 connector and check if latch motor wire is pinched to the appliance chassis. | | 5. | If F43 persists, replace power board | |
| Error Code: | F44 |
| Cause: | Lower motorized latch will not unlock; Defective or jammed lower oven door or latch switches; Defective latch motor or its wiring. |
| Corrective Action: |
| 1. | Check P24 connector on the power board. | | 2. | Ensure door latch switches are operating properly. | | 3. | Check that neither latch switch nor common wires are pinched to the appliance chassis. | | 4. | Check P10 connector and check if latch motor wire is pinched to the appliance chassis. | |
| Error Code: | F45 |
| Cause: | Upper (or single) oven latch both locked and unlocked; Defective or jammed upper oven door or latch switches. |
| Corrective Action: |
| 1. | Check P4 connector on the power board. | | 2. | Ensure door latch switches are operating properly. | | 3. | Check that neither latch switch nor common wires are pinched to the appliance chassis. | | 4. | If F45 persists, replace power board. | |
Updated: 2/9/2010 9:06:00 PM - scortez@apdepot.com