ERROR | POSSIBLE CAUSE AND REMEDY | GROUP | |
CODE |
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(SYMPTOM) |
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F01 + beep | Temperature in the exhaust duct raised above 260 F due to | OCS | |
| a) | Fire in the cavity | |
| b) | Clogged air filter (not applicable to OCS models) | |
| c) | Obstruction of the exhaust duct |
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| d) | Shorted temperature sensor |
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F03 or F04 | Mismatch between the incoming line voltage and the voltage setting of the oven. | ||
| a) | Make sure the line voltage corresponds with the setting of the oven. The | |
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| voltage selector is located at the back and consists of two plugs. The white |
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| plug sets the oven for 208 V and black plug (or white plug with a black dot) |
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| sets the oven for 230 V. |
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| b) | Make sure the line voltage is within +/- 10% tolerance. This is especially |
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| important during summer months, where line voltage has tendency to drop. |
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| c) | If both steps above check OK, the error(s) may be caused by defective |
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| controller (DPU) board |
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F05 | Internal memory failure has occurred. Replace the controller (DPU) board | ||
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F09 | Oven that was designed for 50Hz electricity is attempted to operate in the 60Hz | ||
| environment. If the model number of the oven in question is listed above, most likely |
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| the controller (DPU) board has failed. |
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F33 or F34 | These codes may be triggered by either excessive heat within the oven or poor | OCS | |
| grounding of either the temp sensor or the controller (DPU) board. Check the | ||
| following: | ||
| a) | Clogged air filter (not applicable to OCS models) |
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| b) | Obstruction of the exhaust duct or insufficient ventilation |
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| c) | Defective thermal sensor (should read 30 – 70 kohm in room temperature) |
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| d) | Grounding of the thermal sensor (possible oxidation) |
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| e) | Poor connection (oxidation) at CN4 connector |
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| f) | Poor or no ground at the controller (DPU) board – ensure that all screws |
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| securing the board are in place |
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| g) | Missing screw(s) that secure the escutcheon to the frame (OCS models |
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| only) |
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| h) | If all steps above check OK, the error(s) may be caused by defective |
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| controller (DPU) board |
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F44 | This code will appear if there is malfunction of the keypad. Check: | ||
| a) | Ribbon connector of the keypad for conductive residue or oxidation | |
| b) | Perform continuity test of the keypad (use matrix shown in the service |
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| manual - DPU circuit diagram) |
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| c) | Replace the keypad, if both steps prove to be inconclusive |
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