ELECTRIC COMBI OVENS - SERVICE PROCEDURES AND ADJUSTMENTS
| CONVECTION FAN MOTOR | ||
CONVECTION FAN | VALUE | ||
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MOTOR TYPE | POSITION 1 | POSITION 2 | |
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| (MINIMUM) | (MAXIMUM) | |
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1 motor | 8 | 55 | |
(Hanning) | |||
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1 motor | 8 | 60 | |
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2 motors | 46 | 120 | |
(Hanning) | |||
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2 motors | 30 | 90 | |
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1 motor |
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(Hanning) and 1 motor | 38 | 105 | |
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NOTE: (*) Ovens are shipped from the factory with this motor and the oven control is configured accordingly.
The values correspond to the current limits only and are not the actual current draw of the motor.
11.If all the values have been entered correctly, press the START key to save the configuration settings and exit the configuration mode. To review or change a configuration value press the TIME key to return to step 1.
DIAGNOSTIC TEST MODE -
MANUAL CONTROLS
The test mode can be entered only when the oven is
OFF.
The test are performed in a fixed sequence of:
1.Displays and LED’s
2.Selector switch, keypad and adjustment knob.
3.Relays (relay on for max. of 2 seconds).
To Perform:
1.To enter the test mode press the START and TEMP keys simultaneously for 4 seconds.
2.The DISPLAY and LED test consists of flashing all displays and LED’s while the buzzer sounds. In the temperature display, all the individual display segments and the word “test” will flash intermittently. Verify all the displays and LED’s are flashing. This test will continue until the START key is pressed and held for 1 second to advance to the next step.
3.The word “test” is displayed in the temperature display and 10 (start button keypad no.) is displayed in the “time” display. The KEYPAD test consists of rotating the selector switch clockwise through each position, pressing each button on the keypad and rotating the adjustment knob clockwise then counterclockwise to check the functionality of each.
With each successful selection, the corresponding number is displayed in the temperature display. For the adjustment knob, an upper or lower dash line will be displayed (depending on rotation). See table below.
Verify that all knob positions and keypad buttons are functioning properly. When satisfied, press and hold the START key for 4 seconds to advance to the next step.
SWITCH/ KEYPAD/KNOB | POSITION | NO./DASH |
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SELECTOR SWITCH | OFF | 0 |
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SELECTOR SWITCH | HOT AIR | 1 |
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SELECTOR SWITCH | STEAM | 2 |
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SELECTOR SWITCH | COMBI | 3 |
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SELECTOR SWITCH | COOL DOWN | 4 |
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SELECTOR SWITCH | 5 | |
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KEYPAD BUTTON | TIME | 6 |
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KEYPAD BUTTON | PROBE | 7* |
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KEYPAD BUTTON | TEMP | 8 |
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KEYPAD BUTTON | DOOR | 9 |
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KEYPAD BUTTON | START | 10 |
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KEYPAD BUTTON | COMBI | 12* |
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KEYPAD BUTTON | VENT | 13* |
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ADJUSTMENT KNOB | ROTATE CW | |
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ADJUSTMENT KNOB | ROTATE CCW | |
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NOTE: Asterisk (*) indicates not available on standard | ||
manual controls. |
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4.The word “test” will still be displayed in the temperature display. The RELAY test consist of selecting a particular relay by its code number (01 to 11) with the adjustment knob and pressing the TEMP key to energize the relay for a maximum of 2 seconds. See table below. Verify that each selected relay (K1 to K10) is functioning. The status of the relay output (0 or
1)will be displayed in the left side of the temperature display. When satisfied, press and hold the START key for 1 second to advance to the next step.
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