HD7857/20 / HD7857/21
9-24
Service modes
The appliance is equipped with a dedicated service mode. The service mode enables you to carry out some settings and tests.
Please note, as the appliance is equipped with a capacitive touch panel as a user interface, special attention is required
to be able to enter several service modes. The capacitive buttons need 0,5 seconds to initialize after the mains is
connected. During this timeslot the capacitive buttons must not be touched, otherwise you will not be able to enter the
service modes.
• Manual pump calibration
Calibration-step 0: Entry to calibration mode
1. Connect mains;
2. After 0.5 second and before 1.5 second operate Button 2 and Button 5 simultaneously.
On/off LED will be switched ON.
3. Release all switches.
On/Off LED will be switched OFF.
Calibration-step 1A: Decrease calibration value
1. Push (and release) button 2 to decrease the calibration value.
The On/Off LED will be ON for 0.5 seconds.
2. Repeat step 1A.1 when required.
Calibration-step 1B: Increase calibration value
1. Push (and release) button 5 to increase the calibration value.
The On/Off LED will be ON for 0.5 seconds.
2. Repeat step 1B.1 when required.
Calibration-step 2: Store calibration value
1. Operate the On/Off button.
On/Off LED will blink fast for 1.0 seconds and the calibration value is stored.
2. Release all switches
The On/Off and 1-cup LED will be OFF
Calibration-step 3: End mode
1. Disconnect mains End test program
REPAIR INSTRUCTION
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