SERVICE COMFORT CIRCLE
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8. . Service
8.1 Safety instructions
Danger:
d Service work on the unit may be performed by
qualified technical staff only.
Danger:
d Before opening the unit, follow the safety instruc-
tions in section 1.4.
8.2 Service menu
In the service menu, you can read values that provide informa-
tion on the operation of the unit
• Press the ? key and the | key simultaneously.
• To browse through the menu, press the ? key.
• To exit the menu, press the = key.
8.3 Resetting and reconfiguring the controller
In some situations it may be necessary to reset and reconfig-
ure the controller. Use this function:
• to remedy fault E1 or E2 (see section 7-3);
• after replacing a PCB (see section 8.10);
• after removing or replacing a connected unit.
To reset and reconfigure:
• press + and - simultaneously.
The controller will then search again for connected units (see
table
8-1, function 20). Next, you return to the user level.