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6.10 Common fault signal
In case of any operational error the red “ERROR” symbol starts to blink, simultaneously the
error relay switches on (clamps 1, 2, 3). The display shows the affected control zone. Type and
cause of the problem is shown as well by other symbols. To select another control zone press
“ZONE”, but if you do so, the red “ERROR” signal won’t disappear, because the problem is not
yet solved The blinking “ERROR“ signal and the activated error relay can be deactivated, if you
switch off the operational function of the zone, by using the button.
Sensor error: The temperature sensor is not connected in an
accurate way. It is damaged or hot-wired. Prove connections
and wires. In case of any sensor error the controller won’t
switch off the heater (relay output is kept activated).
Battery error: Battery low or discharged. The battery has to be
changed immediately. The battery is located at the inside of the
control unit. Type: 1.5V (AA). Use long-term batteries. Before
changing the batteries please read the general security
instructions!
Alarm signal: Does not point out the kind of operational error.
It only shows that an error message has arrived at the “alarm
contact”. The controller switches off all heaters and extract
fans. In case of not using the “alarm contact“, it should be
deactivated.
This display is a very rare error: a forced position of a button at
the front panel. Please check!
If you modify the holiday program, the “ERROR“ signal would
appear, if starting(A) or ending(B) dates or calendar data are
conflicting. (for example: the switch-off point is earlier than the
starting point of a holiday period) In case of wrong data the
program won’t even switch on.
This is an error message (option) of a heater (clamps 72-73).
The operation mode of the controller is not changed due to the
error signal.
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