7.11.4 Unlock the overtemperature protection
Switch off the thermostat, pull out the mains plug!
To unlock the protection, push the reset knob behind the ventila-
tion grille (see arrows). You can use for example a pen.
Switch on the thermostat.
7.11.5 Pump-motor supervision: Overload
A temperature sensor monitors the pump:
1. Alarm sounds as dual-tone signal for pump-motor overload or blockage.
2. Display of PuP signals blockage.
3. The red LED above the fault triangle flashes.
Heater switches off on both poles;
Pump and refrigerating unit are switched off electronically.
Switch off the thermostat, pull out the mains plug!
Find the cause of the fault. Perhaps the viscosity of the heat transfer liquid is
too high or the pump is blocked.
Rectify cause of fault.
Press the <Enter> key.
Also press this key if the unit has been switched off in the fault state.
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