STIEBEL ELTRON PSH Universal EL с 05.12.2011 - Manual (Page 31)

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www.Stiebel-eltron.CoM PSH UniverSal el| 31
inStallation
troUbleSHooting
15. troubleshooting
Note
The high limit safety cut-out can respond at temperatures
below –15 °C. The appliance may be subjected to these
temperatures during storage or transport.
f f Display the fault code (see chapter "Settings / Displaying the
fault code").
f f The plugs are described in chapter "Specification / Wiring
diagrams and connections".
fault Code Cause f f remedy
The heat-up time is very long and the
heat-up symbol lights up.
The flanged immersion heater is scaled up. Descale the flanged immersion heater.
The safety valve is dripping and the
heat-up symbol does not light up.
The valve seat is contaminated. Clean the valve seat.
The display flashes. E2 The temperature sensor is faulty. Check whether plug X10 is properly inserted.
E4 Check the temperature sensor.
E128 Communication between the electronic assemblies for
control unit and operation is faulty.
Check whether plugs X2 are inserted properly in both
assemblies. Check the assemblies and the connecting
cable.
The water does not heat up.
The heat-up symbol does not appear.
The display flashes.
E8 The high limit safety cut-out has responded. Check the appliance and eliminate the cause. Press the
reset button (see diagram).
The high limit safety cut-out has responded because the
thermostat is faulty.
Remedy the cause of the fault. Replace the high limit
safety cut-out.
The high limit safety cut-out has responded because the
temperature has dropped below -15 °C.
Press the reset button (see diagram).
The booster heater does not switch on. Check the button.
The flanged immersion heater is faulty. Replace the flanged immersion heater.
The water does not heat up.
The display flashes.
E6 The temperature sensor is faulty. Check whether plug X10 is properly inserted.
Check the temperature sensor.
reset button, high limit safety cut-out
f f Isolate the appliance from the power supply.
f f Undo the screws and remove the bottom cap.
f f Disconnect the connecting cable from the electronic assem-
bly for operation, position X2.
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1 High limit safety cut-out reset button