Fault Table - Stiebel Eltron ETW 120 Plus Utilisation Et Installation

INsTALLATIoN
Troubleshooting
17. Troubleshooting

17.1 Fault table

fault
The appliance does not heat up.
When the outside temperature is mild, the
appliance charge is too high (when using a
charge control system).
When the outside temperature is mild, the
appliance charge is too high (when adjusting
the charge manually).
Appliance does not discharge.
The display shows fault code "E1".
The display shows fault code "E2".
The display shows fault code "E3".
17.1.1 Resetting the high limit safety cut-out (F1)
1 Reset button, high limit safety cut-out
Once the cause of the fault has been rectified, the high limit safety
cut-out can be reset by pressing the reset button.
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Cause
Heating element contactor control is faulty.
No power supply to the storage heater.
No power supply at the charge controller.
The high limit safety cut-out (F1) has responded.
The charge control system is incorrectly adjusted.
The charge controller is not working properly.
The transmission of the control signal is interrupted. Check whether the control signal from the charge control sys-
The heating curve is incorrectly adjusted.
The outside temperature sensor is faulty.
The charge controller is transmitting an incorrect
control signal.
Settings for the charge level reducer in the storage
heater.
The fans are not turning.
The fluff filter in the air intake is clogged.
The room temperature sensor is faulty.
The core temperature sensor is faulty.
The DC control signal is corrected to the wrong poles. Check the DC control signal connection.
1
remedy
Check the heating element contactor control.
Check the fuse/MCB in the main distribution box.
Check the power supply. See chapters "Electrical connection"
and/or "Specification".
Reset the high limit safety cut-out (see chapter "Resetting the
high limit safety cut-out").
Check the charge control system settings.
Check the settings of parameters P14, P15, P17 and P18 in the
configuration menu (see chapter "Installation / Settings").
tem in the storage heater is present.
Check the charge control system settings
Test the outside temperature sensor and replace it if required.
Check the settings of parameters P17 and P18 in the configu-
ration menu (see chapter "Installation / Settings").
Check the charge level reducer settings.
Check:
... the settings of parameter P6 in the configuration menu (see
chapter "Installation / Settings").
... that fan enable is switched on.
... that fan voltage is present in the storage heater.
Clean the fluff filter. See chapter "Cleaning, care and mainte-
nance".
Check whether the air supply is obstructed, e.g. due to thick
carpets.
Check whether the protective temperature controller (N5) in
the air discharge has responded.
Test the room temperature sensor and replace it if necessary.
Test the core temperature sensor and replace it if necessary.
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