Personal Protective Equipment - STIEBEL ELTRON LWZ 130 Bedienung Und Installation

INsTALLATIoN
Troubleshooting
15. Troubleshooting
WARNING Electrocution
Disconnect the power supply by unplugging the appli-
ance from the mains before carrying out work inside
the appliance.
Fault
--- No fault present
E8 No humidity value for the
extract air
E10 No temperature value for the
extract air
E11 No temperature value for the
outdoor air
E16 The condensate float switch
has responded.
E17 Outdoor air temperature
sensor short circuit
E18 Outdoor air temperature
sensor lead break
E101 Supply air fan
E102 Exhaust air fan
E105 Maximum outdoor air tem-
perature exceeded
E201 No RTC communication (RTC
= real-time clock)
E202 No RTC pulse
E203 Sensor voltage incorrect
E204 Supply air shutdown
E205 Maximum outdoor air tem-
perature exceeded
If fault E16 is displayed, faults E101 and E102 are also displayed
in the fault memory.
16. Disposal
Removal
WARNING Electrocution
Disconnect the appliance from the power supply.
The following tools are required for disassembly and material
separation prior to disposal:

- Personal protective equipment

- Set of screwdrivers
- Set of spanners
- Combi pliers
- Stanley knife
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Effect
The unit cannot provide humidity protection.
Passive cooling is not possible. Manual activation of passive cooling
with options 0 and 1 of parameter P3 is possible.
Passive cooling is not possible. Manual activation of passive cooling
with options 0 and 1 of parameter P3 is possible.
The unit switches off the fans.
No control to the comfort temperature required for passive houses of
at least 16.5 °C in the supply air
No control to the comfort temperature required for passive houses of
at least 16.5 °C in the supply air
The unit does not receive any speed feedback from the fan. There is no
effect on the flow rate control mode.
The unit does not receive any speed feedback from the fan. There is no
effect on the flow rate control mode.
The high limit safety cut-out may respond.
Time-dependent program sequences are disrupted.
Time-dependent program sequences are disrupted.
The unit controls the fans with the maximum value of the currently set
fan stage. The unit cannot provide humidity protection. Automatic pas-
sive cooling is not possible. Manual activation of passive cooling with
options 0 and 1 of parameter P3 is possible.
If the supply air temperature falls below 5 °C, the fan is switched off.
The high limit safety cut-out may respond.
Remedy
Isolate the appliance from the power supply. Check the
sensor cable. Replace the sensor.
Isolate the appliance from the power supply. Check the
sensor cable.
Isolate the appliance from the power supply. Check the
sensor cable.
Check the condensate drain. Check the cable for break-
ages.
Isolate the appliance from the power supply. Check the
sensor cable.
Isolate the appliance from the power supply. Check the
sensor cable.
Isolate the appliance from the power supply. Check
the cabling. Check the PWM control signal that the
electronic assembly sends to the fan. Check the speed
signal that the fan sends to the electronic assembly.
Replace the fan.
Isolate the appliance from the power supply. Check
the cabling. Check the PWM control signal that the
electronic assembly sends to the fan. Check the speed
signal that the fan sends to the electronic assembly.
Replace the fan.
Isolate the appliance from the power supply. Check the
air flow rate. Check the triac for continuity. Check the
sensor cable.
Isolate the appliance from the power supply. Replace
the electronic assembly.
Isolate the appliance from the power supply. Replace
the electronic assembly.
Isolate the appliance from the power supply. Check the
sensor voltage after disconnecting one of the following
sensor plugs: X15, X16, X23, X24. Replace the sensor.
Replace the electronic assembly.
Check the preheating coil. Check the triac for continuity.
Isolate the appliance from the power supply. Check the
triac for continuity. Check the sensor cable.
LWZ 130 | 47