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Fault
In the table below the locking faults are marked with an * after the fault number.
The display shows a brief explanation of this fault code.
If there is reference to the "Standby" mode of the appliance, then both fans are shut down but there is still
something shown on the display of the appliance.
Fault
Sub
code
code
E190
E1000 Self-test not good
E152 *
E1001 * Flash memory faulty
E153
E1002 EEPROM memory
E105
E1011
E104
E1012 Requested exhaust flow
E000 *
E1013 * Temperature of outside
E105 *
E1100 * Supply fan defective;
E104 *
E1120 * Exhaust fan defective;
E103
E1200 Bypass defective;
E106 *
E1300 * Sensor NTC1 defective;
E111
E1400 RHT sensor 1 defective;
E113
E1600 Internal preheater
E114
E1500 Multiple switch
E130
E1800 Relay output 1
E155
E2000 Touchscreen fault;
E120
E2100 EBus fault; general fault
26 | WOLF GmbH
Appliance
Cause
action
No action
Stop appliance if
possible
Appliance goes
defective
to factory setting;
fan setting 2
Requested supply flow
None
rate is not achieved
None
rate is not achieved
Appliance goes
air too high
to standby
Appliance goes
general message
to standby
Appliance goes
general fault message
to standby
None
general fault message
Appliance goes
general fault
to standby
No humidity
general message
control
Frost protection
defective; general fault
goes to
message
imbalance mode
Appliance goes
defective; general fault
to mode 1
Signal output not
defective; general fault
available
Fault codes only
general fault message
visible when
using service
tool
BM-2 and other
message
accessories
connected to
eBus do not
work. Appliance
is working
User action
Replace basic pcb UWA2-B
Replace basic pcb UWA2-B
Clean or replace filters
Check that ducts are not blocked
Clean or replace filters
Check that ducts are not blocked
Depending on the situation:
In the event of warm weather and a supply directly below
the tiles, wait until the air has cooled or install a roof
sleeve instead of duct under the tiles
In the event of cold weather or when there is no air from
below the tiles, take the voltage from the appliance and
replace air temperature sensor (NTC)
Replace supply fan
Fault is reset automatically when voltage is put back on
appliance.
Replace exhaust fan
Fault is reset automatically when voltage is put back on
appliance.
Check wiring
Replace bypass or wiring harness
Check wiring
Replace NTC sensor or replace wiring
Check wiring
Replace RHT sensor or replace wiring
Check fuses
Check wiring; replace if damaged and replace otherwise
the internal preheater
Fault is automatically reset when the voltage is put back
on the appliance.
Replace multiple switch
Take voltage from appliance
Replace UWA2-B pcb
Fault is automatically reset when voltage is again put
back on appliance.
Check wiring to touchscreen; replace wiring
if damaged; replace touchscreen if fault still occurs
replace UWA2-B
Fault is automatically reset when voltage is again put
back on appliance
Check wiring to accessories/ BM-2
Check accessories/ BM-2 and replace if defective
If there is still a fault after this: Take voltage from
appliance and replace basic pcb UWA2-B
xxxx
7100832_202010
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