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
code
Sub
code
Cause
Appliance
action
User action
E190 E1000 Self-test not good No action
E152 * E1001 * Flash memory faulty Stop appliance if
possible
Replace basic pcb UWA2-B
E153 E1002 EEPROM memory
defective
Appliance goes
to factory setting;
fan setting 2
Replace basic pcb UWA2-B
E105 E1011 Requested supply flow
rate is not achieved
None Clean or replace filters
Check that ducts are not blocked
E104 E1012 Requested exhaust flow
rate is not achieved
None Clean or replace filters
Check that ducts are not blocked
E000 * E1013 * Temperature of outside
air too high
Appliance goes
to standby
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)
E105 * E1100 * Supply fan defective;
general message
Appliance goes
to standby
Replace supply fan
Fault is reset automatically when voltage is put back on
appliance.
E104 * E1120 * Exhaust fan defective;
general fault message
Appliance goes
to standby
Replace exhaust fan
Fault is reset automatically when voltage is put back on
appliance.
E103 E1200 Bypass defective;
general fault message
None Check wiring
Replace bypass or wiring harness
E106 * E1300 * Sensor NTC1 defective;
general fault
Appliance goes
to standby
Check wiring
Replace NTC sensor or replace wiring
E111 E1400 RHT sensor 1 defective;
general message
No humidity
control
Check wiring
Replace RHT sensor or replace wiring
E113 E1600 Internal preheater
defective; general fault
message
Frost protection
goes to
imbalance mode
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.
E114 E1500 Multiple switch
defective; general fault
Appliance goes
to mode 1
Replace multiple switch
E130 E1800 Relay output 1
defective; general fault
Signal output not
available
Take voltage from appliance
Replace UWA2-B pcb
Fault is automatically reset when voltage is again put
back on appliance.
E155 E2000 Touchscreen fault;
general fault message
Fault codes only
visible when
using service
tool
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
E120 E2100 EBus fault; general fault
message
BM-2 and other
accessories
connected to
eBus do not
work. Appliance
is working
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
Fault
xxxx
26 | WOLF GmbH 7100832_202010