ubbink UWA-2E - Page 28

Fault
code
Sub
code
Cause
Appliance
action
User action
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 sll occurs replace
UWA2-B
Fault is automacally reset when voltage is again put back on
appliance
E120 E2100 EBus fault; general fault
message
Air Control and
other accessories
connected to
eBus do not
work. Appliance
is working
Check wiring to accessories/ Air Control
Check accessories/ Air Control and replace if defecve
If there is sll a fault aer this: Take voltage from appliance
and replace basic pcb UWA2-B
E121 E2200 external Bus general fault
message
Air Control and
other accessories
do not work.
Appliance is
working
Check wiring to accessories/ Air Control
Check accessories/ Air Control and replace if defecve
If there is sll a fault aer this: Take voltage from appliance
and replace basic pcb UWA2-B
E122 E2300 Internal ModBus fault;
general fault message
Appliance goes
to standby
Check wiring and connecons to UWA2-B and the fans
Replace cable harness if damaged; Then exchange UWA2B,
exhaust fan and supply fan
E123 E2400 External ModBus fault;
general fault message
Operaon via
Modbus does not
work
Check cabling of accessories; replace if damaged
Check accessories; replace if defecve
If fault sll occurs: Take voltage from appliance and replace
UWA2-B basic pcb
E124 E2500 USB port general fault
message
USB interface not
usable
Replace USB accessory
If the fault is not remedied aer this: take the voltage from
the appliance and replace UWA2-B basic pcb
E170 E2600 One or more CO
2
sensor(en) defecve;
general fault message
Appliance is
working; no CO
2
regulaon
Check cabling and CO
2
sensor(s); replace if damaged
Check CO
2
sensor(s); replace if defecve
E171 E2700 External preheater or
fuse defecve; general
fault message
No preheater /
comfort control
responds
dierently
Uncouple preheater and check preheater fuse; replace fuse if
defecve
Has the fault not yet been remedied:
Replace external preheater
Put voltage back on appliance
Fault has automacally been reset
E172 E2800 External postheater or
fuse defecve; general
fault message
No postheater /
comfort control
responds
dierently
Uncouple postheater and check postheater fuse; replace fuse
if defecve
Has the fault not yet been remedied:
Replace external postheater
Put voltage back on appliance
Fault has automacally been reset
Ubiflux Vigor W325 615743-G