en
6 Troubleshooting
Code
Display text
A10.34
SDhwTopZoneD Closed
A10.45
RoomTempZoneA miss
A10.46
RoomTempZoneB miss
A10.47
RoomTempZoneC miss
A10.50
T_DHW top D miss
88
Description
Domestic Hot Water tank top temperature
sensor Zone DHW Closed
Measure of Room Temperature Zone A is
missing
Measure of Room Temperature Zone B is
missing
Measure of Room Temperature Zone C is
missing
Domestic Hot Water temperature sensor top
zone DHW is missing
Solution
Domestic hot water top tem
perature sensor short-circuit
ed:
Bad connection: check the
wiring and connectors
Incorrectly fitted sensor:
check that the sensor has
been correctly fitted
Faulty sensor: replace the
sensor
Room temperature sensor not
detected in zone A:
Room temperature sensor
is not connected: connect
the sensor
Room temperature sensor
is not connected correctly:
connect the sensor correctly
Faulty sensor: replace the
sensor
Room temperature sensor not
detected in zone B:
Room temperature sensor
is not connected: connect
the sensor
Room temperature sensor
is not connected correctly:
connect the sensor correctly
Faulty sensor: replace the
sensor
Room temperature sensor not
detected in zone C:
Room temperature sensor
is not connected: connect
the sensor
Room temperature sensor
is not connected correctly:
connect the sensor correctly
Faulty sensor: replace the
sensor
Domestic hot water tempera
ture sensor not detected in
zone DHW:
Domestic hot water temper
ature sensor is not connec
ted: connect the sensor
Domestic hot water temper
ature sensor is not connec
ted correctly: connect the
sensor correctly
Faulty sensor: replace the
sensor
7747028 - v.01 - 25112019