54
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Error
Code
Anomaly signalled Cause Hydronic module status / Solution
E 184
Communication
down with outdoor
unit
A signal noties an anomaly due to a communication prob-
lem between the indoor unit and the outdoor unit.
Have the electrical connection
between the units checked (1) (3).
E 185
Communication
alarm
Communication anomaly between P.C.B. and ignition
board.
Have the electrical connection
between the components checked (1)
(4).
E 186
Igniter voltage
anomaly
An anomaly appears on the ignition board. (1) (4).
E 187
Heat pump return
probe anomaly
e board detects an anomaly on the heat pump return
NTC probe.
(1) (3).
E 188
Request with
temperature out of
range
A heating or cooling request is made with an outdoor tem-
perature exceeding the operating limits (Parag. 1.34).
(1) (3).
E 189
Time out alarm with
interface board
If communication between the printed circuit boards is
lost, an anomaly is signalled.
(1) (3).
E 190 Interface board alarm An anomaly is reported on the interface board.
e system does not start (1).
See communication board errors.
E 192
Heat pump ow probe
anomaly
e board detects an anomaly on the NTC heat pump ow
probe.
(1) (3).
E 193
Appliance in test
mode
A signal noties that the appliance is in test mode.
e system continues operating
properly.
E 194 Outdoor unit disabled
A signal noties that the outdoor unit has been disabled
through the appropriate input in the terminal board.
e system continues operating
properly.
E 195
Liquid phase probe
low temperature
anomaly
Too low temperature is detected in the liquid phase.
Check proper operation of the cooling
circuit (1) (3).
E 196
High temperature
block on heat pump
ow
Excessively high temperature is detected in the ow circuit
of the heat pump.
Check the hydraulic circuit (1) (3).
E 197
Interface board
conguration error
An incorrect interface board conguration has been de-
tected.
e system does not start (1)
(1) If the shutdown or fault persists, contact an authorised company (e.g. Authorised Aer-Sales Technical Assistance Centre)
(2) e anomaly can only be veried in the list of errors in the “Information” menu.
(3) e heat pump mode does not start, the heat generator stays active to satisfy the room heating and domestic hot water produc-
tion requests.
(4) e heat generator does not start, the heat pump mode stays active to satisfy the ongoing requests.
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