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Idiomas disponibles
O
PERATING MALFUNCTIONS
Malfunction
The control panel is
blank
Motor is always at
low speed
(low speed)
The motor never
goes to
low speed
(low speed)
Motor is always at
high speed
(normal rate)
The motor never
goes to
high speed
(normal rate)
The heater
hardly heats or does
not heat
The heater
is too hot
Deterioration in
performances
(flow rate falls)
:
Cause
ü
Faulty controller
ü
Controller receiving no power
ü
Daily timer is set to low speed
(the default setting)
ü
Actual date = holiday period
programmed to low speed
ü
System operating in low-speed "post-
ventilation" mode
ü
Daily timer is set to high speed
ü
Daily timer not programmed to low
speed
ü
System in high-speed or boost "post-
ventilation" mode
ü
Daily timer is set to high speed
ü
Actual date = holiday period
programmed to high speed
ü
Boost function is active
ü
System operating in low-speed "post-
ventilation" mode
ü
Daily timer not programmed to high
speed
ü
Actual date = holiday period
ü
Boost function not activated
ü
Unit is badly connected
ü
Setpoint "Sp" is lower than the
temperature measured by "Sp" sensor
ü
Error detected
(Flashing red LED on control panel)
ü
The heater battery safety valve is badly
connected / disconnected
ü
Setpoint "Sp" is higher than the
temperature measured by "Sp" sensor
ü
Error detected
(Flashing red LED on control panel)
ü
The filter clogging valve is badly
connected / disconnected
ü
Error detected
(Flashing red LED on control panel)
Solutions
ü
Check the connection and the condition of the cable
on the controller (connector not clipped on properly,
cable severed or nipped etc.)
ü
Check fuses F1, F2 and F3
ü
Check the unit's supply voltage (attention to neutral
for three-phase models)
ü
Check timers: low speed – holidays
cf: "Settings for operating periods" and "Settings for
holiday periods"
ü
Activate the "boost" function to force the motor into
high-speed for 1 h
ü
Check post-ventilation timer setting
ü
Check timers: low speed, normal speed – holidays
cf: "Settings for operating periods" and "Settings for
holiday periods"
if motor running at high speed:
ü
deactivate the "boost" function
Wait until timer pre-set expires (max. 1 h)
ü
Check timer settings for: normal rate – holidays
"Settings for operating periods" and "Settings for
holiday periods"
ü
Deactivate the boost function. The contact should
be open when idle. Wait until timer pre-set expires
(max. 1 h)
ü
Check post-ventilation timer setting
ü
Check timers: normal rate – holidays
cf: "Settings for operating periods" and "Settings for
holiday periods"
ü
Activate the "boost" function
check connection (contact should be closed if on
demand)
ü
Check the supply voltage (three-phase models)
ü
Check the control panel status (see above if
inactive),
ü
Check values "Act" and "Sp", and position /
connection of the sensor,
ü
If an error is displayed: identify it
(press the red button on the control panel to read the
error message - consult list of errors and
troubleshooting guide)
ü
Check connection and setting of heater battery
safety valve
ü
Check values "Act" and "Sp", and position /
connection of the sensor,
ü
If an error is displayed: identify it
(press the red button on the control panel to read the
error message - consult list of errors and
troubleshooting guide)
ü
Check connection and setting of filter clogging valve
ü
If an error is displayed: identify it
(press the red button on the control panel to read the
error message - consult list of errors and
troubleshooting guide)
cf:
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