Alarm
6 720 643 415 (2010/03)
28
11.7.12 High flow temperature E1x.T1
Function: Compressor stops. Activated when the
temperature in the heating circuit becomes too high in
relation to the settings that are made.
Alarm timer starts: Yes.
Reset condition: The sensor's value falls below the
temperature for beginning of the heating demand.
Category: E.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
B Lower the heating on the circuit.
B Check that the thermostat valves are open.
B Contact the dealer if the alarm recurs often.
11.7.13 Faulty electric heater E21.E2
Function: The electric heater is turned off. Activated by
triggered overheat protection on the electric add. heat,
high flow temperature or too high temperature in the
electric add. heat.
Reset condition: Overheat protection reset or the
temperature has fallen.
Category: F.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
B Reset the overheat protection if it has tripped.
B Contact the dealer if the alarm remains after
acknowledgement.
11.7.14 Overheat protection tripped hot water electric
heater
Function: The electric heater is turned off. If alarm
output from the electric heater has been connected to
the control unit, the alarm is given when an error occurs.
Reset condition: The error in the electric heater has
been overcome and no alarm signal.
Category: F.
Alarm lamp/buzzer: Yes.
Restart: Acknowledgement is required.
B Contact the dealer if the alarm remains after
acknowledgement.
11.7.15 Failure on sensor E31.T32 anti-freeze cooling
Function: The mixing valve in the collector circuit is
closed. Activated when the sensor's value indicates a
temperature lower than -10 °C. The sensor is used in
certain cooling applications and is placed in the
collector circuit for cooling to prevent the heat
exchanger from freezing.
Reset condition: The value of the sensor indicates >
-10 °C.
Category: G.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
B Contact the dealer if the alarm remains active for
more than three hours or recurs often.
11.7.16 Short circuit on sensor E31.T32 anti-freeze
cooling
Function: The mixing valve in the collector circuit is
closed. Activated when the sensor's value indicates a
temperature higher than 30 °C. The sensor is used in the
collector circuit for cooling in order to prevent the heat
exchanger from freezing.
Reset condition: The value of the sensor indicates <
30 °C.
Category:
G.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
B Contact the dealer if the alarm remains active for
more than three hours or recurs often.
11.7.17 Error dew point sensor E1x.TM
Function: Cooling on current mixing valve is aborted.
Activated when the signal from the sensor deviates from
its normal operating range. The alarm may appear after
a power failure but the alarm cause normally disappears
automatically and the only thing that has to be done is to
acknowledge the alarm.
Reset condition: The sensor's signals return to the
normal operating range.
Category: G.
Alarm lamp/buzzer: Yes.
Restart: Automatic once the alarm cause has
disappeared.
B Contact the dealer if the alarm remains active for
more than three hours or recurs often.
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