Defrost Error Alarm; Heating Minimum Alarm; Heating Freez.danger Alarm; Invalid Controller Type/Version - ComfortZone RX35 User And Installation Manual

ComfortZone RX35/RX50/RX65
13.25

Defrost error alarm

13.26

Heating minimum alarm

13.27

Heating freez.danger alarm

13.28

Invalid controller type/version

13.29

PL1 input alarm

13.30

Sensor mismatch error TE1-TE2, TE2-TE5, TE1-TE5.

13.31

No compressor function error

Defrosting has not been completed (TE7> about 10 ° C) within
60 minutes.
Troubleshooting:
The error is usually due to the room temperature being too low,
below about 15° C. Then the defrost fails.
Sensor error is another possible explanation. Check TE7.
The flow temperature TE1 is below 3.0° C for 20 minutes. The
alarm can only be triggered during heating operation.
The return temperature TE2 is less than 1.5 ° C for 30
seconds. The temperature is also monitored during hot
water operation.
The text is displayed against the red background at the top of
the display. The alarm buzzer beeps continuously and cannot
be turned off in this mode. The message indicates that the
software in the control card is not compatible with the software
in the display unit.
If the alarm occurs during operation, the display or control card
is faulty
Alt 1. Terminal X3: 11 is accidentally
connected,
Alt 2. Sensor input error X3: 11.
The combination of the two sensor readings is unreasonable.
- There is a sensor error or a poor sensor connection.
- The auxiliary heater may not be working.
The alarm is activated when there is no compressor output power
when the compressor should be running. The compressor is
stopped and all heat is produced using the auxiliary heater.
- The compressor phases may have been switched and the
compressor is running in reverse direction.
- The On/off and 0-10V control signals have been switched on
the inverter.
- A control signal to the inverter has poor connection.
- There is a problem in the refrigerant circuit.
53
service & maintenance