24
A42
Discharge
temperature 1
fault
Excessive compressor discharge
temperature or system blockage
or lack of gas
Check the sensor reading and the
cooling circuit
Reconnect or change the sensor
A43
Discharge
temperature 2
fault
Excessive compressor discharge
temperature or system blockage
or lack of gas
Check the sensor reading and the
cooling circuit
Reconnect or change the sensor
A44
Deviation between
water inlet sensor
and water outlet
sensor
Deviation between water inlet
temperature and water outlet is
too large
Check that the flow rate is sufficient
A46
A46
Low outdoor air
temperature
The outdoor air temperature is
below the defined limit.
Check the sensor reading and the
minimum outdoor air temperature.
A47
A47
Fan thermal
protection
Excessive consumption of the fan
Check the fan
A51
A51
Compressor
protection
deactivated
Contactor activated or
deactivated on ON
Check the contactor or replace it
A52
Phase imbalance Power cut
Check the electrical connections
A91
Phase checking
Incorrect phase connection, or
lack of voltage
Check the electrical connections.
Check the order of the phases.
A92
Lack of phase
One of the phases is powered off Check the electrical connections
A93
Compressor
1 excessive
consumption
Excessive consumption in
compressor 1
Check the power supply and voltage.
A94
Compressor
2 excessive
consumption
Excess consumption in the
compressor 2
Check the power supply and voltage.
A99
Operating time
limit fault
Operating time exceeded
Check the operating time.
---
- -
Screen failure
Communication failure between
the electronic board and the
display panel
Check the connections and terminals
between the display panel and the main
circuit.
Check the display panel.
Check the electronic board.
Summary of Contents for WH000456
Page 2: ......
