Carrier AquaSnap 30RB Manuel D'installation page 21

Diagnostic
The electronic control on the machine continuously
monitors its operation. In the event of a malfunction, it
activates a relay whose contact generates a coded alarm
switching on the alarm LED.
Some alarm conditions are automatically reset, others
require the intervention of the operator to search for the
Manual resetting of alarm conditions is performed using the
or opening and closing S1 switch (see electrical
connections page 10).
WARNING:
code according to the instruction reported and remove its
cause.
condition does not reset the unit.
The alarm code generated by a failure, is shown to the
operator one time only, and the unit remains in alarm status.
To have the alarm code shown again, press the ECO button
The following list describes the possible cause for each alarm code:
Description
1 Compressor fault
Leaving water temperature
2
probe fault
Entering water temperature
3
probe fault
5 Air temperature probe fault
6 High pressure transducer fault
11 Low pressure transducer fault
Low refrigerant pressure in the
13
circuit
High refrigerant pressure in the
14
circuit
High pressure safety switch /
15
reverse compressor rotation
16
protection
Repeated attainment of low
21 suction temperature in cooling
(more than six times)
Repeated attainment of high
22 pressure condition in cooling
(more than six times)
26
33 Maintenance service request
on the remote control.
X1 and X2, as follows:
with 1 second intervals until the number corresponding to
the second is reached (only for two-digit codes).
To have the alarm code shown again, press the ECO button
on the remote control.
the alarm code is shown again. To restart the unit, remove
Control
reset
action
Compressor
Manual
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit Automatic/
stopped Manual
Unit
Manual
stopped
Unit
Manual
stopped
Unit Automatic/
stopped Manual
Unit
Automatic
stopped
Unit
Automatic
stopped
Unit
Manual
stopped
Unit
Manual
stopped
1 + 1 + 1=3 1
31
LED on for 1 second
LED off for 1 second
Compressor overheated
Sensor out of range, probe wire interruption or
sensor fault
Sensor out of range, probe wire interruption or
sensor fault
Sensor out of range, probe wire interruption or
sensor fault
Transducer out of range, incorrect transducer
voltage transducer wire interrupted or transducer
fault
Transducer out of range, incorrect transducer
voltage transducer wire interrupted or transducer
fault
Fan fault, coil obstructed, high outdoor air
temperature
The safety pressure switch has not been reset after
the last alarm, incorrect compressor connection
Low water flow rate entering or leaving water
probe fault
in the circuit
High pressure transducer fault high air
temperature, high entering water temperature
Flowswitch tripped or fault, air in the water circuit
-
OFF and
30RB
13