REMKO RXT xxx DC - Manual (Page 38)

Fault code
DISPLAY
Fault description Required action
E0 EEPROM error See page 36 / point 1
E2 Communication error between indoor unit and outdoor component See page 36 / point 2
E3 Communication error on outdoor component main board (for RXT 1051 DC and up) See page 37 / point 3
E4 Fault on the outdoor temperature sensor See page 37 / point 4
E5 Compressor overvoltage protection See page 37 / point 5
P0 Compressor overload protection (Klixon) tripped
P1 High pressure fault (from RVD 521 and up) See page 38 / point 6
P2 Low pressure fault (from RVD 521 and up) See page 39 / point 7
P3 Compressor overcurrent protection tripped See page 40 / point 8
P4 Hot gas temperature sensor too high See page 41 / point 9
P5 Condenser outlet sensor triggered See page 41 / point 10
P6 IPM power board safety shutdown See page 42 / point 11
Fault displays shown on the outdoor component
RXT 521-1401DC outdoor component fault analysis
1. Fault code E0: EEPROM error
No Fit EEPROM properly Is the EEPROM
fitted properly?
Yes
Replace outdoor
component main board
2. Fault code E2: communication error between indoor
unit and outdoor component
No Establish the power
supply. Is there voltage in the
indoor unit?
Yes
Use shielded, earthed
cable
Is the connecting cable
shielded, and is it
earthed?
Yes
Is the cable connecting
the indoor unit and
outdoor component
properly connected?
No Connect the cable
properly.
Replace the main board
for the indoor unit or
outdoor component
Yes
Is the cable connecting
the indoor unit and
outdoor component
damaged?
No
Yes Replace the cable.
No
REMKO RXT...DC
38