Error Codes - Rotex RKHBRD011AAV1 Manuel D'installation

Error codes

When a safety device is activated, the user interface LED will be
flashing, and an error code will be displayed.
A list of all errors and corrective actions can be found in the table
below.
Reset the safety by pushing the y button.
In case this procedure for resetting the safety is not successful,
contact your local dealer.
Error
code Failure cause
Failure of writing memory
A1
(EEPROM error)
Malfunction of pump in water
A6
circuit (M1P)
R410A expansion valve error
A9
(K1E)
Capacity error
AJ
Bad ACS communication
C1
R410A liquid thermistor error
C4
(R3T)
Domestic hot water tank
C5
thermistor error (R2T)
Returning water thermistor error
C9
(R4T)
Leaving water thermistor error
CA
(R5T)
Remote controller thermostat
CJ
thermistor error
Compressor PCB error
E1
High pressure error (S1PH)
E3
Thermal cut-out error (Q2L)
E3
Low pressure error (B1PL)
E4
Overload activation of
E5
compressor (M1C)
R134a expansion valve error
E9
(K2E)
Discharge temperature error
F3
Discharge thermistor error (R6T)
J3
R134a liquid thermistor error
J5
R134a high pressure sensor
JA
error (B1PH)
R134a low pressure sensor error
JC
(B1PL)
Compressor inverter PCB error
L1
Fin thermistor error
L4
Compressor inverter PCB error
L5
Compressor inverter PCB error
L8
Compressor inverter PCB error
L9
RKHBRD011~016AAV1+Y1
Indoor unit for air to water heat pump system
4PW55786-1
Corrective action
Contact your local dealer.
• Make sure waterflow is
possible (open all valves in the
circuit).
• Force clean water through the
unit.
• Check wiring connections.
• Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
• Check wiring connections.
• Check if the domestic hot
water option is turned active
(refer to field setting [6-00].
• Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
• Check wiring connections on
outdoor unit and indoor unit.
• Make sure the circuit is filled
with water (no air inside)
• Make sure the domestic hot
water tank is filled with water.
• Make sure water flow is
possible (open all valves in the
circuit).
• Make sure the water filter is
not blocked.
• Make sure all refrigerant stop
valves are open.
• Contact your local dealer.
• Reset the thermal cut-out.
• Contact your local dealer.
• Check wiring connections on
outdoor unit and indoor unit.
• Contact your local dealer.
Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Error
code Failure cause
Inverter communication problem
LC
Converter error
LH
Main compressor PCB error
P1
Bad combination inverter
PJ
components
Power supply error
U2
QA transmission problem
U4
Remote controller error
U5
Type connection problem
UA
Address duplication error
UC
Transmission problem with
UF
outdoor unit
QA wiring problem
UF
Address error
UH
Corrective action
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
• Check wiring connections.
• Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
• Wait till initialisation between
outdoor unit and indoor unit is
finished (after power ON, wait
at least 12 minutes).
• Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Contact your local dealer.
Installation manual
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