mundoclima 2022 Manuel page 71

SERIES: MULTISPLIT - H3M MULTISPLIT - H3M
UNITS: MUCNR-H3M
LED
Error code
Operation Cooling
C5 15 blinks
H6 11 blinks
U8 17 blinks
F1 1 blink
F2 2 blinks
b5 19 blinks
b7 22 blinks
P7
F3 3 blinks
F4 4 blinks
F5 5 blinks
E6 6 blinks
U1
P8
PU
E1 1 blink
H3
dn
dd
E7 7 blinks
Fo 1 blink 1 blink
H1
Lc
E4 4 blinks
E8 8 blinks
E5 5 blinks
P5
H7
Ld
H5
PL
PH 11 blinks
HC
F8 8 blinks
En
F9 9 blinks
FH 2 blinks
F6 6 blinks
EU 6 blinks
F7 7 blinks
E9 9 blinks
E2 2 blinks
(CL20810-838)
(CL20827-829)
Heating
"Jumper terminal" fault
Indoor unit ventilation malfunction
Zero crossing signal detection fault
Open circuit or short circuit in the room temperature sensor (15 ) indoor unit
Open circuit or short circuit in the pipe temperature sensor (inner battery) (20k ) indoor unit
Open circuit or short circuit in the temperature sensor, outdoor unit liquid valve RT5/RT7/RT9/RT11 (20k )
Open circuit or short circuit in the temperature sensor, outdoor unit gas valve RT4/RT6/RT8/RT10 (20k )
18 blinks Open circuit or short circuit in the indoor unit IPM module room temperature sensor (inverter)
Open circuit or short circuit in the outside temperature sensor (15k ) RT2 from outdoor unit
Open circuit or short circuit in the pipe temperature sensor RT1 (20k ) RT2 outdoor unit
Open circuit or short circuit in the discharge temperature sensor RT3 (50k ) RT2 outdoor unit
Communication malfunction between indoor and outdoor
12 blinks Compressor phase detection circuit malfunction
19 blinks High temperature protection in the heat sink
17 blinks Charge circuit fault
High pressure protection
3 blinks Compressor overload protection
Faulty cable connection or bad electronic expansion valve operation
Faulty cable connection or state sensor bad operation in the electronic expansion valve
Operation mode mismatch (indoor units for heating and cooling at the same time)
Refrigerant recovery mode
1 blink Defrost or oil return program in heating mode
11 blinks Compressor starting fault
High temperature protection in the compressor discharge
Overload protection
Overcurrent protection in all unit
15 blinks Consumption protection in a compressor phase
7 blinks Compressor desynchronization
1 phase missing in the compressor / Inverted phase in the compressor
5 blinks IPM module protection (inverter)
21 blinks Low voltage protection in bus DC
High voltage protection in bus DC
6 blinks PFC module protection
Frequency limitation / module wear due to protection circuit
Frequency limitation / module wear due to protection circuit
Frequency limitation / module wear due to protection circuit
2 blinks Frequency limitation / module wear due to antifreezing temperature protection
Frequency limitation / wear due to overload
6 blinks Frequency limitation / module wear due to temperature protection
Oil return program in heating mode
Cold air protection
Antifreezing protection
TROUBLESHOOTING
Description
71
EN