mundoclima 2022 Manuel page 70

SERIES: MULTISPLIT - H3M MULTISPLIT - H3M
UNITS: MUCSR-H3M
MUSTR-H3M
MUCR-H3M
LED
Error code
Run Cooling
b5 / B5 19 blinks
b7 / B7 22 blinks
F0 10 blinks
F1 1 blink
F2 2 blinks
F3 3 blinks
F4 4 blinks
F5 5 blinks
E1 1 blink
E2 2 blinks
E3 3 blinks
E4 4 blinks
E6 6 blinks
E7 7 blinks
E8 8 blinks
E9 Continuous
dd Continuous Continuous
Fo Continuous Continuous
P0 3 blinks 3 blinks
P5
P6 16 blinks
P7
P8
P9 3 blinks 3 blinks
Pc 3 blinks 3 blinks
Pd 3 blinks 3 blinks
PA 3 blinks 3 blinks
PE 3 blinks 3 blinks
PF 3 blinks 3 blinks
PL 3 blinks 3 blinks
PH 3 blinks 3 blinks
PP 3 blinks 3 blinks
PU
H1
Continuous
H3
H5
H7
Hc
L9 20 blinks
Lc
Ld 3 blinks 3 blinks
LE 3 blinks 3 blinks
LF 3 blinks 3 blinks
A5 3 blinks 3 blinks
A7 3 blinks 3 blinks
En 3 blinks 3 blinks
EU 6 blinks
F6 6 blinks
F8 8 blinks
F9 9 blinks
FH 2 blinks
HE
LP 19 blinks
U1
U3
dn 3 blinks 3 blinks
(CL20810-838)
(CL20824-826)
(CL20830-833)
(CL20834-838)
Heating
Open circuit or short circuit in the temperature sensor, outdoor unit liquid valve RTxx (20k )
Open circuit or short circuit in the temperature sensor, outdoor unit gas valve RTxx (20k )
Lock or leakage protection in the refrigerant circuit
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 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
High pressure protection
Antifreezing protection
Low pressure protection (reserved)
High temperature protection in the compressor discharge
Communication malfunction between indoor and outdoor
Operation mode mismatch (there are indoor units for heating and cooling at the same time)
Overload protection
Continuous High level of condensates malfunction in the indoor unit
Continuous Test mode operation
Refrigerant recovery mode
3 blinks IPM module reset (inverter)
15 blinks Compressor overcurrent protection
Communication malfunction between IPM module (inverter) and main PCB
18 blinks Open circuit or short circuit in the indoor unit IPM module room temperature sensor (inverter)
19 blinks High temperature protection in the heat sink
3 blinks Contactor protection AC
3 blinks Current sensor fault
3 blinks Protection in the sensor connection
3 blinks AC protection
3 blinks Temperature protection in the "Drift"
3 blinks High temperature protection in IPM module (inverter)
3 blinks Low voltage protection
3 blinks High voltage protection
3 blinks AC power input malfunction
17 blinks Charge circuit fault
1 blink Oil return program in heating or defrost
Forced defrost
3 blinks High temperature protection in the compressor
5 blinks IPM module protection (inverter)
7 blinks Compressor desynchronization
6 blinks PFC module protection
High voltage protection
11 blinks Compressor starting fault
3 blinks Loss phase
3 blinks Compressor blockage
3 blinks Speeding
3 blinks Open circuit or short circuit in the pipe temperature sensor (inlet) (20k ) RT2 outdoor unit
3 blinks Open circuit or short circuit in the pipe temperature sensor (outlet) (20k ) RT2 outdoor unit
3 blinks Frequency limitation / module wear due to protection circuit
6 blinks Frequency limitation / module wear due to temperature protection
Frequency limitation / wear due to overload
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
14 blinks Compressor degaussing protection
Mismatch between indoor and outdoor unit
12 blinks Compressor phase detection circuit malfunction
20 blinks Malfunction due to power drop in bus DC
3 blinks Faulty cable connection or bad electronic expansion valve operation
TROUBLESHOOTING
Description
70
EN