MrCool DIY-MULTI2-18HP230C, Service Manual

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 Troubleshooting 25 
Part requiring
replacement
Error Code
EC 51 EC 56
EC 07
/
(O)
EC 71
PC 08
/ (O)
PC
44/ PC 46/ PC
49
PC 00
/
PC
04
PC 01
/ (O)
PC 10
/
PC
11
/
PC 12
(O)
PC 0F
Outdoor PCB
Outdoor fan motor x x x x
T3 Sensor x x x x x x x
T4 Sensor x x x x x x x
TP Sensor x x x x x x x
T2B Sensor x x x x x x
Reactor or inductance x x x
Compressor x x x x x x
IPM module board x x x x
Bridge rectifier x x x x
PFC module x x x x x x
Additional refrigerant x x x x x x x
Electric control box x x x x x x x
High pressure switch x x x x x x x
Low pressure switch x x x x x x x