Daikin 2MXS18NMVJU Service Manual

Troubleshooting for Outdoor Unit SiUS121736EA
201 Service Diagnosis
7.16 CT or Related Abnormality
Error Code H8
Outdoor Unit LED
Display
A j 1 i 2 i 3 h 4 h 5 h
Method of Error
Detection
A CT or related error is detected by checking the compressor running frequency and CT-detected
input current.
Error Decision
Conditions
 The compressor running frequency is more than A Hz and input current is less than B A.
 If the error repeats, the system is shut down.
 Reset condition: Continuous run for about 60 minutes without any other error
Supposed
Causes
 Defective power module
 Broken or disconnected wiring
 Defective reactor
 Defective outdoor unit PCB
A (Hz) B (A)
18/24 class 32 0.5
36 class 55 0.5

Daikin 2MXS18NMVJU Specifications

General

Cooling Capacity	5.0 kW
Refrigerant	R-32
Power Supply	220-240V, 50Hz
Number of Connectable Indoor Units	2
Type	Multi Split
Energy Efficiency Ratio (Heating)	11.2 BTU/W
Seasonal Energy Efficiency Ratio (SEER)	6.10
Indoor Unit Noise Level	19 dB(A)
Indoor Unit Dimensions (WxHxD)	Varies depending on the connected indoor unit model
Indoor Unit Weight	Varies depending on the connected indoor unit model