Daikin 4MXS36NMVJU Service Manual

Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series SiUS121630EA
136 Service Diagnosis
5. Troubleshooting for CTXG, CTXS, FTXS, CDXS,
FDXS, FVXS Series
5.1 Indoor Unit PCB Abnormality
Error Code
A1
Method of Error
Detection
The system checks if the circuit works properly within the microcomputer of the indoor unit.
Error Decision
Conditions
The system cannot set the internal settings.
Supposed
Causes

Wrong models interconnected

Defective indoor unit PCB

Disconnection of connector

Reduction of power supply voltage

Daikin 4MXS36NMVJU Specifications

General

Model	4MXS36NMVJU
Category	Air Conditioner
Heating Seasonal Performance Factor (HSPF)	4.0
Number of Connectable Indoor Units	4
Seasonal Energy Efficiency Ratio (SEER)	6.0
Refrigerant	R32
Indoor Units Compatibility	Compatible with various indoor units
Indoor Unit Dimensions (HxWxD)	Varies by model
Indoor Unit Weight	Varies depending on the connected indoor unit model
Operating Temperature (Cooling)	-10 to 46 °C
Operating Temperature (Heating)	-15 to 24 °C
Type	Multi-Split System