Daikin Super Multi NX B series User Manual

Si12-308 Troubleshooting
Service Diagnosis 187
5.14 Input Over Current Detection
Remote
Controller
Display
E8
Outdoor Unit LED
Display
A
5
1
1
2
4
3
1
4
4
Method of
Malfunction
Detection
An input over-current is detected by checking the input current value being detected by CT with
the compressor running.
Malfunction
Decision
Conditions

The following CT input with the compressor running continues for 2.5 seconds.
CT input : Above 20 A

The system will be shut down if the error occurs 16 times.

Clearing condition : Continuous run for about 5 minutes (normal)
Supposed
Causes

Over-current due to compressor failure

Over-current due to defective power transistor

Over-current due to defective inverter main circuit electrolytic capacitor

Over-current due to defective outdoor unit PCB

Error detection due to outdoor unit PCB

Over-current due to short-circuit

Daikin Super Multi NX B series Specifications

General

Brand	Daikin
Model	Super Multi NX B series
Category	Air Conditioner
Language	English