Electrical Box Temperature Rise - Daikin Super multi NX E Series Service Manual

SiBE121135_A

7.17 Electrical Box Temperature Rise

L3
Error Code
Outdoor Unit LED
A
∗ LED5 is equipped only on the 5-room model.
Display
Method of Error
An electrical box temperature rise is detected by checking the radiation fin thermistor with the
Detection compressor off.
Error Decision
Conditions
Supposed
Causes
Service Diagnosis
j i i h i
1 2 3 4
With the compressor off, the radiation fin temperature is above
The error is cleared when the temperature drops below
To cool the electrical components, the outdoor fan starts when the radiation fin temperature
rises above C °C and stops when it drops below
A (°C) B (°C) C
100 70
Defective outdoor fan motor
Short circuit
Defective radiation fin thermistor
Disconnection of connector
Defective outdoor unit PCB
h
5
B
(°C)
85
Troubleshooting for Outdoor Unit
A °C.
°C.
B
°C.
224