Daikin 2AMX40G3V1B User Manual

Troubleshooting for Outdoor Unit SiBE121123_A
201 Service Diagnosis
7.16 Electrical Box Temperature Rise
Error Code
L3
Method of Error
Detection
An electrical box temperature rise is detected by checking the radiation fin thermistor with the
compressor off.
Error Decision
Conditions

With the compressor off, the radiation fin temperature is above A °C.

The error is cleared when the temperature drops below B °C.

To cool the electrical components, the outdoor fan starts when the radiation fin temperature
rises above C °C and stops when it drops below B
°C.
Supposed
Causes

Defective outdoor fan motor

Short circuit

Defective radiation fin thermistor

Disconnection of connector

Defective outdoor unit PCB
Troubleshooting
Check No.17
Refer to P.215
Check No.19
Refer to P.216
A
(°C)
B
(°C)
C (°C)
80 70 75
Caution
WARNING
To cool the electrical components,
the outdoor fan starts when the
radiation fin temperature rises
above
C ˚C and stops when it
drops below
B ˚C.
(R14416)
YES
NO
Slightly dirty
NG
Too dirty
OK
NO
YES
Turn off the power and turn it on
again.
Check the radiation fin
temperature.
Check No. 17
Check the installation condition.
Radiation fin dirty?
Above
A
˚C?
Check No. 19
Check the outdoor fan or
related.
Error again or outdoor
fan activated?
Replace the outdoor unit
PCB.
Replace the fan motor.
Correct the connectors and
fan motor lead wire.
Replace the outdoor unit
PCB.
Clean up the radiation fin.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
A
(°C)
B
(°C)
C (°C)
80 70 75

Daikin 2AMX40G3V1B Specifications

General

Brand	Daikin
Model	2AMX40G3V1B
Category	Air Conditioner
Language	English