Acson A5LC User Manual

ASCON Service Guide Book
82
Fuse for
operation
circuit
Evaporator fan
contactor
Evaporator fan
contactor
Evaporator fan
contactor
Over current
relay for
evaporator fan
By means of diagnostic flows chart:
Generally, there are two kinds of problems, i.e. starting failure and insufficient cooling/ heating.
“Starting failure” is caused by electrical defect while improper application or defects in refrigerant
circuit causes “insufficient cooling/ heating”.
i) Diagnosis of Electric circuit
: Faulty : Check : Cause : Remedy
NO cooling/ heating (Unit fail to start)
Unit Power
supply
Evaporator
fan motor
2 1
No voltage or low voltage
Wrong phase/ missing
phase
Components shorted
Components loose
High or
low voltage
Wrong / missing phase
Coil burned
Contact faulty
Faulty fan motor
Defective operation
Defective operation
Wrong/ missing phase
Get the right voltage
Stop
Repair the power line
Repair or replace the
components
Tighten the connections
Get the right voltage
Check the power supply
to the motor: repair
when necessary
Change the contactor
Repair the contact
Repair or change the
motor
Repair or change the
switch
Get the right voltage
Check the power supply
to the motor: repair
when necessary

Acson A5LC Specifications

General

Brand	Acson
Model	A5LC
Category	Air Conditioner
Language	English