Fujitsu AOTG54LATL User Manual

Refer to error code table.
Compressor Temp. Error
OK
OK
OK
OK
1. 3-way valve not opened
2. EEV defective, strainer clogged
3. Outdoor unit operation failure, foreign matter on heat exchanger
4. Compressor temperature thermistor failure
5. Insufficient refrigerant
Compressor temperature thermistor
Compressor temperature thermistor characteristics check
(Check by disconnecting thermistor from PCB)
* For the characteristics of the thermistor, refer to the "Service Parts Information 8.
Check Point 4 : Check the compressor temperature thermistor
Check Point 3 : Outdoor unit fan, heat exchanger chek
Check for foreign object at heat exchanger
Check if fan can be rotated by hand.
Motor check(PARTS INFORMATION 7)
Check Point 5 : Check the refrigerant amount
Leak check
02-28
<Cooling operation>
OK
<Heating operation>
Check Point 1 : Check if 3-way valve(gas side) is open.
EEV open?
Strainer clogging check (before and after EEV, ACM
oil return)
Refer to "Service Parts Information 3, 4".
Check Point 2 : Check the EEV, strainer
EEV open?
Strainer clogging check (before and after EEV, ACM
oil return)
Refer to "Service Parts Information 3,4 ".
Check Point 2 : Check the EEV, strainer
If the 3-way valve(gas side) was closed, open the
3-way valve(gas side) and check operation.
Check Point 1 : Check if 3-way valve(liquid side) is open.
If the 3-way valve(liquid side) was closed, open the
3-way valve(liquid side) and check operation.
OK
"Protection stop by "compressor tempreture" 112°C during compressor
operation""generated 2 times within 24 hours
Trouble shooting 25
Indicate or Display:
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :

Fujitsu AOTG54LATL Specifications

General

Brand	Fujitsu
Model	AOTG54LATL
Category	Air Conditioner
Language	English