Fujitsu AMUG36LMAS

Cooling operation
OK
OK
OK
OK
OK
Heating operation
"Protection stop by
"discharge temperature≥ 239°F (115°C)
during compressor operation"
generated 2 times within 24 hours.
Check Point 1 : Check if 3-way valve(gas side) is open.
Discharger thermistor characteristics check
(Check by disconnecting thermistor from PCB)
Check Point 4 : Check the discharge thermistor
EEV open?
Strainer clogging check
(before and after EEV, ACM, oil return)
Check Point 3 : Check the outdoor unit fan,heat-exchanger
Check for foreign object at heat exchanger
Check if fan can be rotated by hand.
Motor check
(Parts information 4)
Check Point 2 : Check the EEV, strainer
Check Point 5 : Check the refrigerant amount
Leak check
EEV open?
Strainer clogging check
(before and after EEV, ACM, oil return)
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.
03-40
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
1. 3-way valve not opened
2. EEV defective, strainer clogged
3. Outdoor unit operation failure, foreign matter on heat-exchanger
4. Discharge temperature thermistor failure
5. Insufficient refrigerant
Detective details:
Discharge temperature thermistor
Detective actuators:
Forecast of cause:
Troubleshooting 29
Discharge temperature error
Indicate or Display:
Indoor unit
Operation lamp: 10 times Flash,
Timer lamp : 1 time Flash
Wired remote control
Error code : [E : A1]
n
: n times blinking
: Light ON: Light OFF
Mode Error
2 10
1
Outdoor unit (AOUG36/48LMAS1)
(Parts information 3) (Parts information 3)
refer to the "Troubleshooting 18".
A B FEDC
(36/48 models 230°F (110°C))