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
Refer to the Troubleshooting 22
)
Check Point 4 : Check the compressor temperature thermistor
Check Point 3 : Outdoor unit fan, heat exchanger check
Check for foreign object at heat exchanger
Check if fan can be rotated by hand.
Motor check(PARTS INFORMATION 5)
Check Point 5 : Check the refrigerant amount
Leak check
02-34
<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 ".
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 "
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 temperature" 110
°C
during compressor
operation""generated 2 times within 24 hours
Trouble shooting 33
Detective Actuators:
Detective details:
OUTDOOR UNIT Error Method:
Forecast of Cause :
Indicate or Display:
Error code : A3
Outdoor unit : No indication
AMP Air Conditioning
www.ampair.co.uk | [email protected]
