Coil 2 (Eev) Error - Fujitsu Airstage VR-II Series Service Manual

Trouble shooting 58
OUTDOOR UNIT Error Method:

Coil 2 (EEV) Error

Detective Actuators:
Main PCB
Forecast of Cause :
1. EEV2 coil loose connection
3. Defective EEV2 coil
Check Point 1 : Check the connection of EEV connector
Check if the connector CN117 is loose connection or not.
OK
Check Point 2 : Check the EEV wire
Check if the wire of EEV2 has damage or not.
(Slash, Braking of wire, Pinching, etc.)
OK
Check Point 3 : Check the EEV Coil
Check if the circuit of EEV2 coil winding is good or not.
(Refer to the service parts information 16.)
OK
Check Point 4 : Check the output of EEV on the Main PCB
Check if the DC12V is on between the Pin No.1 of CN117 and Pin No.2 of CN132 (GND).
(Disconnect the wire of EEV2 when you check the output of EEV2)
OK
Check Point 5 : Noise, momentary open, voltage drop
Check if temporary voltage drop was not generated.
Check if momentary open was not generated.
Check if ground is connection correctly or there are no related cables near the power line.
Indicate or Display:
E9A.2
Outdoor Unit : E. 9 A. 2
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Error Code
Detective details:
Coil 2(Expansion valve 2) driver circuit open detected.
2. EEV2 wires cut or pinched.
4. Main PCB (DC12V) output abnormal
Filter LED Continuous Flash.
: 9 U / 9A
Replace EEV2 Coil
NG
Replace EEV2 Coil
NG
NG
Replace Main PCB
04-67