EASEPAL EC-320D Maintenance Service Manual page 27

D：Disconnect all the transformer connecters that connect to the main PCB. Then we can take off the transformer.
( As the pictures below show.)
Locate of transformer wire（When
2 locate of transformer connecters.
Instant back you may use wire connectors）
Transformer has been taken off.
Guidance of disassemble the Air valve.
A: Take off the PCB box cover. And we can see air valve. ( Refer to GUIDANCE OF CHANGE MAIN PCB.)
Locate air valve.
B：Slack and remove the screws fixing the air valve
Locate the screws fixing air valve.