Fujiiryoki Premium 4S - Page 12

２．２ Air function does not work.
Pump is working.
Insert the connector firmly.
Malfunction of main circuit
board.
Replace the main circuit board.
Is the voltage out on the connector of
main circuit board CN10 (for pump
power supply)?
(Voltage is changed by operation mode.)
Replace the pump.
Is the lead wire of pump firmly inserted
into the connector of main circuit
board(CN10)?
Replace the relay board.
No
Y
es
Y
es
No
Y
es
No
Exchange the 6P cord for
relay board.
Insert the connector firmly.
Insert the connector firmly.
Is the 6P cord for relay board cut?
Is the 6P cord firmly inserted into the connector of relay board CN6
and the connector of main circuit board CN23､CN22､CN3?
Check if the connecting position is correct.
(CN3 is not used for Premium 4.0
)
Is the lead wire of each electromagnetic valve unit firmly inserted into the
connector of relay board CN1-5?
Y
es
No
No
Y
es
Y
es
Replace the main circuit board.
Is DC12V(approx..) out between GN pin #1 and #2-6 of the connector of
main circuit board(Connector for the relay board CN23, CN22, CN3)?
(Check with the tester)
(CN3 is not used for Premium 4.0)
No
Y
es
Replace the electromagnetic
valve unit after checking
ventilation flue.
No
Is each electromagnetic valve working?
Y
es
Replace the electromagnetic
valve unit.
Is the plunger of each electromagnetic valve unit working?
Check if the moving sound could be heard.
Y
es
No
No
Replace the electromagnetic
valve unit.
Is DC12V(approx..) out on the connector of relay board CN1～5?
(Check with the tester when each
p
art is o
p
erated.)
Y
es
No
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