Kiwami 4D-970, Руководство по обслуживанию

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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
Yes
Yes
No
Yes
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?
Yes
No
No
Yes
Yes
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)
No
Yes
Replace the electromagnetic
valve unit after checking
ventilation flue.
No
Is each electromagnetic valve working?
Yes
Replace the electromagnetic
valve unit.
Is the plunger of each electromagnetic valve unit working?
Check if the moving sound could be heard.
Yes
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 part is operated.)
Yes
No