Haier GE Vertical Zoneline AZ90E09D C, Техническое обслуживание руководство

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Components Testing
Testing the Diagnostic Service Module
If the Diagnostic Service Module does not
turn on
:
1. Make sure there is 208/230 VAC to the GE
Vertical Zoneline and that it is turned on.
2. Disconnect the diagnostic service module's
wire harness on the control board.
3.
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the left of the female connector (see picture
below). There should be up to 5 VDC.
4. If there is no voltage, replace the electronic
control board.
5. If there is voltage, check the wire harness and
connections at the electronic control board
and the diagnostic service module.
6. If the connections and the wire harness are
good, replace the diagnostic service module.
Diagnostic Service Module
Service Module Connector
Test here up to 5 VDC.
If no voltage, replace board.
If there is 5 VDC, check the connections and
cable. If OK, replace service module.
Back Up Battery (not used)
Service Module Display
Indoor Ambient Sensor