FinishPro 390
ON/OFF Switch Test
Compressor
AA Mode
Airless Mode
Off
Step 1
+ +
Power switch in
the Airless Mode.
Cord plugged in.
Meter on AC Volts
FUSE
F1
J4
Control
Board
110-120 AC
V
--
--
J3
Power switch in
the AA Mode.
Cord plugged in.
Meter on AC Volts
Power switch in
the AA Mode.
Cord plugged in.
Meter on AC Volts
NO
See step 2. Do you have
over 100 AC volts?
YES
See step 1.Do you have
over 100 AC volts?
YES
Check the connector
for the white wires.
If ok repair or replace
the power Cord.
Replace the
power switch.
Switch is good. Proceed to the proper Test Section
NO
See step 3.Do you have
over 100 AC volts?
NO
YES
Replace the
power switch.
Connector
Power
Plug
Compressor
AA Mode
Airless Mode
Off
Step 2
FUSE
F1
J4
Control
Board
110-120 AC
V
--
--
J3
Connector
Power
Plug
Compressor
AA Mode
Airless Mode
Off
Step 3
FUSE
F1
J4
Control
Board
110-120 AC
V
--
--
J3
Connector
Power
Plug
+ +
+ +
Airless Motor will
not sart. See Control
Board Test Section
Compressor Motor will
not sart. See Compressor
will not start Test Section.
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