Troubleshooting
• During defrost, fan does not normally operate, but there are
some units that have the option to turn it on during defrost.
• The fan will only turn on manually, if the compressor is turned
on.
• Disconnect wire harness from P12 on LPB and inspect
connection for separated pins or broken wire harness.
Replace wire harness if needed.
• Using a Volt Meter to test connections on LPB at P12 ,
Measure across L-1 pin on P-12 connector to (GND). (voltage
will range from 85vac to 125 vac ) If voltage is present
manually turn on Condenser Fan using the Manual on/off
controls in the menus.
• Test for voltage across L1 pin and L2 pin from P-12 connector
(Voltage will range from 208 to 230 vac) depending on
Incoming voltage.
• If voltage is not present ,replace LPB.
• If voltage is present , inspect wire harness to Condenser Fan
motor. If Condenser Fan harness checks out good, problem
could be within the Fan or Capacitor .
49
GND L-1 L-2
Condenser fan
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