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PCG4 - Blower Motor Not Running

Article ID: 336
Last updated: 2 Oct, 2017

Package Unit: PCG4

Re: Blower Motor Not Running

► The PCG4 package units utilize an X-13 style ECM blower motor.


Qty Possible Causes:
1 Bad Blower Motor
Bad Ignition Control Board (ICB)
No Line Voltage

CHECKOUT:

1. Check Power

  • Check inlet power on the contactor.
    • No Power - -> Check Disconnect & Breaker

2. Check Blower Operation

  • Energize a call for "Fan" by turning the Fan Switch "On" at the thermostat or by placing a jumper from "R" to "G"
  • Check for 24VAC on the control board from "24V Com" to "G Spd".
    • No Voltage = Bad Control Board
    • Voltage Present + No Fan Operation = Bad Motor or Loose Plug --> Check Plug
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Article ID: 336
Last updated: 2 Oct, 2017
Revision: 4
Access: Public
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