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Blower only blows on number four setting - Heating & Cooling

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Speed controler faulty.windings also open cirucit.replace it

Posted on Oct 04, 2009

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Posted on Jan 02, 2017

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The steps please to remove the heater blower motor on a 1995 Park Ave. The check engine light comes on readily when driving or idling. The numerical external temperature/heater temperature setting...


  • Disconnect the negative battery cable.
  • Disconnect the blower motor lead connector from the wiring harness connector.
  • Remove the blower motor cooling tube from the blower motor.
  • Remove the four retaining screws.
  • Turn the motor and the wheel assembly slightly to the right so that the bottom edge of the mounting plate follows the contour of the wheel well splash panel.
  • Lift up on the blower and remove it from the blower housing.
  • Installation the new blower motor by reversing the removal steps.
  • Connect the negative battery cable.
  • Jan 02, 2011 | 1995 Buick Park Avenue

    2 Answers

    Coleman Presidential II Model 7656A Mobilehome Furnace blower p


    have you changed t-stat? if so you need to increase the heat anticipator. if you have a fan limit switch, the setting may need adjusting. Thay will change with age

    Nov 01, 2009 | Heating & Cooling

    1 Answer

    Blower motor doesn't blow anymore, This blows


    If it blows only on high speed, it is the resister.
    If it does not work at all, check fuses first. See owner manual for location.
    Then check blower motor by jumping 12 volts from battery to blower motor. Make sure ground is jumped too.

    If it works now, it's the control panel. If not, it is the motor.

    Blower Motor —Front Removal and Installation
    1. Prepare the vehicle for blower motor (19805) removal.
      1. Disconnect the battery ground cable (14301). For additional information, refer to Section 414-01 .
      1. Remove the air cleaner assembly. For additional information, refer to Section 303-12 .
    1. Detach the speed control servo.
      1. Disconnect the electrical connector.
      1. Remove the bolt.
      1. Position the speed control servo aside.
    1. Position the coolant expansion tank/windshield washer reservoir aside.
      1. Remove the screws and the nuts.
      1. Position the coolant expansion tank/windshield washer reservoir aside.
    1. Remove the blower motor.
      1. Disconnect the vent hose.
      1. Disconnect the electrical connector.
      1. Remove the four screws.
      1. Remove the blower motor.
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    Also,

    Heater Blower Motor Switch Resistor(s)
    The front heater blower motor switch resistor has the following features:
    • The assembly is located in the engine compartment on the evaporator housing (19850) next to the blower motor assembly (19805).
    • Three resistor elements are mounted on the resistor board to provide four blower motor speeds.
    • Depending on the heater blower motor switch position, series resistance is added or bypassed in the A/C blower motor circuit to decrease or increase A/C blower motor speed.
    • An overheating device (thermal limiter) will open the resistor coil circuit when the temperature reaches 121°C (250°F), interrupting the blower motor operation in all speeds except high.
    • The thermal limiter cannot be reset and is not serviceable.

    Aug 10, 2009 | 2001 Ford Explorer Sport

    1 Answer

    Blower only blows on high not on any other setting


    if you locate blower motor wires test for voltage on lower fan speeds if no voltage re rmove the blower motor resistor and look for open or burn marks on it its usally located near the blower motor it will have three or four wires going to it.

    Jun 21, 2009 | 2003 Kia Sorento

    1 Answer

    Furnace blower blows cold air


    It is possible that you did not set the new blower on the proper speed. Black wire is high. Blue is medium. Red is low. If the fan is operating to slow it can run to hot and trip the high limit control. Make sure the filters are clean. When the old motor went bad, the problem might not have been discovered rite away your high limit control might need to be changed.
    Also anytime you work on a furnace you can kick up some dust. Always clean the flame sensor.
    Good Luck
    HVAC Teacher

    Mar 08, 2009 | Honeywell Power Humidifier: Furnace...

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