Air blower WPN - 1992 Honda Civic

There are several possible reasons why your blower, vent, defrost, AC, and heater might stop blowing air:

1. Blower Motor Failure: The blower motor is responsible for blowing the air through the vents. If the blower motor fails, you will not get any airflow from the vents.
2. Blower Motor Resistor Failure: The blower motor resistor controls the speed of the blower motor. If the resistor fails, the blower motor may stop working or only work at one speed.
3. Fuse or Relay Failure: A blown fuse or faulty relay in the blower motor circuit can prevent the blower motor from working.
4. Control Module Failure: The HVAC (heating, ventilation, and air conditioning) control module is responsible for controlling the blower motor and other components. If the control module fails, it can prevent the blower motor from working.
5. Vacuum Leak: If your vehicle uses a vacuum system to control the vents, a vacuum leak can prevent the system from working properly.
6. Broken Blend Door: The blend door controls the direction of the airflow. If the blend door breaks or gets stuck, the air may not flow through the correct vents.
7. Wiring or Connector Issues: Faulty wiring or connectors in the blower motor circuit can prevent the blower motor from working.

a Volvo (must we guess"?) 2010 xc 60???? no air jumper-ed too?
if yes controls bad.
but with all blend door motors dead, air will flow.
there is no blower blocking door/damper ( but Filter)?
no air flows? means what?
hot air?
cold air?
either?
or no ambient air flows. or all.above.?

most cars have at least 3 dampers
MODE (direction)
hot cold, manual control.
recir'/fresh.

case in point, if hot core and AC core are dead
and blower spins you still get ambient cab air flow or fresh.
cab filter clogged up.
I need more facts to know what tests to do.

https://eautorepair.net/Marketing/Default.asp

Not sure which fan you mean. Engine cooling fan is different from heat/air blower fan.

NOTE: The blower motor is located on the passenger side of the vehicle under the instrument panel. The blower motor can be removed from the vehicle without having to remove the HVAC housing.

1. Disconnect and isolate the negative battery cable.
2. Remove the passenger side cowl trim panel. See: Body and Frame\Interior Moulding / Trim\Trim Panel\Service and Repair\Cowl Trim
3. Pull back the carpet to access the front upper screw that secures the air inlet housing.
4. Remove the recirculation door actuator.
5. Remove the recirculation door actuator wire lead from the routing clip located on the lower air inlet housing and position the wire lead aside.
6. Disconnect the blower motor wire lead connector from the blower motor resistor or power module, depending on application.

Lower Air Inlet Housing

1. Remove the one screw (from the top) that secures the lower air inlet housing to the upper air inlet housing.
2. Remove the four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and remove the lower HVAC housing.

Blower Motor Wire Lead Grommet

1. Push the rubber blower motor wire lead grommet through the opening in the lower air inlet housing.
2. Feed the blower motor wire lead through the opening in the lower air inlet housing and remove the lower air inlet housing from the vehicle.
3. Position the recirculation-air door as necessary to access and remove the three screws that secure the blower motor to the lower half of the HVAC housing.
4. Gently flex the recirculation air door far down enough to remove the blower motor and wheel from the HVAC housing.

Blower Motor Mounting Tabs

1. Remove the blower motor and wheel from the HVAC housing. Note the position of the blower motor mounting tabs.

INSTALLATION

Blower Motor Removal & Installation Front To Remove:
NOTE: The blower motor is positioned on the passenger side of the vehicle beneath the instrument panel, and can be removed from the vehicle without removing the HVAC housing.

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Remove or disconnect the following:
   • Negative battery cable
   • Passenger side cowl trim panel
   • Carpet to access the front upper screw that secures the air inlet housing
   • Recirculation door actuator
   • Recirculation door actuator wire lead from the routing clip located on the lower air inlet housing and position the wire lead aside
   • Blower motor wire lead connector from the blower motor resistor or power module, depending on application. Lower Air Inlet Housing
     
     
   • One screw (from the top) that secures the lower air inlet housing to the upper air inlet housing
   • Four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and remove the lower HVAC housing Blower Motor Wire Lead Grommet
     
     
3. Feed the rubber blower motor wire lead grommet through the opening in the lower air inlet housing.
4. Push the blower motor wire lead through the opening in the lower air inlet housing and remove the lower air inlet housing from the vehicle.
5. Place the recirculation-air door as needed to access and remove the three screws that secure the blower motor to the lower half of the HVAC housing.
6. Lightly bend the recirculation air door far enough down to remove the blower motor and wheel from the HVAC housing. Blower Motor Mounting Tabs
   
   
7. Remove the blower motor and wheel from the HVAC housing. Make a note of the location of the blower motor mounting tabs.

To Install:

1. Install or connect the following:
   • Blower motor and wheel to the lower half of the HVAC housing and line up the blower motor mounting tabs to the correct location on the HVAC housing
   • Blower motor and wheel into the HVAC housing by lightly bending the recirculation-air door far enough down
   • Three screws that secure the blower motor to the HVAC housing by positioning the recirculation-air door as needed
     1. Torque to: 17 inch lbs. (2 Nm)
   • Blower motor wire lead through the opening in the lower air inlet housing and seat the rubber grommet into the lower air inlet housing
   • Recirculation-air door pivot into the lower air inlet housing
   • Four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and the lower HVAC housing
     1. Torque to: 17 inch lbs. (2 Nm)
   • One screw (from the top) that secures the lower air inlet housing to the upper air inlet housing
     1. Torque to: 17 inch lbs. (2 Nm)
   • Blower motor wire lead connector to the blower motor resistor or power module, depending on application
   • Recirculation door actuator wire lead into the routing clip located on the lower air inlet housing
   • Recirculation door actuator
   • Carpet
   • Passenger side cowl trim panel
   • Negative battery cable
2. Perform the heater-A/C control calibration procedure.

Rear To Remove:
NOTE: The rear blower motor and blower wheels are repaired only as a balanced unit. The entire blower motor and wheel assembly must be replaced if either component is fault or damaged.

1. Before servicing the vehicle, refer to the precautions at the beginning of this section.
2. Remove or disconnect the following:
   • Front center floor console cover
   • Negative battery cable Rear Blower Motor Housing
     
     
   • Body wire harness connectors from the rear blower motor power module and the rear mode door actuator
   • Body wire harness bracket from the console support bracket
   • Eight screws and the two console support brackets from the floor console base and duct assembly
   • Four screws that secure the rear blower motor housing to the floor console base and duct assembly
   • Rear blower motor housing and place it on a bench
   • Rear blower motor wire harness connector from the power module
   • Eleven retaining clips and three screws that secure the housing together
   • Two halves of the housing
   • Blower motor wire harness and grommet from the housing and remove the blower motor

To Install:

1. Install or connect the following:
   • Rear blower motor into the housing and install the blower motor wire harness and grommet
   • Two halves of the rear blower motor housing and install the eleven retaining clips and three screws
     1. Torque to: 17 inch lbs. (2 Nm)
   • Rear blower motor wire harness connector to the rear blower motor power module
   • Rear blower motor housing into the floor console
   • Four screws that secure the rear blower motor housing to the floor console base
     1. Torque to: 17 inch lbs. (2 Nm)
     2. Two console support brackets onto the floor console base
     3. Eight screws that secure the support brackets to the floor console base
        1. Torque to: 17 inch lbs. (2 Nm)
     4. Body wire harness bracket onto the console rear support bracket
     5. Body wire harness connectors to the rear blower motor power module and the rear mode door actuator
     6. Negative battery cable
     7. Front center floor console
2. Calibrate the A/C-heater control.

Blower Motor - REMOVAL & INSTALLATION
(see Figures 1 and 2)



Fig. 1: Exploded view of the blower motor mounting



Fig. 2: Exploded view of the blower motor and wheel (fan) assembly

Without Air Conditioning

1. Disconnect the negative battery cable.
2. Remove the air cleaner or air inlet duct, as necessary.
3. If necessary, Remove the speed control module and the washer fluid reservoir.
   

Fig. 3: To remove the blower motor, first disconnect the electrical wire harness plug...



Fig. 4: ...then remove the blower motor cooling tube from the motor

1. Disconnect the wire harness connector from the blower motor by pushing down on the connector tabs and pulling the connector off of the motor.
2. Disconnect the blower motor cooling tube at the blower motor.

Fig. 5: Remove the blower motor attaching screws and the washer fluid reservoir...



Fig. 6: ...then slide the blower motor from the housing. Take care to not damage the blower wheel (arrow)

1. Remove the 2 screws attaching the blower motor and wheel to the heater blower assembly.
2. Holding the cooling tube aside, pull the blower motor and wheel from the heater blower assembly and remove it from the vehicle.
3. Remove the blower wheel push-nut and/or clamp from the motor shaft and pull the blower wheel from the motor shaft.
   

To install:

1. Install the blower wheel on the blower motor shaft.
2. Install the hub clamp and/or push-nut.
3. Holding the cooling tube aside, position the blower motor and wheel on the heater blower assembly and install the 2 attaching screws.
4. Connect the blower motor cooling tube and the wire harness connector.
5. Install the vacuum reservoir on the hoses with the 1 screws.
6. If removed, install the speed control module and the washer fluid reservoir.
7. Install the air cleaner or air inlet duct, as necessary.
8. Connect the negative battery cable and check the system for proper operation.
   

With Air Conditioning

1. Disconnect the negative battery cable.
2. In the engine compartment, disconnect the wire harness from the motor by pushing down on the tab while pulling the connection off at the motor.
3. Remove the air cleaner or air inlet duct, as necessary.
4. If necessary, remove the solenoid box cover retaining bolts and the solenoid box cover.
5. Disconnect the blower motor cooling tube from the blower motor.
6. Remove the blower motor mounting plate attaching screws and remove the motor and wheel assembly from the evaporator assembly blower motor housing.
7. Remove the blower motor hub clamp from the motor shaft and pull the blower wheel from the shaft.
   

To install:

1. Install the blower motor wheel on the blower motor shaft and install a new hub clamp.
2. Install a new motor mounting seal on the blower housing before installing the blower motor.
3. Position the blower motor and wheel assembly in the blower housing and install the attaching screws.
4. Connect the blower motor cooling tube.
5. Connect the electrical wire harness hard shell connector to the blower motor by pushing into place.
6. If removed, position the solenoid box cover into place and install the 2 retaining screws.
7. Install the air cleaner or air inlet duct, as necessary.
8. Connect the negative battery cable and check the blower motor in all speeds for proper operation.

Hope this help (remember comment and rated this).

1. Disconnect and isolate the negative battery cable.
2. Remove the passenger side cowl trim panel. See: Body and Frame\Interior Moulding / Trim\Trim Panel\Service and Repair\Cowl Trim
3. Pull back the carpet to access the front upper screw that secures the air inlet housing.
4. Remove the recirculation door actuator.
5. Remove the recirculation door actuator wire lead from the routing clip located on the lower air inlet housing and position the wire lead aside.
6. Disconnect the blower motor wire lead connector from the blower motor resistor or power module, depending on application.

Lower Air Inlet Housing

1. Remove the one screw (from the top) that secures the lower air inlet housing to the upper air inlet housing.
2. Remove the four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and remove the lower HVAC housing.

Blower Motor Wire Lead Grommet

1. Push the rubber blower motor wire lead grommet through the opening in the lower air inlet housing.
2. Feed the blower motor wire lead through the opening in the lower air inlet housing and remove the lower air inlet housing from the vehicle.
3. Position the recirculation-air door as necessary to access and remove the three screws that secure the blower motor to the lower half of the HVAC housing.
4. Gently flex the recirculation air door far down enough to remove the blower motor and wheel from the HVAC housing.

Blower Motor Mounting Tabs

1. Remove the blower motor and wheel from the HVAC housing. Note the position of the blower motor mounting tabs.

INSTALLATION

1. Position the blower motor and wheel to the lower half of the HVAC housing. Align the blower motor mounting tabs to the correct location on the HVAC housing.
2. Gently flex the recirculation-air door far down enough to install the blower motor and

if the blower works sometimes check the blower motor resistor which should be located by the blower motor

Break Down And Replace The Blower Motor


REMOVAL

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE AIRBAG SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. DISCONNECT AND ISOLATE THE BATTERY NEGATIVE (GROUND) CABLE, THEN WAIT TWO MINUTES FOR THE AIRBAG SYSTEM CAPACITOR TO DISCHARGE BEFORE PERFORMING FURTHER DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE WAY TO DISABLE THE AIR-BAG SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN AN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE PERSONAL INJURY OR DEATH OR DEATH.

NOTE: The blower motor is located on the passenger side of the vehicle under the instrument panel. The blower motor can be removed from the vehicle without having to remove the HVAC housing.

1. Disconnect and isolate the negative battery cable.
2. Remove the passenger side cowl trim panel.
3. Position the carpet to access the front upper screw that secures the air inlet housing.
4. Remove the recirculation door actuator.
5. Disconnect the blower motor wire lead connector from the blower motor resistor or power module, depending on application.
   1. Remove the one screw (from the top) that secures the lower air inlet housing to the upper air inlet housing.
   2. Remove the four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and remove the lower HVAC housing.
   3. Push the rubber grommet through the opening in the lower air inlet housing.
   4. Route the blower motor wire lead through the opening in the lower air inlet housing and remove the lower air inlet housing from the vehicle.
   5. Position the recirculation-air door as necessary to access and remove the three screws that secure the blower motor to the lower half of the HVAC housing.
   6. Gently flex the recirculation air door downward to gain access to remove the blower motor from the HVAC housing. NOTE: To aid in installation, note the position of the blower motor mounting tabs prior to removal
      1. Remove the blower motor from the HVAC housing by rotating and tilting the blower motor as necessary.
      INSTALLATION
      
      
      1. Gently flex the recirculation-air door downward to gain access to install the blower motor into the HVAC housing.
      2. Position the blower motor to the HVAC housing and tilt and rotate the blower motor as necessary to install it into the HVAC housing.
      3. Align the blower motor mounting tabs to the locations noted during removal and install the three screws that secure the blower motor to the HVAC housing. Tighten the screws to 2 N·m (17 in. lbs.).
      4. Route the blower motor wire lead through the opening in the lower air inlet housing and seat the rubber grommet.
      5. Position the recirculation door pivot shaft into the lower air inlet housing and install the inlet housing.
      6. Install the four screws (from the bottom) that secure the lower air inlet housing to the upper air inlet housing and the lower HVAC housing. Tighten the screws to 2 N·m (17 in. lbs.).
      7. Install the one screw (from the top) that secures the lower air inlet housing to the upper air inlet housing. Tighten the screw to 2 N·m (17 in. lbs.).
      8. Connect the blower motor wire lead connector to the blower motor resistor or power module, depending on application.
      9. Install the recirculation door actuator.
      10. Reposition the carpet.
      11. Install the passenger side cowl trim panel.
      12. Reconnect the negative battery cable.
      13. Perform the heater-A/C control calibration procedure.

your blower motor might be damaged.replace the blower motor of the air con.