I have a 2003 honda accord ex 4cylinder. the air blows but knob for air wont turn up to high or low. barely comes out. it will go to ac and heat but its like fan isnt working at all or switch that turns blower to high or low doesnt work. i am stumped. being driving for two years like this. any advice. i am limited on money so dont want to have to buy 80 dollar piece twice and just want to fix what i have to for now.

Steve Allison

• 5569 Answers
• Posted on Aug 06, 2008

SOURCE: Blower AC fan not working.

Hope you have both fixed your problem by now; my system has been down.

In most auto applications, the bearings of small fans and motors are made of sintered phosphor bronze with graphite or petroleum lubricant embedded in it.
Since there isn't much load on these, the bearings can outlast the rest of the car but they do have a tendency to get gummy and since the fan motor doesn't have much torque, it may have trouble overcoming the stickiness and start turning.

If it wasn't for the buried location of most blowers, it would be a simple job to flush out the bearings with a penetrating lubricant such as WD-40 that is mostly volatile and doesn't leave much residue behind to complicate (gum up) things again.

This problem is common to some computer cooling fans too although many of the small CPU cooling fans actually have PLASTIC bearings!
Including some that were clearly marked as 'ball bearings.'
Some balls -

Anand Kumar

• 2035 Answers
• Posted on Oct 16, 2008

SOURCE: air and heater

1. Disconnect the negative battery cable.
2. Remove the glove box.

1. Remove the duct between the blower and heater box.
2. Unplug the wiring connector and the vacuum hose from the blower.
3. Remove the three mounting bolts and remove the blower assembly.
4. Install in reverse order, tightening the mounting bolts to 7 ft. lbs. (10 Nm). Make certain the blower mating surfaces are tightly sealed. Install the blower duct; make certain there is no leakage at its joints.

1. Disconnect the negative battery cable. If so equipped, disable the Supplemental Restraint System (SRS).
2. Remove the glove box.
3. Remove the glove box frame (lower support)

1. If not equipped with air conditioning:
   1. Remove the three screws and remove the heater duct.
   2. Remove the blower mounting nuts. Unplug the wiring from the blower motor, resistor and recirculation control motor, then remove the blower assembly.
2. If equipped with air conditioning:
   1. Lift the carpet in the passenger compartment. Remove the side cover (kick panel).
   2. Remove the control unit bracket nuts; unplug the five connectors and remove the control unit bracket.
   3. Remove the retaining band, then remove the blower lower covers. Do not break the tabs on the lower covers.
   4. Remove the retaining nuts and remove the blower assembly.

1. Install the blower unit and tighten the retaining nuts.
2. On air conditioned vehicles:
   1. Install the lower covers and the retaining band.
   2. Install the control unit bracket and carefully engage the wiring connectors to their proper location.
   3. Install the kick panel and reposition the carpet.
3. Connect the wiring to the blower assembly. For non-air conditioned vehicles, install the air duct and tighten the screws.
4. Install the glove box frame and install the glove box. Note that some of trim on the frame is held with 2-sided tape; replace the tape when reassembling as necessary.
5. If applicable, enable the SRS.
6. Connect the negative battery cable.

SOURCE: the cooling fan doesnt work on my 91 honda accord

1. Cooling fan Relay
2. Engine temp Sensor
3. Cooling fan itself
4. If While A/C is on Fan does not come on I would Check Fan By unplugging it first than apply Pos+ and Neg- to it if it comes on that's eliminated Then go to step 1-3 one of them is bad I usually replace Engine temp sensors no mater what they are Crucial components for the safety of the Engine.

SOURCE: 1995 Honda Accord vent-on releases heat into cab, not air temperature.

try checking if the turn off valve needs adjusting stick your head under the hood and get someone to turn the heat setting on and off you can see the valve moving

SOURCE: AC STOPPED BLOWING COLD; ONLY BLOWS ON MAX MANUAL SETTING

Your AC is low on refrigerant; The AC compressor needs a minimum amount of regrigerant to run. If and when it does run (while low on refrigerant) the air coming out of the vents will not be cold. The refrigerant you require is R-134A and is available over the counter but if you are the least bit unsure as to how to add refrigerant, taking it to a garage that does AC recharging would be your best play. If you want to try to add refrigerant on your own you will need the following, 1LB can of R-134A, an AC hose adapter to deliver the refrigerant, and preferably an AC pressure guage to ensure you are not overfilling the AC line which will damage the system.