QuestionQUESTION: hi I HAVE A 1999 ACCENT 2 DOOR 1.6L ,MY HEATER BLOWER IS WORKING FINE BUT THERE IS NOT A LOT OF AIR COMING OUT TO MY WINDSHEILD, I HEARD THAT THE ACCENTS HAVE A FILTER FOR THE HEATER ,IS THIS TRUE AND COULD THIS BE THE REASON ( blocked filter)THAT THERE IS LITTLE AIR COMING OUT.AND IF SO WHERE IS IT LOCATED THANKS FOR YOUR HELP
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ANSWER: Unless the Canadian HVAC system is different from the U.S. system, there is no air filter nor a place for one.
There are several possibilities:
-- damaged fan blades, or
-- improperly operating mode door, heater control, or cable.
First, it'll help if I can get a little more information.
You say that there is a small amount of air coming out the windshield registers. Do you receive the normal amount of air from the dash and floor registers when they're selected? How did you determine/decide the blower is working properly?
The answers to these questions will help me send you to the proper place for inspection.
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QUESTION: ok i checked and there more air coming out of the dash and floor register.I determined the blower is working fine because i can hear it turn at different speeds depending on which speed i select.also i have a bizarre question, when my car is parked my windows inside frost up either on cold or warm winter days, everyday actually,and when i look at all the cars around me none have frost windows inside there windshield are clear. thanks for both answers.
AnswerFirst, you'll want to check the cable running from the mode selector lever to the heater box. To do this, look up under the dash while moving the selector lever from side to side so you can see which lever on the heater box moves while you're moving the selector lever. The heater box is located behind the center of the dash. I believe the mode select cable attaches to a lever on the driver's side of the heater box, but I don't recall for sure. If you don't see anything moving on the driver's side while you're moving the selector lever, try again on the passenger side.
What you're looking for at this point is that the cable is securely attached to the heater box and that it moves the lever on the heater box fully in both directions. If it's not secure, it may have simply come out of the clip that holds it on the side of the box. In that case, simply attach the cable housing to the clip in a position such that it'll move the lever on the side of the heater box fully in both directions. Similarly, if the cable is clipped in place but won't fully move the lever, simply unclip it and reclip it in the proper position using the above procedure.
You'll also want to look at the cable to see if it's been damaged. The heater control assembly is attached to the dash faceplate. If an attempt to remove the faceplate is made without detaching the cables from the heater box, the cables (or control) will be damaged. I've seen this numerous times after radio installations or replacements by people that didn't know to detach the cables from the heater box.
If all the above checks okay, you'll want to remove the mode selector cable from the lever on the heater box. There should be a tab you can depress on this lever which will release the cable. Now, with the fan on high speed, move the lever on the heater box by hand from one position to the next and recheck your air output in the corresponding locations. If you still do not have the proper airflow on defrost, then it's likely that one of the doors inside the heater box is broken and/or will not move properly, and is partially blocking the air flow.
In regard to the fogging of the windows, it is solely dependent on three things:
-- the temperature inside the vehicle
-- the temperature of the windshield/windows
-- the humidity inside the vehicle.
The warmer the air, the more moisture it will hold. Fogging (or even frosting) of the inside of the windows is caused by the air inside the car contacting the colder windshield, which causes moisture to settle out of the air as it cools. This moisture then attaches itself to the windows.
The reasons your car might have fog/frost when others do not include:
-- Being parked for a longer period of time. This will allow the windows to reach a cooler temperature and result in more moisture settling out of the air inside the car.
-- Liquids inside the car. This could be something you've put in the vehicle, or it could be due to water leaking into the car. In either case, as the inside of the car warms when you operate it, the air inside the car will absorb moisture, and, after you operate the car, the air will cool and the moisture will settle back out.
As an additional note, your defroster will be significantly more effective if the air conditioning is operated and the air input is set to outside air. Using outside air will reduce the amount of humidity in the car, and the air conditioner also acts as a dehumidifier.
