New heater blower very weak! October 25, 2020, 03:04:36 PM Hey guysHoping someone can help us. I’ve got a 1.8 mk2 auto and the fan fuse was blowing. So I replaced the fan and it now works but is just very weak? My resistor pack is clearly gone because setting 1-3 don’t work, but I don’t think that should effect setting 4? Anyone else had it where the blower fan barely blows? Have also check with thin paper and it is definitely blowing not sucking air in.
Re: New heater blower very weak! Reply #1 – October 25, 2020, 04:50:53 PM If the foam have come off of the direction flaps, as is common the air flow will be dispersed. You won’t get very good heat from it as it can’t separate from cold air. That could be the issue, but if it gets hot and you can control where the air comes from then you maybe need a new fan.
Re: New heater blower very weak! Reply #2 – October 25, 2020, 07:27:59 PM Quote from: Eddypeck on October 25, 2020, 04:50:53 PMIf the foam have come off of the direction flaps, as is common the air flow will be dispersed. You won’t get very good heat from it as it can’t separate from cold air. That could be the issue, but if it gets hot and you can control where the air comes from then you maybe need a new fan.Okay nice I will check these flaps because I did notice it was difficult to get any sort of strong flow from any vent. How can I check these?
Re: New heater blower very weak! Reply #3 – October 26, 2020, 09:40:12 AM Take a look at this guide. It should make more sense.https://www.vwgolfmk2.co.uk/clubforum/index.php?topic=63.0
Re: New heater blower very weak! Reply #4 – October 26, 2020, 09:49:55 AM You can also see here where I've done this myself, I've also replaced the foam around the flaps themselves.https://www.vwgolfmk2.co.uk/clubforum/index.php?topic=118.0
Re: New heater blower very weak! Reply #5 – October 26, 2020, 12:31:04 PM Quote from: Eddypeck on October 26, 2020, 09:40:12 AMTake a look at this guide. It should make more sense.https://www.vwgolfmk2.co.uk/clubforum/index.php?topic=63.0Ah mate this is priceless thank you. Glad to see it can be done without removing the dash! Will buy some adhesive foam and get it sorted!!When I look inside the dash from the radio hole, I can see this sort of white sock thing on one of the pipes going to dash vent. Do you think this was some previous attempt to keep the foam from blowing out?
Re: New heater blower very weak! Reply #6 – October 26, 2020, 01:55:23 PM No, that sock is standard on all mk2s, I believe it is a form of condensation prevention. 1 Likes
Re: New heater blower very weak! Reply #7 – November 07, 2020, 10:51:30 PM Had a crack at it today! Both panels had no foam on them at all! Replaced both with some thick heat/sound proof foam, worked a treatThanks for the advice. Only thing I noticed was the demister vents are no where near as powerful as the face/body vents when selected. Any thoughts ?
Re: New heater blower very weak! Reply #8 – November 08, 2020, 09:07:56 AM Where the upright part of the heater box joins the dash can sometimes deform, or the dash itself can delaminate there so you don’t get a perfect seal. You should be able to see this bit by taking the stereo out to see what I mean. You could be losing some of the hot air behind the dash if it’s not all going to the vents.
Re: New heater blower very weak! Reply #9 – November 14, 2020, 12:26:25 AM Quote from: Eddypeck on November 08, 2020, 09:07:56 AMWhere the upright part of the heater box joins the dash can sometimes deform, or the dash itself can delaminate there so you don’t get a perfect seal. You should be able to see this bit by taking the stereo out to see what I mean. You could be losing some of the hot air behind the dash if it’s not all going to the vents.Will give it a whirl!
Re: New heater blower very weak! Reply #10 – November 14, 2020, 07:41:12 AM Do you mean this Tim?Dash undersideWhen I had my dash out I found mine had deformed so reinforced with modelling plastic card and gave the surounding area a coat of diluted PVA solution. When I put it back together I used some window insulation tape to seal the join.If you do take the dash out you may want to do the following. Best do it whilst it's out.Check the double skinned "card" hasn't come adrift especially on the windscreen edge which will affect demisting.Also shake the dash so the remnants of heater foam come out.....I didn't realise there would be so much in there until my wife complained about the sticky dust on the kitchen floor!...Maybe do it outside?ENJOY! ........ I'm going through the dropped headlining trauma atm...That will be something else for you to look forward to.....pita. Last Edit: November 14, 2020, 07:53:20 AM by AndyBa 1 Likes
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