by "HFV has no HFV. But somehow has 2 motorcycles" (hondasfordsvolvo)
Published 06/04/2017 at 19:32
by "HFV has no HFV. But somehow has 2 motorcycles" (hondasfordsvolvo)
Published 06/04/2017 at 19:32
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STARS: 2
Well put 2010 Fit has developed its first problem in the 20,000 miles/ 2 years we’ve owned it. The blower motor only works on full blast. Click 1,2, or 3 on the knob any you get nothing. Click to 4 and it goes full tilt. A relatively minor annoyance for short trips but it’ll need to be fixed before our next long trip. I’ll have to take it to the dealership, since I don’t want to take this car apart. I’m hoping it’s just the knob itself.
Sony1492 knew the problem, turns out it’s very common for 2nd gen Fits, and according into a 30 second YouTube video is an easy DIY as well. Parts on order for a whooping 17.54 shipped. Yay for the internet!
"415s30 W123TSXWaggoIIIIIIo ( •_•))°)" (415s30)
06/04/2017 at 19:38, STARS: 1
My 2006 CRV footwell air vent won’t go on, the only issue. Annoys my wife in the winter, it’s a big job to get in there I think though.
"facw" (facw)
06/04/2017 at 19:39, STARS: 0
Sadly I think that sort of problem is often surprisingly expensive to fix (at least on my car). I don’t have it myself, but I’ve run into people talking about it while reading up about my “auto” fan setting cutting on and off way too frequently.
"sony1492" (sony1492)
06/04/2017 at 19:44, STARS: 5
Sounds like the blower motor resistor gave up. This is a fairly common thing to break on most cars. Basically when you move the dial to 1 the resistance is highest and the motor received the least voltage, at two it receives less resistance, and three even less resistance (still some). But 4 the power bypasses the resistors and directly to the blower motor with battery voltage, hence if the resistor pack gave up(they can get very hot and melt) then everything before 4 won’t work.
"HFV has no HFV. But somehow has 2 motorcycles" (hondasfordsvolvo)
06/04/2017 at 19:46, STARS: 0
I wonder how hard it is to replace that, taking apart that dash looks like a PITA.
"sony1492" (sony1492)
06/04/2017 at 19:52, STARS: 1
https://www.fitfreak.net/forums/2nd-generation-ge8-specific-diy-repair-maintenance-sub-forum/71779-hvac-blower-motor-works-only-high-speed.html this should help, sounds like it’s fairly easy. Also could be excessive draw from the blower motor(but considering it took 7 years I wouldn’t worry about it.)
"HFV has no HFV. But somehow has 2 motorcycles" (hondasfordsvolvo)
06/04/2017 at 19:54, STARS: 0
Yeah, found a quick how to on YouTube. Parts ordered. Thanks for the help, I was thinking it would require pulling the HVAC dash panel and I didn’t want to monkey with that.
"AdverseMartyr" (ewilliamson)
06/04/2017 at 20:09, STARS: 1
resistor was my first thought as well.
"Eric @ opposite-lock.com" (theyrerolling)
06/04/2017 at 20:40, STARS: 0
I’m surprised they still use resistors for this. What a waste of energy. You’d think that they’d start running them off the BCM or something (they might do something like this in cars with automatic climate control) and use PWM to control fan speed.
"sony1492" (sony1492)
06/04/2017 at 20:53, STARS: 1
Nicer cars do use a computer for automatic systems but the resistor is cheaper so economy cars get them
"Eric @ opposite-lock.com" (theyrerolling)
06/04/2017 at 20:59, STARS: 0
I’m surprised that it is. They all have BCMs these days, so it would seem like the cheaper option would be PWM, rather than the large/expensive resistors required.
"shop-teacher" (shop-teacher)
06/04/2017 at 21:47, STARS: 1
Yeah, I had the resister go bad on my truck. Don’t wait to replace it like I did, because eventually it’ll burn out completely. Then the fan won’t work at all, and it smells like burning.
"Mattbob" (mattbob)
06/05/2017 at 12:20, STARS: 0
resistors are a lot cheaper to produce than a PWM motor controller and the extra input/output from the BCM. Like way cheaper.
"jimz" (jimz)
06/05/2017 at 12:39, STARS: 0
the issue is that a simple resistor network means you can also use a cheap permanent magnet DC motor. Trying to use PWM with the amount of current the blower motor can draw would be an EMC nightmare.
I have seen some higher-end vehicles which use a brushles (electronically commutated) DC motor for this, but those motors are a lot more expensive.
"Eric @ opposite-lock.com" (theyrerolling)
06/05/2017 at 13:46, STARS: 0
I wonder why brushless are more expensive, aside from the extra wire for the longer windings. Their complexity is outside the motor itself, with motor controllers that require some expensive components.
And you have a point there. I didn’t think of the much more expensive capacitors it would take due to the larger motor. I’m accustomed to using small motors (with a large filter cap, not brushless) and PWM for motion control, so it seemed reasonable to use that system instead of big resistors with heat sinks.