[lulumike]

If cold air is still coming out of AC vents, but not as cold, it has been recharged, and dealer checked compressor to be OK, could it still be the blend door that you've described?

Thanks

lulumike

 

[canderson]

No model, no year, no trim level, so we'll have to hazard a guess that you really do have a dual climate control system.

You don't say if this problem is impacting both sides equally. Normally, one side fails first. But again, we'll hazard a guess that only one side is the offender.

If failed in a half-way position, yes. Set the side that operated to full "Lo" position to force the compressor to operate to cool that side. Send the offending side over to some nice, hot temperature and see whether the output temperature stays the same tepid version of 'cool' that you are currently experiencing. If so, then you'll know that the blend motor isn't moving. If you start getting warmer air, then the door moved, and you've got other issues.

 

[rsonata99]

I have a 2011 Sonata Limited with Dual Auto air, and when the AC is cranked all the way down to 65 I have warm air coming out of the driver's side and cold air coming out of the passenger's side. I thought for sure it would be a blend door/actuator issue, which lead me to this thread. However, when I adjusted the temp I could see the driver's side actuator moving. I went ahead and removed it and manually moved the blend door arm from the hot side all the way to the cold side, but I am still getting warm air out of the driver's side. So I guess I need to check the charge on the AC, but I am puzzled as to why it would be cold on the passenger's side and but not on the driver's side...

 

[ebivens]

Thank you SO much for this post. I bought the part and installed it. Presto! it worked. I had to replace the driver's side which was quite easy. Thank you so much for sharing!

 

[Alex1970]

So I was able to reach the "Temp Blend actuator" which is located at the passenger side, and looks like an ear.
Does anyone know how to check if it is in good condition or need to be changed?
There was a small white flip below it, i moved it by hand up and down and nothing happened...

 

[canderson]

With system running, work the temperature up and down for the side that has the issue. Should move in response to temperature change requests.

 

[DareDevil01]

Can you buy the same part for both sides? Or does it only fit one side?
Cheers!

 

[canderson]

Different part number for each side (sort of a left-hand right-hand thing).

 

[DareDevil01]

Dammit, that complicates things a little. Which one is which? Do you know the part number for each side?
Does eBay/Amazon sell both parts?

 

[canderson]

971603K000 = passenger (white actuator)
971593K000 = driver's (blue actuator)

 

[DareDevil01]

I've seen other people who just took the working motor out of the assembly and put it in the old assembly, the motors from both parts look identical. Is that a possibility rather than sourcing two different units from two different sellers?

 

[canderson]

Yes. If you don't mind a bit of additional DIY, you can repair the assembly. Early (very) in this thread somewhere, you'll find at least one reference to a part number for a 3rd party component for repair of the assembly. The motor is the same for both sides.

 

[Bobbyg9]

Motor can be found here: http://www.ebay.com/itm/RF-370-Air-...12-V-RF-370CH-15370-/281921364553?hash=item41a3d2a249:m:m6UNmMM6fMpoG4tjEVfHRmw

 

[steveH]

RF-370 Air Pump Motor - 3 to 12 VDC - 5600 RPM - 12 V - RF-370CH-15370, is this really correct a 4800 (load) rpm motor for an actuator?

 

[qpcharry]

HI

I did replace the actuator on the passenger side but its operating opposite. when i put on heat it blows cold air and when i put it on cold it blows out hot air, any thoughts

 

[canderson]

You're going to need to reverse the pins for the the motor connection, it would seem. The motor operates based upon the polarity of the voltage from the A/C unit, and if the wires are reversed, so is the operation.

 

[qpcharry]

I already tried that but it didnt work anymore suggestions?.

 

[canderson]

? You need to watch the thing moving when running the temp to high and low to see what's going on.

Just had a thought ... wonder what these things do if the ground and 5V are swapped on a sensor? Have never encountered that, so no idea what they would do. Wonder if A/C control responding to a reversed sensor would actually take that into account and try to reverse motion???

 

[richtopbloke]

Massive thanks to Tim & everyone else on here for your posts.

Had a temp issue with a 2008 i30 (single zone system) where it would blow tepid/warm air no matter setting i had the a/c on.

Local garage ran diagnostics and came back with a B2406 fault code (Temp Actuator/Air Mix Motor), but referred me to Hyundai to get it fixed.

They wanted £120 to run a diagnostic (even though I told them what the problem was) and, if it was the actuator, another £600-700 to fix it!!

Purchased to part (£110 from Hyundai) with some in depth searching, re-reading this post over & over again, gave it a go this morning.

One hour later and one very satisfied puffed out chested me, I have cool & hot air as required.

I am by NO means any form of mechanic and this is only the second fix I've ever attempted on a car (other than bulbs etc.)

Very easy instructions and the pictures helped (although a different model) massively.

I urge everyone to have a go if they get this issue.

Thanks again Tim, and everyone else.

 

[wiggles]

Same problem, but not dual zone

I have a 2007 Santa Fe (SE, I think) and am experiencing the same problem: A/C only working on passenger's side; warm air blowing out the driver's side. The driver's side will eventually cool down a little bit after an hour or so of driving, but nothing even close to as cold as the passenger's. All of these posts seem to be very helpful, but I do not have dual zone climate control. Could the actuator still be the problem/solution? If so, which side do I need to replace?

Thanks for your help