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Interior temp sensor or heater control valve?
- Thread starter ivanned
- Start date
Climate control unit DIY
I was going to send my climate control unit to be refurbished because the knob was not working all that well. Whenever I would put it to full heat it would get hot for a bit and then it would be luke warm. Every other component of my heating checks out.
As far as the climate control unit is concerned, all buttons and everything else was working great.
I know programainc.com are refurbishing these units, but I decided to give myself a shot in fixing it myself before I shed the ~$200 + shipping +core fee.
Recently I bought Deoxit D5 and G5, which is a contact cleaner, and supposedly a really good one. Both products are used in sequence and the cost of both is 40 bucks, which is not exactly cheap, but so far I used them to fix my stereo knob, and seat controls (I have the new version that cannot be easily opened without breaking them).
So I decided to try and so far its been working perfectly so far.
Here is what I did:
1. removed the wood trim
2. removed the 4 bolts that hold the top button bezel to the climate control unit
3. removed the 2 bolts holding the unit to the central console
4. unplugged the 2 plugs going into the unit (just pull them out)
5. use a flat small screwdriver GENTLY to lift off the buttons. Make sure you don't loose any parts. the buttons fall apart but are very easy to put back together
6. Use the same screw driver to undo the clips that hold the faceplate to the rest of the unit.
7. Undo the clips that hold the cover of the knob the same way.
8 Remove the knob. It goes back in only one way, so no worries about loosing orientation.
9. GENTLY pull out climate control switch (the thing that the knob turns) along with its mini board (slides up). Careful not to break the cable).
10. Put a paper towel around the switch ( so you don't make a mess) and spray it with Deoxit D5 very well. Connect the knob to it and turn it for a minute. Spray it again and turn again a few times.
11. Repeat the same but now with G5.
12. Use some thicker grease to lubricate the sides of the knob where it rubs on the plastic that encloses it (otherwise your knob will not turn well).
13. Put everything back together in reverse order.
PS: Sorry didn't take any pics, but it is not a very difficult job. Took me about 1/2 hour and I had never done it before.
I was going to send my climate control unit to be refurbished because the knob was not working all that well. Whenever I would put it to full heat it would get hot for a bit and then it would be luke warm. Every other component of my heating checks out.
As far as the climate control unit is concerned, all buttons and everything else was working great.
I know programainc.com are refurbishing these units, but I decided to give myself a shot in fixing it myself before I shed the ~$200 + shipping +core fee.
Recently I bought Deoxit D5 and G5, which is a contact cleaner, and supposedly a really good one. Both products are used in sequence and the cost of both is 40 bucks, which is not exactly cheap, but so far I used them to fix my stereo knob, and seat controls (I have the new version that cannot be easily opened without breaking them).
So I decided to try and so far its been working perfectly so far.
Here is what I did:
1. removed the wood trim
2. removed the 4 bolts that hold the top button bezel to the climate control unit
3. removed the 2 bolts holding the unit to the central console
4. unplugged the 2 plugs going into the unit (just pull them out)
5. use a flat small screwdriver GENTLY to lift off the buttons. Make sure you don't loose any parts. the buttons fall apart but are very easy to put back together
6. Use the same screw driver to undo the clips that hold the faceplate to the rest of the unit.
7. Undo the clips that hold the cover of the knob the same way.
8 Remove the knob. It goes back in only one way, so no worries about loosing orientation.
9. GENTLY pull out climate control switch (the thing that the knob turns) along with its mini board (slides up). Careful not to break the cable).
10. Put a paper towel around the switch ( so you don't make a mess) and spray it with Deoxit D5 very well. Connect the knob to it and turn it for a minute. Spray it again and turn again a few times.
11. Repeat the same but now with G5.
12. Use some thicker grease to lubricate the sides of the knob where it rubs on the plastic that encloses it (otherwise your knob will not turn well).
13. Put everything back together in reverse order.
PS: Sorry didn't take any pics, but it is not a very difficult job. Took me about 1/2 hour and I had never done it before.
Re: Climate control unit DIY
That's a good solution, and thanks for sharing. Pics always appreciated.
Generally for the ACC PBUs (push-button units), I just get spare units at the scrap-yard and keep them on hand. Generally you can get one for like $20, which is a good savings over the hundred$ that a place like Programa will happily charge you. That said, Programa is a good outfit.
How did you isolate things to your PBU temp-wheel? Did you use the factory diagnostic tree or ?
Cheers,
Gerry
That's a good solution, and thanks for sharing. Pics always appreciated.
Generally for the ACC PBUs (push-button units), I just get spare units at the scrap-yard and keep them on hand. Generally you can get one for like $20, which is a good savings over the hundred$ that a place like Programa will happily charge you. That said, Programa is a good outfit.
How did you isolate things to your PBU temp-wheel? Did you use the factory diagnostic tree or ?
Cheers,
Gerry
Full heat I would get only when defrost/defog was engaged, which I was told overrides the wheel. So that ruled out the valve or the heater core or the aux pump. I had recently replaced the ac blower, and the sensor was confirmed as functional. It was diagnosis by exclusion and so far everything is working as new.
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