Unfortunately, the Favorit based cars had a design fault with heater control valve. The valve is an all mechanical design operated via a solid core bowden cable.

The problem is, valve lever is connected to the middle of the rotating shaft which is made of plastic. The plastic shaft itself is not thick enough to support a screw in it. Also the heat from engine coolant weakens the plastic more. (PS: I don't know if the shaft was metal from factory. This is how all aftermarket parts are today)

This is the result:

 

Also, solid core bowden cable gets broken from interior where it connects to the control lever. That's very hard to replace.

 

Local mechanics' answer to this:

 

Yes. You guessed right. That's a regular valve for plumbing applications.

When it gets hot inside you have to pull over and close this valve or vise versa.

I was like WTF? No way. When I've found about this. Also the broken valve was leaking from the shaft center.

 

There is a spare part you can find on internet, labeled as "Universal Heater Control Valve". In fact, that's a spare part for Ford Fiesta and KA.

OEM code: 7N2118495AC

- This valve is normally open. Meaning; it will pass hot coolant if not powered.

- Has an internal return path. Meaning; when it's powered, the coolant flow is not completely blocked. It is redirected to the coolant circuit.

- My example draws 0.5A @ 12V.

 

Application example:

 

 

This is one of the first modifications I did on the car after buying it but I was unsure to post this topic.

I didn't know the Ford valve I used here was a target for low quality clones. If you get a bad one, the coolant leaks inside to the valve coil, dissolving the shellac over time and causing a short circuit. Using appropriate cable and fuse is important.

 

I posted this topic because, maybe someone needs a replacement for their classic car's heater valve that is not available anymore and looking for an alternate. If you choose to use this part, stay away from aftermarket parts from brands that you don't trust.

 

The first valve I had turned out to be fake. The second valve was also a fake too.   These only lasted for a couple of months.

The third one I have now, proved to be reliable by passing one year limit. This one has a slightly different metal cap. I hope it goes well because I won't buy a forth.

 

If you can find a reliable valve, the modification results are very convenient. With a flick of a switch, you get either hot or cold air from the vents. If not satisfied, one can build a simple voltage regulator circuit for a fine adjustment. (A BD240 can drive this)

18 hours ago, R_Blue said:

The first valve I had turned out to be fake. The second valve was also a fake too.   These only lasted for a couple of months

 

https://kritosparts.gr/part.aspx?expression=7N2118495AC

 

https://www.getparts.gr/index.php?category_id=0&search=7N2118495AC&submit_search=&route=product%2Fsearch

 

https://www.maxxparts.gr/antallaktika/search?s=7N2118495AC

 

https://onparts.gr/index.php?route=product/search&search=7N2118495AC

 

You mean cheap ''Chinese'' quality?

 

 

 

On 14/12/2022 at 11:56, D.FYLAKTOS said:

You mean cheap ''Chinese'' quality?

More like buying a SWAG but getting a no-name Chinese part. That was the parts seller's wrong doing.

 

The first part had FORD markings on it, the parts seller claimed that was an "original" part. Turned out to be fake. I bought the second valve from another seller, this time from a known brand. (I don't remember which) That was a fake too.

I found a more reputable seller and got the third from there. I also learned from my past bad experiences to how to identify genuine parts.

excellent idea hope its fused for safety

On 16/12/2022 at 21:41, Thefeliciahacker said:

excellent idea hope its fused for safety

Yes. It has its own fuse.

I have found an old photo from the hoses to the Heater Core.

 

 

 

The only way to work properly on them is to remove the battery but since it's extremely difficult (probably impossible) to found 2 original hoses i don't even want to think for a HVAC repair.

How does this relate to the rest of the thread?

3 minutes ago, Papez said:

How does this relate to the rest of the thread?

 

The @R_Blue has worked on this, you can see the mess, the new clamps etc.

I grab the chance to show to any New member that will search that matter how difficult is to reach that item (the Heater Core) plus how difficult is to find original hoses.

 

Non related could be a post about football, presidential elections, weather etc.

The post was about replacement heater valve. Felicia doesn't have one, because its heating system is different. Including hoses. Installation of the valve creates even more difference. So your post is entirely irrelevant.

Moderators: I would like to delete or remove the above post because it's hurts feelings.