codedeveloper
New Member
Hi,
I'm new here so I hope this is the correct place to post. Apologies if not.
Anyway, my heater fan has recently stopped working on my car. After some hunting around I removed the regulator unit circuit board for the fan and found it was corroded and covered in gunk. Obviously a water leak that's probably been there for a while. A couple of legs were broken on an electrolytic cap and on another unidentified IC.
I've cleaned up the board as best I can and resoldered the broken legs, but still no luck yet.
There are two 3-pin ICs. The first I've already identified and can source if necessary (part no STPS15 45CR).
The second IC I can't find anwhere online. I've no idea who the manufacturer is, or indeed what the part actually is. It's labelled 'ON5194 phm0235 C1'
![ics.JPG ics.JPG](https://www.electro-tech-online.com/data/attachments/32/32210-5b05ed2d120a8a6848ad2137eb5de9d6.jpg)
Can anyone help me identify this second IC, and where I would find a replacement?
Many thanks,
Shaun.
Additional Info: Car is a 2003 Vectra Elite 2.2 Petrol (Z22SE engine) with climate control. The heater fan was working the other morning, but gradually started cutting out. It died altogether after a minute and has not worked since. Climate control unit appears fine.
I'm new here so I hope this is the correct place to post. Apologies if not.
Anyway, my heater fan has recently stopped working on my car. After some hunting around I removed the regulator unit circuit board for the fan and found it was corroded and covered in gunk. Obviously a water leak that's probably been there for a while. A couple of legs were broken on an electrolytic cap and on another unidentified IC.
I've cleaned up the board as best I can and resoldered the broken legs, but still no luck yet.
There are two 3-pin ICs. The first I've already identified and can source if necessary (part no STPS15 45CR).
The second IC I can't find anwhere online. I've no idea who the manufacturer is, or indeed what the part actually is. It's labelled 'ON5194 phm0235 C1'
![ics.JPG ics.JPG](https://www.electro-tech-online.com/data/attachments/32/32210-5b05ed2d120a8a6848ad2137eb5de9d6.jpg)
Can anyone help me identify this second IC, and where I would find a replacement?
Many thanks,
Shaun.
Additional Info: Car is a 2003 Vectra Elite 2.2 Petrol (Z22SE engine) with climate control. The heater fan was working the other morning, but gradually started cutting out. It died altogether after a minute and has not worked since. Climate control unit appears fine.