Sv: Sveitsisk firma vil drive elbiler med kald fusjon

[Citrus]

Dear All,

This morning my Th!nk had an ugly surprise, I was already suspicious to see the traction battery only be charged for 80%. Since it had been freezing I wanted to defrost my windows so I started the car, this is what happened:
- Contact, clickerdiclick everything normal
- "Starting" first second all ok, cooling liquid pump starts humming, 12V light goes out, "car ready" light in console comes up.
- After one second I hear a subtile (relay) click near the passenger side, the cooling liquid pump stops working, the 12V light comes back on but the green "car ready" light stays on...
- Yes, it still drives but without the power steering operational and to the sound of the brake pump it is noticeable that indeed the 12V battery is not being charged.

What about the charging of the traction battery, almost similar story:
- power available light comes on, Clickerdiclick, all normal
- Pump starts humming, charging light comes on
- 1 second later pump stops, charging light goes out, clickerdiclick, disconnected.

And yes, when starting the car again the whole procedure repeats itself (so after the self test the wrench remains off till the relay clicks and the pump and the DC/DC stop working).

Anyone any clue?

Happy to hear your suggestions and fixes. Jaap

[Go-carter]

Have you tried to hook it up to a 12V charger, before you try to charge it? If the DC-DC is the problem (or the 12V battery), this could rule it out.

[Citrus]

Dear Go-carter, all,

Indeed my 12V DC/DC converter is gone. Before opening the PCU I was hoping to source a replacement converter, just in case mine is beyond repair. Anyone has a fully functional DC/DC converter for a GEN 2 (Li-Ion) Th!nk for sale?

Happy to hear any suggestions (also for repair).

[Think1]

I have a pcu gen 2 and i Can fiks your pcu, but you have to check the fuse also inn the pcu, there are a fuse on the board that brake down.
If you take out the pcu, i Can check if the board  Can be fikst and Can change the fuse.
Fredrik

[Citrus]

Dear All,

It took me some time to get a deeper understanding of the Th!nk electronics (also because of the other issue with my car). Cutting a long story short, the above issue was caused by a defect DC/DC converter which also fused the 10 Amp HV fuse 4 on the fuse board. I was lucky to get a used converter from the USA (thinkparts4u.com), fuses are available in the US as well (mouser.com). After getting the PCU out and the new goodies in this issue was solved.

You'll find the other issue in the other thread