Good to know, there's some repair service working on these.
I have a Gen 1 UMC that just stopped working, I wonder if there are any easy fixes for this? The contactors no longer trip over.
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Repair a broken HPWC?
- Thread starter Vines
- Start date
Good to know, there's some repair service working on these.
I have a Gen 1 UMC that just stopped working, I wonder if there are any easy fixes for this? The contactors no longer trip over.
Xenoilphobe
Well-Known Member
Thanks for the info!
I got a reply back from Albright directly. It is indeed a 240v coil, DC. I measured the resistance on mine and it is in spec.
Type : SW82-312
Coil Voltage (V) 240 CO DC
Coil Resistance (Ohms) 7000
Pull In Voltage (V) 170.0 Maximum
Drop Out Voltage (V) 60.0 Maximum
Coil Power Dissipation (W) 8.23
Additional Features:
DUST SHIELDS FITTED.
2126-48A TOP HAT MOUNTING BRACKET KIT FITTED TO LHS OF COIL TERMINALS.
All figures above are stated at 20 degrees Celsius.
I need to get brave enough to hit it with 240v DC to see if it clicks, but I suspect it will. Time to dig deeper.
I got a reply back from Albright directly. It is indeed a 240v coil, DC. I measured the resistance on mine and it is in spec.
Type : SW82-312
Coil Voltage (V) 240 CO DC
Coil Resistance (Ohms) 7000
Pull In Voltage (V) 170.0 Maximum
Drop Out Voltage (V) 60.0 Maximum
Coil Power Dissipation (W) 8.23
Additional Features:
DUST SHIELDS FITTED.
2126-48A TOP HAT MOUNTING BRACKET KIT FITTED TO LHS OF COIL TERMINALS.
All figures above are stated at 20 degrees Celsius.
I need to get brave enough to hit it with 240v DC to see if it clicks, but I suspect it will. Time to dig deeper.
I'm 'shocked' it seems to be a 240V DC coil. Not saying it can't be, its just a really strange thing.
Can you not check if it clicks just by plugging it into your Tesla?
Yes, I'm also shocked its 240DC but that is what the spec says and what Albright says.
And yes, I checked for contactor clicking before taking it apart, multiple times. I also checked for voltage on those coil wires but at the time I didn't know what voltage to look for, or if it was AC or DC. I saw neither.
I found this great EVSE tester from a local guy: EVSE J1772 Tester & Simulator DIY Assembly
Could use some polishing and some safety but it works. No action from my Tesla EVSE.
Next step will be digging into the control board in the EVSE to see what is wrong.
And yes, I checked for contactor clicking before taking it apart, multiple times. I also checked for voltage on those coil wires but at the time I didn't know what voltage to look for, or if it was AC or DC. I saw neither.
I found this great EVSE tester from a local guy: EVSE J1772 Tester & Simulator DIY Assembly
Could use some polishing and some safety but it works. No action from my Tesla EVSE.
Next step will be digging into the control board in the EVSE to see what is wrong.
That contactor part was exactly what I needed to fix my Gen 1 HPWC. Ordered it from online components.com for $45 shipped. Took about 1 hour to replace as it is a tight space and I'm back to charging at 58mi/hr (19kw). Saved me a bunch of $$$$. These forums and everyone here are godsend!!!
Justwn
Member
Same part was broken on my Gen 1 HPWC.
Replaced with a new Curtis Instruments SW82-312-240DC-CO (ordered from onlinecomponents.com for $48 USD including taxes and shipping) within 20 mins, connectors audibly clicked during test mode, and all is working again.
Thanks for much!
Replaced with a new Curtis Instruments SW82-312-240DC-CO (ordered from onlinecomponents.com for $48 USD including taxes and shipping) within 20 mins, connectors audibly clicked during test mode, and all is working again.
Thanks for much!
Not if you can manage to find 13,400V to power it. The 12kV line outside your house might just do it
I purchased a new box of Curtis Albright SW82-353 relays on ebay for $150 shipped. Figured I can pawn the other 9 off over time to those that have the same issue with their gen 1 HWPCs.
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