Returned home after high voltage repair work, first overnight charge the FCSP dies.

[F150LAQS]

Couple weeks ago my heater stopped producing heat, only air. Took it in, and they replaced the high voltage cabin heater. They charged the truck to 100%, and i've driven it a couple days without need to charge.

Last night I plugged it in at around 25%, on 60 amps setting, scheduled to stop at 80%.

This morning I notice there's no light on the fcsp, its dead.

The charging station has its own meter (active, no errors) and its own breaker box (the breakers were still in the on position, flipping them off for 15 mins didn't reanimate the fcsp).

The truck did charge, but only up to 71%, not the target 80%. So towards the end of the charge cycle something happened, and i think its unlikely a coincidence that work was just done on the truck's high voltage system.

The fcsp has never had any problems, and has never lost power before. I have contacted Ford's ev dept, they want to try to troubleshoot the charger (highly doubt it's coming back to life without a tech, if at all).

Idk if the cabin heater surgery wasn't done precisely enough, if something is seated a tad off from factory specs now, maybe something can now arc or overheat with sufficient charging amperage?

This does not feel like a totally safe situation, though the truck seems operationally fine - for now. I will have to take the truck back in for codes, maybe the truck registered something right before the fcsp lost power. Idk if anyone here can check my codes through my vin, if so thanks: (1FTVW1EV8PWGxxxxx).

Neither the truck nor my fordpass are showing any errors or alerts or related messages.

For now I cannot charge at home, but the more important issue I need resolved is whatever caused that failure, and I highly suspect it's the truck.

I can only hope the techs will fully understand the situation and sleuth out whatever is going on, because its likely subtle.

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[Maquis]

I generally don’t believe in coincidences, but the chances that your truck damaged the EVSE are slim to none.

 

[TaxmanHog]

Idk if anyone here can check my codes through my vin, if so thanks: (1FTVW1EV8PWGxxxxx).

Send a DM to @rugedraw with your detailed VIN.

Based on your VIN you have a 2023 (please update your vehicle details in the forum for future discussions, REMINDER to all NEW and OLD members to get that detail input for support expediency) https://www.f150lightningforum.com/forum/account/account-details

Your FCSP might still be in warranty depending on when purchased, go the through the motions with the BEV specialists or Siemens technicians, if warrentable they might send you a new unit gratis.

 

[F150LAQS]

Send a DM to @rugedraw with your detailed VIN.

Based on your VIN you have a 2023 (please update your vehicle details in the forum for future discussions, REMINDER to all NEW and OLD members to get that detail input for support expediency) https://www.f150lightningforum.com/forum/account/account-details

Your FCSP might still be in warranty depending on when purchased, go the through the motions with the BEV specialists or Siemens technicians, if warrentable they might send you a new unit gratis.

Thanks, i entered my VIN in the 'About You' section at the bottom. I didn't see a specific place to enter the vin. did i miss a place?

 

[chl]

So the FCSP did not send any alerts to the Ford app and it does not power so no fault status lights, just completely dead.

Occasionally I have seen the solid white light, but flipping the breaker off then on a minute or two later always restores it to 'bright blue.'

There have been some complete failures and warranty replacements for FCSPs.

An EVSE is a 'smart' switch, so once the L2 J1772 signaling is done, it will connect the power source to the on-board circuitry through the charge port,

If the truck were somehow miswired during the repair, I don't think the FCSP would charge from 25% to 71%, it would likely fail immediately.

Other internal errors would show the red light fault indication.

NOTE: there is a fuse, but it is a DC fuse for the HIS system, so should not be involved in the problem - I had to look at the circuit diagram to be sure.

 

[chl]

About the fuse - it is a DC fuse for the HIS as shown in the diagram below.

 

[chl]

It occurred to me that perhaps during the charging, a wire providing power to the FCSP came loose either inside the FCSP or at the breaker.

It can happen.

Also, breaker can fail -there was one case where the install had a bad breaker.

Checking either the FCSP wiring and power, or the breaker should be done by someone with the knowledge and skill required, e.g., a licensed electrician.

 

[TaxmanHog]

Thanks, i entered my VIN in the 'About You' section at the bottom. I didn't see a specific place to enter the vin. did i miss a place?

Send VIN's to the couple of members in a DM who might be able to help research the IDS/FDRS systems to give you insight to what if any codes or pending updates your truck needs or is experiencing. I mentioned one above, there are a couple others who have the power to help with the vehicle data.

VIN's should NOT be in your profile or public conversations in the threads, I redact them when I see them.

Your public profile shows this detail, it's helpful to include your model year, when you're using the web-browser version of the forum, click the little box with the arrow, it's a toggle to show/hide details you chose to share on the forum.

Link to edit details: https://www.f150lightningforum.com/forum/account/account-details

 

[Heliian]

Step 1) check for proper connections and power going to the fcsp.

Step 2) ring out board to find damaged component.

Step 3) repair or replace.

Occasionally I have seen the solid white light, but flipping the breaker off then on a minute or two later always restores it to 'bright blue.'

Yes, solid white means resetting and requires no intervention. Mine goes back to blue if I plug in. It also goes white after ending a session and then back to blue. You shouldn't have to reset the breaker to make it work.

 

[TaxmanHog]

Yes, solid white means resetting and requires no intervention. Mine goes back to blue if I plug in. It also goes white after ending a session and then back to blue. You shouldn't have to reset the breaker to make it work.

Agree, mine will always show white mode in the morning after an overnight charging session, returns to blue within 60 seconds all by itself, I've suspected it's a form of soft-reboot, but not certain that is what is happening.

Most of the time I disconnect from the trucks port within a few minutes of completed charging to gather my statistics to update logs, that's usually afternoon or early evenings, there is no white light displayed it just stays at solid bold blue.

 

[F150LAQS]

So the FCSP did not send any alerts to the Ford app and it does not power so no fault status lights, just completely dead.

So the FCSP did not send any alerts to the Ford app and it does not power so no fault status lights, just completely dead.

Occasionally I have seen the solid white light, but flipping the breaker off then on a minute or two later always restores it to 'bright blue.'

There have been some complete failures and warranty replacements for FCSPs.

An EVSE is a 'smart' switch, so once the L2 J1772 signaling is done, it will connect the power source to the on-board circuitry through the charge port,

If the truck were somehow miswired during the repair, I don't think the FCSP would charge from 25% to 71%, it would likely fail immediately.

Other internal errors would show the red light fault indication.

NOTE: there is a fuse, but it is a DC fuse for the HIS system, so should not be involved in the problem - I had to look at the circuit diagram to be sure.

yea im not sure about the vulnerabilities of the fcsp during charging. assuming the truck was no culprit, which again is quite a coincidence, then the only other smoking gun i can see is that the fcsp sat without any use, in very cold temps, for about 2.5 weeks.

 

[chl]

Step 1) check for proper connections and power going to the fcsp.

Step 2) ring out board to find damaged component.

Step 3) repair or replace.



Yes, solid white means resetting and requires no intervention. Mine goes back to blue if I plug in. It also goes white after ending a session and then back to blue. You shouldn't have to reset the breaker to make it work.

Interesting behaviors.

I've noticed it go to white (and sit there) only a few times, but never noticed it go back to blue on it's own without a breaker flip.

One time before a charge session was supposed to start, and it didn't, I looked at the FCSP and it had the white light.

I never tried waiting for it to go back to blue, or if not plugged in, plugging it in to the truck to see what happens, or noticed it go white after a sessions, but I can't say it doesn't because I don't think I've ever been in my garage when the session ended at 3am or so, lol.

I'll have to see if I can observe those behaviors next time I catch it with the white light.

 

[chl]

Step 1) check for proper connections and power going to the fcsp.

Step 2) ring out board to find damaged component.

Step 3) repair or replace.

Yes, first step is always verifying the thing has power if it is dead as a door nail so to speak.

If no power to the FCSP board terminals, and no loose connections or wire breaks, then must be a bad breaker.

There was at least one other professional install that failed due to a bad breaker reported on the forum.

 

[F150LAQS]

Step 1) check for proper connections and power going to the fcsp.

Step 2) ring out board to find damaged component.

Step 3) repair or replace.



Yes, solid white means resetting and requires no intervention. Mine goes back to blue if I plug in. It also goes white after ending a session and then back to blue. You shouldn't have to reset the breaker to make it work.

Yes, first step is always verifying the thing has power if it is dead as a door nail so to speak.

If no power to the FCSP board terminals, and no loose connections or wire breaks, then must be a bad breaker.

There was at least one other professional install that failed due to a bad breaker reported on the forum.

possible. the meter seems fine, and the entire unit/circuit has been working for over a year. i didn't use it for about 2.5 weeks in cold weather, and then started using it and it failed towards the end of its first charge. odd way to fail? idk.

 

[rugedraw]

He messaged me the VIN. Truck is not reporting any codes related to the charging system. The issue seems to be with the charger itself.

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