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time for my own velit problems: i installed the heater over thanksgiving and was able to test it at the time successfully and didn't have my electrical system installed until this week. i started the heater up and got error code 7 (fuel pump error). i was able to prime the pump successfully but trying to run the heater again still had the same error.

i measured 8.6 V at the two brown wires going to the pump (seems oddly low but I'm not sure if this is a PWM pump or something?) and 0 ohm resistance there. can anyone confirm what their voltage is measuring at the pump?

I emailed velit and am waiting to hear back
Any updates on this I just installed my heater today and am getting the same error code
 
Discussion starter · #83 ·
Any updates on this I just installed my heater today and am getting the same error code
Any updates on this I just installed my heater today and am getting the same error code
Can you measure the resistance between both terminals of the pump? It should be about 5.5 ohms.

My issue was a bad installation of the glow plug from Velit documented here https://www.fordtransitusaforum.com/posts/1341493/

I'm hoping my experience isn't typical for others but happy to help if I can
 
Can you measure the resistance between both terminals of the pump? It should be about 5.5 ohms.

My issue was a bad installation of the glow plug from Velit documented here https://www.fordtransitusaforum.com/posts/1341493/

I'm hoping my experience isn't typical for others but happy to help if I can
I unfortunately dont have a volt meter on hand I'll have to borrow a friends tomorrow. Do you take the measurement at pump harness?
 
Remove the harness from the pump and measure on the pump itself (not the harness)

thanks for the info, Little update on my end for people with the error in the future.

Called velit. checked ohms on pumpmeasured at 5.3.

had to removed the seat and take pictures of the ECU, they are shipping me a new ECU to try and fix the problem, but they are out of stock in NA till mid June. So I likely wont have it for 6 weeks.

Overall not super happy with Velit, it sounds like this ECU has lots of problems and is a common problem, which makes me wonder why they are shipping these units out without checking them
 
They just came out with over the air updates to the ECU firmware so that's a big plus. I wanted to update mine to get the lower set point for winter time anti-freezing need, but wasn't relishing the $50 charge and wait involved in swapping out the ECU again. Now I don't have to do any of that apparently - but need to check first if my current firmware is OTA enabled or not. I'm guessing not since its ~4 months old from the bluetooth update.

 
They just came out with over the air updates to the ECU firmware so that's a big plus. I wanted to update mine to get the lower set point for winter time anti-freezing need, but wasn't relishing the $50 charge and wait involved in swapping out the ECU again. Now I don't have to do any of that apparently - but need to check first if my current firmware is OTA enabled or not. I'm guessing not since its ~4 months old from the bluetooth update.

So the update has the lower set point? That's awesome. I sent mine in and had it done. I really like having a lower temp setting.
 
A few years ago I purchased a Russian stainless steel heater box from the US eBay. It was a simple well built box. But I ended up installing my diesel heater inside the rear bench seat in front of the driver side wheel well.

I think you can find a metal tool box that would be the correct as size to mount the heater inside. Or go to a local welder and have them fabricate an enclosure.
 
Bummer is the over the air update for firmware feature is only for current heaters - not clear from their video.

I sent in both my ECU and thermostat (bought in Dec 2023) so they could get updated or replaced. All I got back was newer firmware that has the lower 40F set point capability, but they said even if the entire ECU and thermostat are replaced, the heater can't become OTA capable. Seems odd because the rest of the connections to the ECU are all simple sensor IO or power switches it seems. I had previously updated the thermostat to the bluetooth capability and it looks identical to the one in the video.
 
Sigh. Now I'm just pissed off.

I just discovered the heater ECU I got back from Velit doesn't actually have a 40F set point. It seems like it did because the iPhone app shows 40F as the low point, but the manual rotary dial still only goes down to 60F. And if I try to set below that with the phone, it works, but then seconds later will snap back above 60F.

This is beyond small company growing pains. It's now just incompetent customer service processes - no customer service ticket numbers, no formal paperwork on anything you exchange. It's hap hazard. I really wanted to give them some space, but after exchanging ECUs 4 or 5 times now in the last 16 months, I'm just mad. At least it still works and provides heat, but frustrating.

That and the iPhone app is just a complete bizarre UX design following no industry norms for selection or status. One can muddle through, but it's especially confusing if you have both an AC and a heater from them and are trying to control them both.

And zero security on them from a BT standpoint. If you stand near the van, you can mess with either if you simply run the app.
 
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