Did you have to replace the glowpin because of broken wires or burning out?
I believe it burned out (more info below on how I think I fried it), but the solder connections did look awfully tiny on the yellow wire. It could have been this throwing the resistance off, but I didn't actually check as I figured the replacement was better than the original anyways from reviews.
Here is the original Chinese one:
https://photos.app.goo.gl/yo48nLo2MUCpuozDA
The replacement had 1 awg thicker wire and the soldering was better, thicker connections, and a slightly thicker coils.
I unfortunately don't have a picture of the replacement glow plug.
Good advice. Why did you have to replace the glow plug?
I think I may have fried it myself. I was frustrated with my heater not starting (ended up being due to a small air leak in the fuel line, so it wasn't getting enough fuel, but I had thought it was just being finicky). I kept trying to start it up thinking it'd start since it had been somewhat finicky (turning off in the middle of the night due to flame going out, but always firing back up without issue).
I believe it repeatedly fired the glow plug with each attempt but not getting enough fuel to it, and then after a few tries it just kept throwing error 3 on the screen, meaning the glow plug is shot (or your voltage is so low it can't power the glow plug).
When I changed the plug, I checked all my hose clamps. A couple were loose enough that I could slide the hose around, so I just tightened em as tight as I could, and have had no issues AT ALL since. Like I said in my other post I ran the heater continuously for 72 hours since.