sholmes
New Member
Hi.
My less than a year old eberspacher Hydronic S3 had issues apparently caused by infrequent or insufficient running. It produced an error code of P00012a. Which notes the fuel supply. The device would start up but the fuel pump would not click.
I was told to check for carbon and so I deconstructed the device and indeed large hard carbon deposits were in the burner. I cleaned this out and removed them. Unfortunately the service kit I had purchased wasn't correct and the supplied gasket was not the correct shape. So I used the existing, somewhat damaged gasket. Put it back together and when reinstalled, it worked. For a few days. I noticed scorching around the gasket join and deconstructed. Carbon deposits again. Thinking that may have caused the deposits, and the device to stop working, I removed the deposits, cleaned the mesh with brake cleaner and then put a new, correct gasket on. Sadly, rigging it back up, the device started but again the fuel pump didn't click. Tried this a few times. Error code p00012a again. My fuel line is about 2 meters long with a shut off valve at its start. When I deconstructed the boiler, I turned it off and the remaining fuel obviously drained out. When I put the boiler back in, I connected the fuel line back to the pump and then turned the tap back on. I'm wondering if this has possibly caused a massive air block and because fuel isn't being detected at the pump, it won't start the pumping process.
Irritatingly I didn't check this whilst there, I just stormed off like s child and went home decrying eberspacher. Does this sound like a cause of the problem or anything else in this massive description likely to be the issue?
Many thanks
Sam
My less than a year old eberspacher Hydronic S3 had issues apparently caused by infrequent or insufficient running. It produced an error code of P00012a. Which notes the fuel supply. The device would start up but the fuel pump would not click.
I was told to check for carbon and so I deconstructed the device and indeed large hard carbon deposits were in the burner. I cleaned this out and removed them. Unfortunately the service kit I had purchased wasn't correct and the supplied gasket was not the correct shape. So I used the existing, somewhat damaged gasket. Put it back together and when reinstalled, it worked. For a few days. I noticed scorching around the gasket join and deconstructed. Carbon deposits again. Thinking that may have caused the deposits, and the device to stop working, I removed the deposits, cleaned the mesh with brake cleaner and then put a new, correct gasket on. Sadly, rigging it back up, the device started but again the fuel pump didn't click. Tried this a few times. Error code p00012a again. My fuel line is about 2 meters long with a shut off valve at its start. When I deconstructed the boiler, I turned it off and the remaining fuel obviously drained out. When I put the boiler back in, I connected the fuel line back to the pump and then turned the tap back on. I'm wondering if this has possibly caused a massive air block and because fuel isn't being detected at the pump, it won't start the pumping process.
Irritatingly I didn't check this whilst there, I just stormed off like s child and went home decrying eberspacher. Does this sound like a cause of the problem or anything else in this massive description likely to be the issue?
Many thanks
Sam