We just got the diagnostic tool from Harman, which plugs into the control board for troubleshooting. No instructions provided, and I can't find the tuitorial that is supposedly available on the internet. We do have a problem Accentra insert job, that the tool was recommended for - soooo:
1- Anyone here familiar with the diagnostic tool, and do you have instructions?
2- The Accentra's convection blower runs infinitely after shutdown. The ESP probe (which would be a likely cause, if not functioning properly) was changed. There was also an odd sequence of operational problems, parts failures, and swaps that I was not involved with, but did get a history of. I believe a shorted ignitor wire led to 2 fuses being replaced, and then the control board (dip switches supposedly set correctly - I need to confirm this). Since the ignitor problem wasn't found until the last visit, I think the replacement control may have been again affected - unless the fuses 100% protect against this? The Harman tech support guy gave so me many things to check (including the pressure switch, which would seem to only tie into the combustion blower operation?), but said the diagnostic tool would pinpoint the problem quickly. On top of all this, certain wires were disconnecting each time we slid the unit back IN place - but that is now corrected. Any thoughts? Thanks in advance!
1- Anyone here familiar with the diagnostic tool, and do you have instructions?
2- The Accentra's convection blower runs infinitely after shutdown. The ESP probe (which would be a likely cause, if not functioning properly) was changed. There was also an odd sequence of operational problems, parts failures, and swaps that I was not involved with, but did get a history of. I believe a shorted ignitor wire led to 2 fuses being replaced, and then the control board (dip switches supposedly set correctly - I need to confirm this). Since the ignitor problem wasn't found until the last visit, I think the replacement control may have been again affected - unless the fuses 100% protect against this? The Harman tech support guy gave so me many things to check (including the pressure switch, which would seem to only tie into the combustion blower operation?), but said the diagnostic tool would pinpoint the problem quickly. On top of all this, certain wires were disconnecting each time we slid the unit back IN place - but that is now corrected. Any thoughts? Thanks in advance!