2009 FEH P0A7C Electronics over temperature
#11
Re: 2009 FEH P0A7C Electronics over temperature
You might have to bleed the system multiple times. I once had an overheating issue on a Polaris ATV and it was due to air in the system.. I had to raise the front end up to help "burp" the system. That might be useless on a FEH but air is a definite possibility. If your coolant bottles have residue, that could be an indicator that their is contamination in the system. If crystal clear with nothing at the bottom, less of a possible suspect. I would go after the hot trapped air first to keep it simple.
#12
Re: 2009 FEH P0A7C Electronics over temperature
Good luck and let us know. There shouldn't be any air in the system when it is working correctly, and it sounds like you had some in there. You might have to repeat the process but let's see what happens. Glad you found the bleeder.
#16
Re: 2009 FEH P0A7C Electronics over temperature
Okay I will give that a shot. I am not clearing the code each time but I see the wrench light come on after about 20 miles then I checked the code and it said P0A7C during current drive cycle. Should I reset all after each bleed?
#17
Re: 2009 FEH P0A7C Electronics over temperature
Well, I would imagine this code clears itself when the system is within spec. (don't take my word for that!) But if all the bleeding and so forth doesn't stop this, you're going to have to go deeper. Are you using Forscan? You say you replaced the MECS pump about a year ago. How long did it take to start getting this code after you did the job?
#18
Re: 2009 FEH P0A7C Electronics over temperature
Well, I would imagine this code clears itself when the system is within spec. (don't take my word for that!) But if all the bleeding and so forth doesn't stop this, you're going to have to go deeper. Are you using Forscan? You say you replaced the MECS pump about a year ago. How long did it take to start getting this code after you did the job?
I can do some research in Forscan to see if I can do some tests
#19
Re: 2009 FEH P0A7C Electronics over temperature
Sounds strange. I'm starting to think you might have an inverter or some other electrical component cooled by the system that's overheating. I wonder how it senses the temperature? Is there a sensor somewhere that has gone out of range? I haven't explored Forscan for what it offers to test and monitor those things.
#20
Re: 2009 FEH P0A7C Electronics over temperature
Sounds strange. I'm starting to think you might have an inverter or some other electrical component cooled by the system that's overheating. I wonder how it senses the temperature? Is there a sensor somewhere that has gone out of range? I haven't explored Forscan for what it offers to test and monitor those things.