I purchased my ZTR two summers ago and it has been working great. It's been really hot here lately and I have not needed to mow for the last few weeks. I went out to start the mower the other day and it would not start, it only made a high pitched squealing noise that came from the left side of the motor if you were directly behind it. That area has the relays and fuses. I took the battery off and charged it. That was not the issue. I contacted the shop I purchased it from and they do not want to try to help diagnose it over the phone, they stated the only options are for them to pick it up or drop it off. It's still under warranty, but I'd rather get it fixed and mowing, then have to go through the hassle of getting it there and waiting to get it back. Any advice or spots to look for? I can take and upload pictures if needed. Thank you for the help.