When I turn my key to the on position, instead of the silent waiting period for the glow plugs to preheat, the warning buzzer immediately begins intermittent beeping and the glow plugs don't preheat, so the engine will crank when I turn the key to start, but won't start. I checked the obvious reasons this should happen first. Brake is set. Both drive levers are in the neutral and outward position, and the PTO switch is disengaged. Next I verified that all the switches associated with those functions are operational. I metered them all and bypassed them individually so I'm confident they're working. I thought I might have been getting some erroneous readings when I metered the PTO switch, so I replaced it just to be sure. Still no luck. I've also checked my engine oil level, and the sensor in the seat shouldn't have anything to do with the problem since the engine should start even if the operator's not in the seat provided all the aforementioned conditions are met.
This problem first occurred a couple times last season, but it never persisted and I figured I had an intermittent connection in one of my drive lever limit switches. This spring it started fine the first time out of the garage, but I got nothing but the beeping the following weekend. That's when I started checking all the switches and replaced the PTO switch. I have not resorted to checking every electrical connection on the entire machine yet. All the connections I've checked so far all looked good; clean with dielectric grease already applied. I'm hoping someone who reads this may have encountered the same problem and has some advice for me. Really hate to resort to hauling the mower to an Exmark dealer for service for an intermittent electrical problem that I can't help believing is something simple that I'm overlooking. Any help would be greatly appreciated. Thanks!
This problem first occurred a couple times last season, but it never persisted and I figured I had an intermittent connection in one of my drive lever limit switches. This spring it started fine the first time out of the garage, but I got nothing but the beeping the following weekend. That's when I started checking all the switches and replaced the PTO switch. I have not resorted to checking every electrical connection on the entire machine yet. All the connections I've checked so far all looked good; clean with dielectric grease already applied. I'm hoping someone who reads this may have encountered the same problem and has some advice for me. Really hate to resort to hauling the mower to an Exmark dealer for service for an intermittent electrical problem that I can't help believing is something simple that I'm overlooking. Any help would be greatly appreciated. Thanks!