no start z45/25

I have a Deutz z45/25. Was operating it and stepped on the pedal in the basket, no RPM change though it was set on high idle. Started to boom up and lift shut off. Didn't bog down, just turned off like the red mushroom button was pushed in. Now, no start from basket or ground. No error codes in the basket. Ignition/start module at machine lights up when key is rolled over, though if you try to start it none of the other lights come on (start relay, tach, start input, etc.). Starter relay clicks but that is it. Battery reads good voltage. Any ideas for troubleshooting?

Going to have to reference your wiring schematic, get out the 12V test light and start following the power circuit. Keep it simple, don't worry about the platform, sort it out for the lower controls first, then you may find the platform controls come back online. Check your power supply circuit, all it takes is one of the contact blocks on the key switch to go south to kill one, I've seen it a hundred times.

Appreciate the reply. Found out that there are two buttons on the ground control panel that are fuse breakers. Never knew what those were, now I do.... One of them was tripped, so that gives me a leg up on tracking down the problem if it happens again. Have a new breaker ordered in case it is bad.

The Z45/25 typically had two circuit breakers depending on the model. One provides circuit protection for controls, sends power to the lower key switch which selects upper or lower controls. The other circuit breaker typically controls hard components, Genie ignition/start module, engine, starter, alternator, throttle solenoid and the various function solenoids.

Good to know thanks for that. The second circuit breaker that controls hard components was the one tripped so that narrows down the culprits. I just replaced the high idle solenoid a few months back, but maybe I got a bad one.

Triple Divide said: Good to know thanks for that. The second circuit breaker that controls hard components was the one tripped so that narrows down the culprits. I just replaced the high idle solenoid a few months back, but maybe I got a bad one. Click to expand... What model is that Deutz engine?

Deutz F3L 2011

Triple Divide said: Deutz F3L 2011 Click to expand... That's what I figured. Not saying it's your problem, but something you need to look at. As the Deutz 1011 and 2011 engines age, so does the wiring inside the air box. Except for the battery connection to the alternator, all the wires for the engine harness go to an Amphenol connector at the right front of the air box. You need to remove that cover for the air box and inspect the wires coming from that connector. Over time heat from the engine degrades the insulation of those wires making it crack or break away. Those wires go to the alternator exciter, the oil pressure switch, and the throttle solenoid. Take that cover off and inspect those wires. Second, the Duetz 1011 and 2011 have a timing belt. That belt and tensioner should be replaced every 2 to 3000 hours of engine service. The last thing you want to happen is that timing belt let go. Those are an interference fit engine, if that belt lets go bad things happen to the valve train.

Great tip on air box wiring, appreciate it. Electrical is not my strong suit. I'll check that out first off. I'm going to have to look up Amphenol connecter. Never heard of those before. One of the first things I did when I picked up the lift was change out that timing belt as I didn't know when it was done last. I try to be good on maintenance stuff. It crossed my mind that the engine locked up, I pulled the cover and rotated it by hand to make sure that wasn't the road I was going down....

Amp (Amphenol) is just one brand of connector out there, along with Deutch, Delphi, Bosch, many others. It's just an identifier.