750A control box problem

[Neddy flanders]

low level sensor not working,
infact none of the sensors on any shafts or fan are working, yet fan speed is and tramliners are. any help appreciated

 

[all_arable]

low level sensor not working,
infact none of the sensors on any shafts or fan are working, yet fan speed is and tramliners are. any help appreciated

Have you turned the sensors off?

 

[Simon Chiles]

low level sensor not working,
infact none of the sensors on any shafts or fan are working, yet fan speed is and tramliners are. any help appreciated

Which control box do you have, is it an ESC?

 

[Neddy flanders]

Have you turned the sensors off?

maybe, didn't know you could?

 

[Neddy flanders]

Which control box do you have, is it an ESC?

black with white face, small screen at top, keypad underneath. landwheel drive not electric motor. Accord/ KV on box Yes ESC

 

[Simon Chiles]

black with white face, small screen at top, keypad underneath. landwheel drive not electric motor. Accord/ KV on box Yes ESC

Like this

It should talk to a signal distribution box that forms the link between the separate sensors and the actuators. I’d imagine that the lead between it and the ESC box is broken/disconnected/dirty joint(s).

 

[Neddy flanders]

yes, none of the alarm signals are working, no noises atall

 

[Simon Chiles]

yes, none of the alarm signals are working, no noises atall

Just looked in the manual at the fault section and a common fault for the fan, and wheel sensor is cable in signal distribution box. Brown=+12v, Black=signal, blue=Ground. The metering device is green/yellow=signal if the photo of the page doesn’t come out well.

 

[Neddy flanders]

thanks. been using box for 10yrs without problem so cant see its to do with wires. have I pressed a combination of keys to override alarms. also its a different tractor, still a JD thou with same power plug