Troubleshooting: Detailed
Use the block diagram as a guide
1. Verify the battery charger is functional by plugging it into the charge port on the back of the mower and let it charge.
2. If necessary, further test the charger and charge port. Replace as needed. Charge port, Interlock, and temp sensor should be replaced together.
3. Test the key switch by operating it, making sure it has a solid “click” when turned on or off. Replace if necessary
4. Test and replace main relay and diode as necessary. (Note: when you turn the mower on, you should hear the relay click)
5. If necessary, check the main fuse. If it is blown, check the system for signs of a short circuit before replacing the main fuse
6. If the fuel gage has power, but not display or malfunctions, replace the fuel gage
7. If ONLY the fuel gage works when the key is turned on, test/replace the 48-to-12V DC converter and 5A fuse as necessary
Note: this fuse is a common part available at any automotive store
8. If the mower will not drive:
a. Make sure the seat switch is functional and activated
b. Test the F-N-R switch. Replace if necessary
c. Test the accelerator transducer. Replace if necessary
d. Test the brake switch. Replace if necessary
e. If the mower still will not drive, test the Drive Motor controller. Replace if necessary
9. Test the blade operation by pulling up on the PTO switch
a. Make sure the seat switch is functional and activated
b. Test the master and slave motors. Replace as a pair if found bad
c. Test the master and slave controllers. Replace as a pair if found bad
d. If the mower blades still will not operate, replace the Drive motor controller (same as step 8e above)
10. If the mower works except for the headlights, test the headlight switch and headlights. Replace as necessary
a
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