Mikuni MX40 - MX40 Wiring Diagram

Mikuni MX 40 Troubleshooting flow chart
Control box : '8 ' flashes - Indicating ' High or low voltage '
Is the vehicle / boat
battery charged ?
Charge batteries
No
Does the heater
start ?
Yes
Does the heater
operate ?
Problem solved
Yes
Check supply
cables
to heater
Contact authorised
dealer
Replace control
box
Yes
No
No
Does the heater
now operate ?
No
Problem solved
Yes