Mikuni MX Series Troubleshooting Flowchart

No
Does the water
pump
start ?
Replace control
box
Problem solved Does heater start ?
No
Yes
Yes
Does the air motor
start after approx
40 seconds ?
Does the fuel pump
click ?
Yes
No
Replace 7.5 A fuse
Does the air motor
operate ?
Replace air motor
No
Replace fuel pump
No
Does the fuel pump
click ?
When fuel primes
problem should be
solved
Yes
Yes
Does combustion
start ?
( roar from exhaust )
Yes
Does heater start
but fails after 3
attempts
Check that fuel is
present
No
Does the heater
now start and run ?
Problem solved
Yes
No
Yes
Clean the flame
sensor
( see note )
Does the heater
now
start and run ?
Problem solved
Yes
No
Contact an
authorised
dealer
No
Mikuni MX 40 Troubleshooting flow chart
Control box : '1 ' flash - Indicating 'Ignition failure'

Mikuni MX Series Specifications

General

Brand	Mikuni
Model	MX Series
Category	Heater
Language	English