ITR Hurricane Heater

[TBW]

Can anyone shed any light on why an ITR Hurricane heater will not start? (the boiler)
Has been very dependable. Fuel is full (fed from port fuel tank, 625 gallons).
Water / antifreeze is full. It gets power. Started for just a short minute yesterday and then stopped. Fuse is ok. Not powered through a breaker, just the control box that says ITR heating.
Only thought is the fuel filter; will change it shortly.
Puzzled.

[Paul L]

Look at the fail codes on the control unit. How long has it been since you clean tbe nozzle?
ITR tech support has been very responsive for me.

[TBW]

Cleaned nozzle; pretty clean. Fuel on the boat gets a fair amount of attention.
13.4 volts in. It acts like it wants to start but does about 3 cycles and stops. Air in (out?) the black hose to the right and the little pump upper left cycles. Fault 7 - no flame.
Will have to call Monday. More youtube, maybe air in the fuel line now after taking the nozzle out.
Your advice appreciated.
TW

[Paul L]

The 3 attempts is what it does and then if it doesn't see a flame it shuts down. Not sure if you can hear the compressor on the side start. If not, you can try giving it a rap with a mallet. Worked for me once when the brushes were probably stuck.