Becket burner not firing

[Mark17]

Hi guys. I have this landa mvp 3-3000 with 350 hrs on it and the burner is not firing. The last few times i used it it did not fire untill after sqweezing the wand a couple times. yesterday it fired after 10 minutes of washing under pressure. It seemed to burn well and clean after it finally came on, other than a few puffs of smoke now and then, I guess it was going on and off.

I need help on where to start troubleshooting, spark, fuel, airflow and how do i test these things without the engine running? Do i connect a battery to the volage regulator for power?

Thanks for any help in advance

 

[FullBlast]

Good morning and welcome to the forum. I sure some others will chime in here to help you soon, but you will get a better response if you fill in your signature line.

 

[Russ Johnson]

Do you have the wiring diagram for the machine? Does the key start on the engine work, or are you having to pull start it?

 

[Paul Kassander]

Sounds like the pressure switch or flow switch is sticking, I would also check your fuel filter if it runs for a while then shuts off.

 

[Mark17]

Ok, went to signature. I do have the wiring diagram and thought about checking the flow switch. This unit does not have a key start. It's a Honda 9 hp, pull start.

How do I power the burner to check these things without the engine running

 

[Russ Johnson]

Scan and email me the wiring diagram. It'll help me help you.

 

[Russ Johnson]

With a 12 volt battery, you can run a jumper from the + to the side of the circuit breaker with the 2 wires attached and a jumper from the - side to any good chassis ground. Turn the switch on and the motor should start. Turn on a water flow through the machine, and it should fire.

 

[Mark17]

Great, thanks Russ. I thought that was the case, I just wasn't sure. I'll try that yo get me going on things and let you know what I come up with.