Trianco oil burner will not fire up and goes to lockout

[littlerichley]

My Trianco (TRO 28/32) oil burner will not fire up and goes to lockout.

Symptoms:

When switched on the fan starts and the igniters then spark. Whilst oil can then be seen coming out of the nozzle it does so as a very fine stream, rather than (as I assume it should be?) a fine mist. As a consequence it does not pass close to the igniters and so does not fire up causing a lockout.

What I have tried so far:

I have replaced the nozzle and also removed the solenoid (Suntec IP 52). This gives a reading of 1.8 K Ohms and when connected to the mains gives a slight buzzing sound when pressed to the ear. I am assuming it is working?

Other possible reasons for the fault:

If the oil is not coming out as a mist suitable for combustion, then is it possible that the pump is not providing the correct pressure, or the valve the solenoid operates is not opening fully? I am inclined to believe the control box is OK as it seems to be giving the right signals at the right times?

I am certainly no expert, I do not know what the oil emerging from the nozzle should look like (mist or stream?).

Any advice gratefully received.

Thank you

 

[oilhead]

Check pump pressure. Sounds like a duff pump.

 

[littlerichley]

Many thanks for your prompt response. I've been giving some thought to getting a new boiler given the age of the Trianco unit and I guess this is the prompt I needed.

 

[Tibbot]

You can't do any fault finding on an oil boiler's burner without a pressure gauge. I'd recommend you use one or get help before buying a new boiler.
The TRO's are worth keeping unless the water jacket rots.

 

[oilhead]

Agree with Tibbot. A complete new burner is very reasonable and on a sound boiler is a viable option.

 

[littlerichley]

Thanks for these suggestions.