Halstead ace high firing up and turning off

[Chadlebowski]

Hi. I have just moved into a property that has been vacant for over 3 months. There is a halstead ace high boiler installed and this was serviced and certified in full working order during the survey.
The pressure gauge was down to zero, I have filled the system to 1.5 bar, and checked the overheat reset button.
Whenever I turn on the hot water or heating, the boiler engages (fan\pump starts, boiler fires) but then stops almost immediately afterwards and the power light flashes. If I reset the boiler, the power light stays on constantly.
What can I do to get this working?

 

[stem]

If the green power on LED is flashing, that usually indicates a problem with the water flow through the boiler, or the flow switch that detects the water flow. Turning the mains off and on should reset it. Wait a few minutes before trying again as there is an anticycle timer. If it keeps tripping then it will probably require professional investigation, something may be preventing flow such as an airlock, or the flow switch may be faulty.

When the green power on light is 'steady' that just means that power is present at the boiler regardless of whether it is actually running or not.

 

[Chadlebowski]

Thanks for your advice - I will try that this evening.

Can I turn the water off at the main stopcock, or should I use the supply to the boiler?

Also, I read that the filling loop should be disconnected after the system is filled. Is that correct? And also, is it normal to have a filling loop with only one valve on it?

 

[Dan Robinson]

Hey, it's a Halstead. Be grateful it fired up at all

 

[stem]

Sorry, by mains, I meant electricity, not water.

 

[Chadlebowski]

Yes - have turned off the mains and left it; same problem.

 

[Agile]

Well its obviously faulty and will need an engineer to diagnose the fault.

So who serviced it and certified it as in full working order?

I suspect you should call him back as it obviously is not!

Tony