Ideal Elan 2 boiler fault!

[sasik]

The boiler work for about 30 sec and then stop, 30sec later it will come on again and so on. The boiler working like this for the last two days.
The problem occured when the system demand for heating and hot water.

What could be the problem?

 

[sonray ltd]

is the heating/hw getting hot ?

 

[Andrew Rowe]

I've found this problem before, it wore out the gas valve soleniod. I found an resetable over heat stat was cuasing the problem.
Try replacing, relatively inexspensive.

Regards Andy

 

[sasik]

The radiators are ok, but the water in the cylinder are only warm!

 

[Andrew Rowe]

Have you checked cylinder stat?
Do you have a 3 port or 2x2 port moterised valves?

If 2 port valve on HW lock open valve (if possible) when calling for heat, does cylinder flow and return get hot?

Do you have any way of venting cylinder coil? (sometimes air becomes trapped reducing flow)

If venting the cylinder fails, possible component faillure or wiring fault.

Regards Andy

 

[sasik]

Hi Andrew

At first I thought the problem was with the hot water only, but I have the same problem when the heating system is on demanding (boiler run for 30sec then off for 30sec...)
So I don't know if I have a problem with the boiler or with one of the components around the hot water cylinder.