Hello,

I've done a couple of searches and found a possible answer. what is happening is (standard behaviour?)...

lower orange light is on. press the reset button, lower orange light switches off. the motor fires up, and a couple of seconds later, the whoosh

anything from a couple of minutes to 15 minutes later, the whoosh stops, I hear a relay click. the motor stays on for about 30 seconds, then the motor stops, and the lower orange light on the control panels lights up. (boiler is quiet)

some searches have said it might be the transformer? I did a search and found these two

theheatxchange.co.uk/worcester/transformer/87161566960/sku_WOR87161566960
theheatxchange.co.uk/worcester/ebi-052f0004-transformer/87161427300/sku_WOR87161
427300

does anyone know the difference between the two and which one I want? or if anyone has a different link to the item. or a different fault suggestion

I should say, the boiler (owned by parents) has been looked at by an engineer [don't know which] more than once, he couldn't find a fault.

[in advance,,thanks]

Does it restart if you reset the thermostat, sorry I can't remember which order the two lights are in.

Sounds more a temperature/system problem, to be honest so I wouldn't change anything just yet

Fingers crossed you have it sorted