Mike asked ... Bosch WTA74200GB Vented Dryer?    |    Stuart G asked ... C3 Front Wiper control problem?    |    Clare S asked ... Repair Electriq dehumidifier?    |    Bob asked ... Charger fault?    |    Terry nelson asked ... How to remove the flexible shaft from a curved shaft ryobi t?    |    Click here to ask your question

why does my boiler fire up on its own?

I have a worcester greenstar 28ijunior boiler and every so often it fires up on its own(ch not on, no hw demand) and runs for about 1 minute then stops, why is this?
tom staples, May 2009
Probably its hot water pre-heat function.

Take a look and see if the "Eco" button is lit up. If not, press and hold for a few seconds then let go. When Eco is lit, the pre-heat is disabled.

Bunslinger, May 2009
link Click here to see other fixes for Worcester Greenstar.