Radiators on when hot water only selected

Hello again

Had a problem a couple of weeks ago with my boiler and turned out to be the stopcock (cheers gasguru).
Now when i select hot water only the radiators come on as well.
Cue grumpy wife waking up in a sauna of a flat this morning.

Now i reckon its because i've been messing about with the ACL Lifestyle mid position valve.

Any thoughts anyone??

Cheers

Chris

Get the wife to operate the timer while you watch the indicator position on the three way valve, could be locked in manual position.

Hi Gasman

if you mean the black slider on the front, it did not move when I switched between water and heating and heating only.

Sorry havent replied sooner. thanks for your help.

Cheers

Chris