On 7/12/2016 8:45 PM, T i m wrote:
Hi all,

Mum has an old wall mounted, low capacity, b/f conventional gas boiler
and she's trying to keep it running till she revamps the kitchen.

It works fine (for what she needs anyway) but now and again the
overtemp stat trips, even though the main stat is set quite low and
I've never see it other than just 'ticking along'.



Cheers, T i m


Suggest putting in a system cleaner run it for a week then flush .. may
just be sludged up