Hi ,
Can anyone recommend a sealant to seal Flashband and glass.Silicone does not work because of a reaction between the biruman and silicone.
Regards
Dave
Hi,
When boiler is programmed for hot water only,the central heatng comes on as well.Boiler runs for 20 minutes then goes off until hot water is used.The CH programme light is off.Any ideas?
Regrds
Dave
HI,
THJanks for reply.I should have said the valve works ok when CH or CH and hot water ere selected.Just a problem wheh HW only is selected.
Regards
Dave
Hi,
Please can anyone help.I have a heating system with a Honeywell mid-position valve (V 4073A).When hot water only is selected the central heating comes on as well.I suspect the valve is faulty.Does anyone have wiring diagram of theINTERNAL wiring of the valve?
Regards
Dave