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    Potterton Suprema 40 Locks out - Fan pproblem ?

    I have a Potterton Suprema 40 Boiler. It started making a noise recently which sounds like Fan Noise. There was some trapped Air in the Air Vent in the Airing Cupboard near he Pump and the Valve. Releasing that helped the Noise a bit. Today, I cleaned the Expansion Tank in the Loft before adding...
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    Can a Shaver Light cum socket be connected to the Earth instead of the Neutral ?

    Hello forumites, I had a Vysal Shaver Light cum Dual Voltage Charging Socket which was working perfectly until the builders opened it up for Tiling. Now, after they re-connected, it doesn't work. I bought 2 new Shavers and none would work either. On checking, I found that they do work when...
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    Boiler ignores Progrrammer whenever Room Stat calls for Heat

    Some time back I posted a query in this Forum about Boiler either ignoring the Room Thermostat or the Programmer. I was suggested (by D_Hailsham and others) to get the Sunvic MoMo 3 Port Valve replaced by a Honeywell. After getting this done (Honeywell V4073A), the Boiler is now completely...
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    How difficult it is to replace a Sunvic MoMo Valve

    Could someone suggest how much re-wiring is needed to replace a Sunvic MoMo Valve by a Standard spring one like Honeywell (apart from draining the system). Is it just the wiring between the Actuator and the Programmer or do the wirings in the Room Thermostat and the Boiler need to be changed too...
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    Drayton Digistat 1 not turning the CH OFF

    I have a Wired Drayton Digistat 1 which is battery operated (2 cells). The Programmer is a Honeywell 6400C with 3 On/Off and 7 day setting and the Boiler is a Potterton Suprima. There is a Mid Position 3 port Valve. When the CH is ON through Programmer), the Boiler runs irrespective of what...
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