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    honeywell CM921 + BIASI M90F 24S

    Hi, help please, BIASI M90F.24S approx 7 year old, fitted honeywell CM921 rf thermostat - wired correctley - sender works with receiver but boiler fires at will - thermostat is working with receiver but will not fire boiler, spoke to both BIASI & HONEYWELL for the last week, they can not help -...
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    biasi M96 leak at diverter actuator

    Hi any help please ? biasi M96 24SM/B has developed leak at base of actuator mounted on top of diverter valve, do I need complete service kit or just a diaphram ? have not looked yet as thought would get advice first, any help would be appeciated, also is a blown digram available anywhere for...
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