Question about Honeywell Programmable Thermostat Heater

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Blank display on ideal isar 2 he 30

My boiler has a blank display when there is no demand i run ch it goes to c and hot water it goes to d but when in stand by nothing when it should be a 0

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  • JENNO50 Mar 03, 2009

    Cheers but there was no permenante live to the boiler

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May just be a defective display PCB, byt more often than not, its the more expensive main primary PCB. Ideal actualy modified this PCB, and has a pre-fix of VF on it, and is orange in colour

Posted on Mar 03, 2009

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