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ps i'll change the batterys in the thermo to see if that works [albeit it should come up a low battery icon] - which it doesn't. I'll report back

Hi there, The wireless thermo/receiver is a Sunvic TLX 7506 RF digital room thermo Sunivc TLX 1206 RF receiver. I did change the receiver unit last year as it was not talking to the boiler, but last time it showed fault codes [with red lights] to indicate a fault. This time it also...

Hi there, Its summer so i haven't needed to run the CH for 4 months or so. I decided to let the CH run for a bit so i called for CH, and there seems to be no hot water being pushed out to the rads. The Boiler seems to be creating the HW but it seems like its not getting to the rads. I...