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  1. S

    Is my heating programmer at fault?

    Will recheck the room stat / cylinder stat wiring as took a pic prior to changing but expecting all good.
  2. S

    Is my heating programmer at fault?

    No its a Sunvic TLX9021
  3. S

    Is my heating programmer at fault?

    Sorry yes, it is pumped but not a combi boiler. The thermostat clicks on fine and seems to work fine. However, on 2 occassions have come home to hot house and not so hot water. When tried to turn down thermostat nothing doing. Light stays on and will not click off. When I reset programmer / or...
  4. S

    Is my heating programmer at fault?

    I have recently replaced my mid-port valve as had died and also my thermostat for good measure. Replaced with like for like (Honeywell / Sunvic). All working great but during afternoon the thermostat stays on and will not turn off. When I reset the programmer all goes back to normal. Have...
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