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    Vaillant eco tec pro 428 with VR66, VRT350 (ebus) and Vr10

    I have an eco tec 428 boiler running in sealed system with VR66 VRT350 wired and A VR10 NTC sensor, System runs well in central heating mode but i cannot call DHW VRT timer is set so that DHW is on, VRT350 shows hot water temp in installer menu and boiler off during DHW demand time and HEATING...
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