4000

  1. H

    Worcester Greenstar 432kHz noise?. SOLVED. Honeywell Gas Control Valve, faulty batch.

    Worcester Greenstar 4000 combi boiler 25kW Install new September 2021. Last gas safety check October 3 2023 Combustion reading 0.0003 initial 0.0003 final. (is that very low?) 432kHz Drone, howl, noise from within boiler case. No pipe / rad knocks. Boiler located upstairs. External 30mm...
Back
Top