View the thread, titled "Valiant EcoTec plus 831 strange noise!" which is posted in UK Plumbers Forums on UK Plumbers Forums.

Evening all,

My EcoTec 831 has begun to make a strange noise, the plumber suggested bearings in the fan but it's intermittent and goes when rebooting. Can go a good week without it happening and HW and CH working fine. Any Ideas? Thanks in advance. Video is attached.

Arron
 

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  • HwVideoEditor_2020_12_06_171317.mp4
    8.5 MB

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