This question is regarding Mira Sport 10.8kW - post 1998 - Shower Spares

Mira Sport 10.8kW - loud buzzing noise

My Mira Sport 10.8kW has suddenly started making a loud buzzing noise when in operation and the temperature control is set to a comfortable showering temperature. Increasing or decreasing the temperature stops the buzzing noise, but then the shower is too hot/cold! The noise seems to be coming from the top of the heater tank, near to the Thermal Switch, but it's difficult to judge.

Can you advise whether replacing the flow valve assembly might fix this problem?

Thanks!
Asked 12 years ago by Anonymous
http://www.showerdoc.com/MIRA-415-48-Mira-Pcb-Assembly-415-48

The buzzing may come from the relays on this board and this may be the source of the fault. But this is hard to check, you could start with the following,

Forgetting about the temperature turn the showerfrom fully hot to fully cold at fully hot you should have not much more than adribble coming from the hose and on fully cold you should have a good strongflow, if you do not have this difference then you may have a faultyflow valve.

and if this is ok then suspect the pcb.


Answered 12 years ago by Anonymous

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