Plumber recommendations for an unvented immersion heater?

[flipper81]

Could anyone recommend me a qualified electrician/plumber (I'm not sure which) to take a look at my Heatrae Sadia megaflo immersion tank? The off-peak immersion heater provides hot water intermittently. It is unvented so I understand that I need someone with a particular qualification.

I live in London SE1.

Thanks!

Philippa

 

[Whitespirit66]

If its Economy 7, and the immersion is going on and off at odd times, make sure the time on its clock next to the leccie meter is correct.

If the E7 meter is knackered, it will need replacing.

 

[flipper81]

The old economy 7 meter was replaced for a digital one last week and the clock is OK.

Thank you - all suggestions are gratefully received!