Mira 8.5kW sprint

The shower runs cold, then the thermal switch operates and powers up the element. You can then hear a boiling noise and the thermal switch opens again making the water cold again.



I assume it's the thermal switch, but why does the element boil up like this? Does the thermal switch reset itself? as this is what seems to be happening, other makes are one shot devices that have to be replaced?



Don't want to change thermal, and then find its a dodgy heat exchanger?



May be not worth repairing.
Asked 13 years ago by Paul
Sounds as though the thermal switch is operating correctly and the problem is not enough flow through heating can.
Check that hose is not kinked or collapsed internally and then shower head is clear.
Check that mains stopcock and any isolation valve in the feed to the shower are fully open.
Check that inlet filter is clear.
If all above are ok the it is either the pilot or flow valve at fault depending on which model of Sport you have.
If you click on the link below it will take you to our Mira page and you can identify your model and order the part required online.##

http://www.showerdoc.com/shower-spares/mira

Answered 13 years ago by Anonymous

View Product and Order Online:

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