Mira Excel Temperature adjustment
Thanks.
Yes the valve could be stiff due to the age and extrapressure.
However if you remove the cartridge you will find that theretwo holes that the red key will fit into (see the link below) if you don’t have the red key a pair of long nosedpliers will do.
On the back of the cartridge stamped in to the rear arearrows pointing to high and low push the key or pliers into the holes and turnto the high setting.
When it is out make sure that the cartridge filters areclear.
This should solve the problem however if not then it is justthe age of the cartridge and the extra pressure that is causing the problemtherefore it will have to be replaced.
Answered 12 years ago by The Shower Doctor
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Mira Excel/Select Thermostatic Cartridge Assembly - 903.33
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