This question is regarding Aqualisa Hydramax Thermostatic Temperature Lever - 235003

Aqualisa/ Hydramax shower control

Hi, before I purchase any part , I wish to ask this question. The control on/off knob has become very stiff over the years. Is this something to do with the thermostat/cartridge? Which part do you think I need to replace?
Asked 6 years ago by Peter
Yes it sounds like it could be a cartridge fault.

Answered 6 years ago by Barrie Seabright

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