have just fitted a used 8.5e there seems no preasure at shower head an temp knob dont do a thing an the water stays to hot to use mains water is fully open an no kinks in any pipes so have no ideas
I have same problem with an 8.5scl that worked fine for 1 year then suddenly hot low flow with no effect from control knob. I removed the headset then the pipe then checked the inlet filter then took it all off and checked the inlet pressure - all fine. I have just ordered a new engine for it (£45) to see if it cures it. I'll let you know if it does.
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