User guide

24
USER MAINTENANCE
If you require a Mira trained service engineer
or agent, refer to section: ‘Customer
Services’.
Filter Replacement
Exposed Models
1. Isolate the water supplies.
2. Turn on the ow control knob to relieve water
pressure and to drain any residual water.
3. Unscrew the shower hose or rigid riser from
the mixer outlet.
4. Using a suitably sized wrench loosen both
compression nuts.
5. Using a 2.5 mm hexagonal key (supplied)
unscrew the grubscrews securing the mixer
to the backplate.
6. Remove the mixer.
7. The lters are retained in the elbow inlet,
remove them and inspect for debris blockage.
Clean each of the lters under a jet of water to
remove any lodged particles.
Compression
Nuts
Hexagonal Key
Grub Screw
Filter
Elbow
FAULT DIAGNOSIS
Symptom:
• Only hot or cold water from the mixer outlet.
• Outlet temperature too hot / too cold.
CauseRectication:
• Inlets reversed (hot supply to cold supply).
Refer to section: ‘Reversed Inlet Supplies’.
• No hot water reaching mixer.
• Check the lters for any blockage refer to
section ‘User Maintenance’.
• Installation conditions outside operating
parameters, refer to sections: ‘Specications’
and ‘Commissioning’.
• If the temperature is too cold and you have
a combination type boiler it may not be
producing sufciently hot water at desired
ow rate (refer to ‘Specications’). Fit ow
regulator (supplied) to shower valve outlet.
For more information contact Mira Showers
or visit the website.
—————————————
Symptom:
• Fluctuating or reduced ow rate.
CauseRectication:
• Check the showerhead, hose and lters for
any blockage.
• Make sure that the maintained inlet pressures
are nominally balanced and sufcient, refer to
section: ‘Specications’.
• Make sure that the inlet temperature
differentials are sufcient, refer to section:
‘Specications’.
• Air lock or partial blockage in the pipework.
• Flow regulator tted incorrectly.
• Low ow causing combination boiler to cycle.
Operate at preset maximum ow.
• Mira Minilite Eco models only - ow regulator
causing combination boiler to cycle. Replace
6 L/Min ow regulator (tted) with 8 L/Min ow
regulator (supplied).
—————————————
Symptom:
• Water leaking from the showerhead.
CauseRectication:
• Normal for a short period after shut off.
• Check that the pressures are not in excess of
the specications for the product.
• Renew the thermostatic cartridge.