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2. Installer Maintenance
The Mira Event XS is one part of an entire plumbing system. The fitting of a pump
places additional requirements on the plumbing system. Some systems may require
plumbing modifications to allow them to cope with higher flow rates.
Providing the Mira Event XS has been correctly installed and is operated as advised,
difficulties should not arise. Fault diagnosis and maintenance must be carried out
by a competent person for whom the fault diagnosis table is provided.
In the event of any of the following tests failing, re-check as appropriate before
contacting the Kohler Mira Ltd (our contact details can be found on the back cover
of this guide).
Malfunction
Cause
Remedy
Shower runs for a short time
(30-60 seconds) then flow
reduces, splutters or stops.
Aggravated when other hot
taps are in use. Less evident
on full cold.
Air is being sucked down the
vent pipe, as the hot take off to
the shower is too high up the
pipe.
Refer to plumbing system
diagrams in section:
'Installation Requirements'
.
Note the 1 metre hot take-off
dimension. Consider increasing
cold feed pipe to cylinder to
28 mm diameter.
Shower runs cool after a short
time (1–2 minutes) then flow
splutters.
Air ingress into hot pipework.
Refer to plumbing system
diagrams in section:
'Installation Requirements'
.
Flow of water virtually stops
and surges on/off, after a few
minutes.
Insufficient storage of cold
water in cistern (230 litres
recommended).
Increase storage of cold water
cistern.
Shower runs cold after 5–10
minutes.
Insufficient storage of hot water
in cylinder.
Increase storage of hot water.
Shower temperature affected
by use of adjacent hot/cold tap.
Insufficiently sized pipework
for both systems to be used
together.
Increase pipe sizes or
separately feed shower. Refer
to plumbing system diagrams
in the section:
'Installation
Requirements'
.
Maximum shower temperature
too hot.
Incorrect setting of maximum
temperature.
Reset maximum
temperature, refer to section:
'Commissioning'
.
Shower temperature too cold.
Maximum temperature
incorrectly set.
Hot water cylinder temperature
less than 12°C above shower
temperature.
Reset maximum
temperature, refer to section:
'Commissioning'
.
Adjust cylinder temperature.
Note!
It is recommended that
the stored water temperature
does not exceed
65°C
.
