Mira 415 Installation And User Manual page 40

malfunction
Shower pattern
collapses when
another hot tap is
turned on.
Shower pattern
collapses when
anothercold tap is
turned on.
Shower control
operating sequence
is "off, hot, cool".
Shower insufficiently
hot without pressing
red button and
rotating further.
Shower control
"drums" whilst in
use.
Shower control
"thumps" when
another tap is
suddenly turned off.
Cause
The heater is not
capable of supplying
several outlets at the
same time.
(a) Property water
supply pipe partially
blocked or undersized.
(b) Property stop or
servicing valve not fully
open.
(c) Insufficient mains
cold water pressure
Hot and cold water
supplies have been
connected in reverse.
Adjustable maximum
temperature incorrectly
set.
Supply pressure
in excess of 5 bar
maintained.
Inlet check valve faulty.
remedy
Reduce the
simultaneous demand.
Contact the Water
Undertakers or your
installer.
Open valve.
Contact the Water
Undertakers or your
installer.
Refer to the
section "Reversed
Connections"appearing
earlier in this guide.
Refer to the section
"Adjustable maximum
temperature setting"
appearing earlier in this
guide.
Fit pressure reducing
valve. Refer to the
section "Installation
Notes".
(a) Remove cartridge
and if possible clear
obstruction in check
valve
(b) Renew cartridge.
40
a B C
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