Fluctuating water
temperature
Incorrect setting
on Logic Module of
Aqualisa SmartValve
TM
If hot water supply is from a combination boiler - the
Logic module mode MUST be set to COMBI.
Airlock in water
supplies (for gravity
fed systems only)
See “Air lock” in Possible Cause section.
Hot water
temperature too high
Ensure hot water supply temperature is below 65ºC
(minimum 55ºC for stored water and 50ºC for
combination boilers).
Communications issue Check data cable connections.
Combination boiler
unable to meet
demand
Check that the hot water temperature is stable at
another high flowing outlet (e.g. bath hot tap - run
at maximum flow rate), additionally run a cold outlet
at 1/3 of a maximum flow rate.
Temperature
too low
Low hot water
temperature
Check that domestic hot water temperature is a
minimum of 55ºC for stored water and 50ºC for
combination boilers.
Logic Module
temperature setting
too low
Refer to section: Controller Commissioning
Instructions.
Temperature too
low - Controller
temperature ready
display does not
stabilise
Mixed water supplies Water supplies MUST be from the same source:
MUST NOT be gravity hot and mains cold.
Unbalanced water
supplies
For mains fed systems the cold and hot feeds should
be as evenly balanced as possible - especially for HP
unvented systems.
Combination boiler
unable to meet
demand
Check the hot water temperature is stable at
another high flowing outlet (e.g. bath hot tap - run
at maximum flow rate), additionally run a cold outlet
at 1/3 of a maximum flow rate.
Controller
remains
illuminated
after switching
shower o
Poor cable connection Check data cable connections are making good
contact and are fully inserted (this includes
installations where a wired remote is fitted).
Object within range
of proximity sensor
and activating Auto
Wake-up
Check user guide to see if the model in question
has this feature - and if so go to settings menu for
guidance on disabling this function.
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