User guide

28
Symptom Cause Remedy
Maximum water
temperature too
hot or cold.
Maximum water temperature
set incorrectly.
Reset maximum water
temperature. Refer to ‘Maximum
Temperature Setting’ in
Commissioning section (page 25)
and ‘Adjusting the Temperature’
(page 27).
Outlet water
temperature too
hot / cold.
Inlet fi lter is partially blocked. Check insert fi lters for any
blockages and clean as
necessary.
Installation conditions outside
operating parameters.
Refer to Installation
Requirements section (pages
12-16).
Service shower valve as
recommended. Refer to
Maintenance section (page 26).
Water
temperature
too cold -
maximum water
temperature
incorrectly set.
Hot water temperature is less
than 10˚C above the required
blend temperature.
Adjust hot water temperature or
wait for water to reheat if stored
system is used.
Instantaneous water heater
not igniting because water fl ow
rate is too low.
Increase water fl ow rate through
the system.
Check cartridge inlet fi lters
and clean or replace. Refer to
Maintenance section (page 26).
Contact the boiler manufacturer.
Instantaneous water heater
not igniting because water
pressure is too low.
Increase water pressure through
system.
Contact the boiler manufacturer.
Only hot or cold
water from
shower valve
outlet.
Inlet water supplies are
reversed (hot to cold supply).
Check the connections are the
correct way round. Hot on the
left and cold on the right when
viewed from the front. Rework
pipework as necessary.
Inlet fi lter is partially blocked. Clean or replace, fl ush through
pipework before refi tting.
Troubleshooting - cont.
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