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Symptom
Outlet water
Mixer cartridge is partially
temperature
blocked.
too hot/cold.
Installation conditions outside
operating parameters.
Hot water temperature is less
than 10°c above the required
blend temperature.
Instantaneous water heater
not igniting because water
flow rate is too low.
Shower
Working pressure too high.
controls noisy
while in use.
Possible Cause
Remedy
Check cartridge for any
blockages and clean as
necessary. (See page 10).
See Water Supply
Requirements page 4. Refer to
Cleaning the Cartridge section
see page 10.
Adjust hot water temperature
or wait for water to reheat if
stored system is used.
Increase water flow rate
through the system. Check
hose and cartridge - clean or
replace. See page 10. Contact
the boiler manufacturer.
Fit a pressure reducing valve.
15
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