Akw Arka Thermostatic Cool Touch TMV2 Instrukcja instalacji - Strona 8

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troubleshooting

Problem
no flow or low
flow rate and
/ or varying
temperatures
Water leaking
from shower
head
maximum water
temperature is
too hot or cold
outlet water
temperature is
too hot or cold
Water supply
temperature is
too cold
only hot or cold
water from
tmV outlet.
8
Cause
partially closed stop or service valve in
water supply pipework to the mixer valve.
instantaneous water heater cycles on and
off as the flow rate or pressure is too low.
Head of water is below the minimum required
inlet filter is partially blocked.
Hot or cold water being drawn off
elsewhere causing pressure changes
or instantaneous boiler changes.
imbalanced inlet pressures.
airblock or partial blockage of the pipework.
no hot or cold water reaching
the shower valve.
this is normal for a short time
after turning off.
Shower flow control valve failing to close
fully, possibly due to water borne debris.
flow control valve seals damaged.
maximum water temperature
is set incorrectly
inlet filter is partially blocked.
installation conditions are outside
operating parameters.
Hot water temperature is less than 10 °C
above the required blend temperature.
instantaneous water heater is not igniting
because water flow rate is too low.
instantaneous water heater is not igniting
because water pressure is too low.
inlet water supplies are reversed (hot to
cold supply).
inlet filter is partially blocked.
Solution
one stop or service valve.
increase water flow rate
or pressure through system.
Contact the boiler manufacturer.
Refer to specifications section.
Clean or replace. flush pipework
before refitting.
Do not use other water outlets when using
the shower valve.
if pressures are unbalanced a pressure
reducing valve should be used.
flush pipework to ensure removal
of debris and any airlocks.
Check hot and cold feeds (the valve will
shut down if either supply fails.
adjust the angle of the shower head as
necessary to vary draining time.
Remove flow control valve
assembly and check.
Check condition of flow control valve
and replace as necessary.
Reset maximum water temperature.
Check inlet filters for any blockages
and clean as necessary.
Refer to important information section.
adjust hot water temperature or wait for
water to reheat if stored system is used.
increase water flow rate through the system.
Check cartridge inlet filters
and clean or replace.
Contact the manufacturer.
Refer to information for system requirements.
increase water pressure through system.
Contact the manufacturer.
Connect the water supplies correctly. Hot on
the left and cold on the right when viewed
from the front. Rework pipework as necessary.
Clean or replace. flush through
pipework before refitting.
General: 01905 823 298
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www.akw-ltd.co.uk