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Understanding Water Flow Problems
A water flow warning will display if the water
flow does not begin or if it fails for any reason.
Running the iCool with no water flow can cause
serious damage because the heat exchanger
tanks will quickly freeze. Frozen water expands
considerably and this can cause damage to the
tanks. Lack of water flow can seriously damage
the pump as there would be no lubrication or
cooling from the water.
Water Flow Can Also Stop If The Heat
Exchanger Tanks are Frozen Solid
If you set the temperature below about 7ºC
or 45ºF it is occasionally possible in certain
climatic conditions for the heat exchange tanks
to freeze solid. This will block most or all of the
flow of water. It should be understood that in
order to cool the pool water to these extremely
low temperatures the system must cool to at
least 5ºC below the set temperature to allow
for losses and this takes it very close to the
temperature that water freezes solid. There
is an anti freeze safety circuit in your iCool to
prevent this in most cases.
If the tanks freeze up, the system will stop to
protect the tanks and the screen will sound an
alarm and give advice.
Allow 30 minutes for the ice to melt and then
set the temperature a little higher and restart.
Normally settings above 8ºC or 45ºF will not
freeze the tanks in any conditions.
iCool Compact Series | Owners Manual
Troubleshooting
The tanks can only freeze if your setting is below
7 to 8ºC and this can only happen in certain
conditions. If your set temperature is above this
then it is much more likely that the system has
stopped because of a lack of water flow caused
by either a pipe or filter obstruction, or an air
leak in the hoses or pipes from the spa pool, or
trapped air in the system.
After thawing, set a new temperature no lower
than 8 or 9ºC before restarting to prevent the
tanks freezing again.
If this becomes a problem then adding a little
salt to the water will lower the temperature at
which the water freezes.
International Multi-Voltage Pump
Your iCool machine will either come with a 220
volt Davey Pump or an International Multi-
voltage Pump (Marlin). The latter is supplied for
countries with 110 volt power however it can
also be used with 220v power. It has a range of
power settings to suit different pool sizes and
hose lengths.
If you were provided with this pump, please
follow instructions below on how to operate the
pump and solve water flow problems:
When setting up your iCool, connect the pump
and the Pump Controller as per the image on
the right.
When your iCool starts up, it will automatically
power this pump on its lowest power setting.
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