Elecro Engineering Cygnet Aquatic Heater 1-kW, Installation & Operating Manual

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Note that your heater is also rated in kW hours. The pond pump and heater
will need to be running continuously during the test (ie: with the heater
red light ’On’) To avoid inaccurate results when performing this test, it is
important to refrain from using other high current consuming appliances
in the property (such as tumble dryer, showers, cookers etc).
A large aquatic pump of 1 horsepower will draw less than 1-kW in a one
hour period. The conclusion of the test should prove that for example
a 3-kW heater and a ½ horsepower pump will draw between 3.3-kW ~
3.5-kW in one hour. It is impossible for an electric heater to waste energy,
if it is drawing power then that power will be turned into heat that will be
transferred to the water.
Trouble Shooting
HEATER WILL NOT SWITCH ‘ON’
In most cases this will be the result of one of the following points not
being met.
Possible cause 1: The required temperature has been achieved.
To confirm: increase the set point value by turning the temperature set
point dial to a value greater than the current water temperature.
Possible cause 2:
The ‘Thermal safety cut-out’ has tripped.
Remedy: Remove button cover and press red button to re-set (see fig 4)
If a positive click is felt, the cause of the tripping must be investigated and
could be caused by a debris build-up or air pocket trapped inside the flow
tube of the heater.
Fig 4.