Elecro VULCAN Manual De Instalación Y Funcionamiento página 12

Trouble Shooting – Analogue
HEATER WILL NOT SWITCH FROM STANDBY (AMBER LIGHT ) TO ON
(RED LIGHT)
In most cases this will be the result of one of the following points not
being met.
Possible cause 1: The set point temperature has been achieved.
To confi rm 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 high limiting thermostat has tripped.
Remedy: Remove button cover and press red button to re-set (see fi g 8)
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 fl ow
tube of the heater.
Fig 8.
Possible cause 3: Insuffi cient fl ow.
If using a cartridge fi lter: Confi rm this by running the system with the
cartridge removed from your pump & fi lter unit, this will supply the heater
with the maximum fl ow rate your unit is capable of. If the heater then
switches 'On' (ie: red light 'On') a blocked cartridge can be confi rmed to be
the cause. The cartridge should be cleaned or replaced.
If using a sand fi lter: Check the pressure indicator on your sand fi lter and
back wash if necessary.
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