14
Possible Cause 5:
SHUTDOWN HIGH AMBIENT message (See Fig.19). The heater is
fitted with intelligence sensors not only monitoring the water
temperature but also the temperature within the electrical enclosure.
To protect the components if the temperature inside the enclosure
reaches 60°C, the controller will shut down and go to STAND BY
mode. This could be due to the product being exposed to direct
sunlight, operating in a very hot environment. As soon as the
temperature drops down the heater will come back on to heating
mode automatically.
Fig. 19
➢
No display
on the heater when it is switched ‘On’
Possible Cause:
Power failure external to the heater
Remedy:
Check any fuses, RCD or other switch components installed in the
supply cable.
NOTE:
The heater PCB control board is fitted with a fuse which should be
inspected.
➢
The flow tube does not feel warm:
Due to the high efficiency of your electric heater no warmth should be detectable from the flow tube
of the heater.
The most likely causes of the flow tube feeling warm are:
Possible Cause 1:
The heater has been positioned in direct sunlight.
Possible Cause 2:
An air pocket is trapped inside the heater particularly if the tank feels
warmer at the highest point of the tank (as air rises).
➢
The water entering the pool does not feel much warmer:
The temperature gain of the water after it has passed through the heater will be directly proportional
to the volume of water being pumped in relationship to the power output of the heater.
For example:
A 6-kW heater, when connected to a 4,000 litre/hour pump will
produce a lift in temperature of approximately 1.2°C (almost
undetectable to the human hand), however, as the water being
heated is re-circulated from a single body of water, the time required
to heat it remains unaffected by the volume of the flow. A popular
misconception is that slowing down the flow rate will speed up the
heating process.