aqua HC797 Manuel page 18

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ENGLISH
3.5 Commonly reported problems
THE PUMP DOES NOT FUNCTION AND THE GREEN LED IS NOT LIT.
Solutions
1. Check that the electrical connection is correctly made.
2. Check that the fuse has not blown
3. Replace the electronic circuit with a new one.
THE PUMP FUNCTION CORRECTLY BUT NO LIQUID IS INJECTED IN THE PLANT
Solutions
1. Check the product level in the tank.
2. Check the foot filter which could be closed.
3. Check the injection valve is not closed.
4. Effectuate a maintenance of the suction and delivery valves. Parts showing any chemical attack,
should be replaced, with alternative materials if necessary.
CHEMICAL LEAKS FROM THE DOSING HEAD.
Solutions
1. Check that the hose clamps are correctly fitted and tightened. Caution do not overtighten these
components as they can easily be broken or threads stripped.
2. Check that the head bolts are tight and that the O-ring is in it's correct position. Replace any
damaged or worn parts as necessary.
3. Parts showing any chemical attack, should be replaced, with alternative materials if necessary.
28/05/13 Rev.2.6 18