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2. Technical faults
A technical fault is displayed through a red warning light. The system shuts down and the operating
hours counter (relative hours) stops. Furthermore, the potential-free output as well as the optional
solenoid valve is switched to the free use by the operator.
Malfunctions and other interruptions in operation are detected by the UV sensor and in case of the
intensity falling below 60% they are triggered. If the intensity is reaching 70% again the fault signal
gets inactivated and the system re-starts operation.
Contamination of quartz tube insert
Contamination of UV sensor
Prematurely ageing or malfunction of UV lamp
Accumulation of air in area of UV sensor
Too strong turbidity of water (e.g. by means of
faulty pre-treatment)
Ensure sufficient water quality with high UV
transmission
Additionally, a failure of electrical parts can appear too in the control unit box. Such damages may for
example occur in case of overvoltage.
Malfunction of electronic ballast
Replace electronic ballast
Other damages on electronic parts
Investigation/Replacement by authorised expert
Attention:
Electrical works must only be executed by authorised experts according to VDE
regulations!
For queries regarding operation and handling of UV disinfection system, please contact our
service department:
Hydrotec (UK) Ltd
Hydrotec House
Manor Courtyard, Hughenden Avenue
High Wycombe, Bucks HP13 5RE
Tel: 01494 796 040
Email: services@hydrotec.co.uk
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