ProMinent
®
Page 36
Maintenance / Troubleshooting
7.5 Replacing the Fan Filter Mats and Air Exit Filter
DANGER
• If the filter mats in the fan or the air exit filter become clogged, the control cabinet may
overheat and be destroyed.
• The fan filter mats and air exit filter should be replaced at least once a year. They must
be replaced more frequently under unfavourable environmental conditions.
Press the START/STOP key to switch off the system.
Switch off at the mains.
Remove the fan cover. Take hold of the recessed grips at the bottom of the cover and
remove it.
Remove the clogged filter mats and insert new ones with the white side facing inwards
(control cabinet side).
Replace the air exit filter mat as described above.
Switch on at the mains.
8Troubleshooting
IMPORTANT
•Troubleshooting with the control cabinet open and replacement of components may
only be carried out by an authorized skilled electrician.
Value fallen below warning threshold
Message: flashing arrow pointing downwards
Value fallen below safety threshold
Message: flashing double arrow pointing downwards The amount of free flushing
time that remains is displayed
(Instead of the seconds, two squares flash)
Value fallen below safety threshold
Message: UV sensor (when the maximum free flushing period has elapsed)
Press the ENTER key to acknowledge the fault message
Possible cause Insufficient lamp output.
Remedy
Increase lamp output
Possible cause A coating has formed on the protective tube and/or UVC sensor.
Remedy Clean the protective tube and UVC sensor
Possible cause The UV transmission of the water to be disinfected has deteriorated.
Remedy Improve the water quality
Possible cause The UV lamp is at the end of its useful life.
Remedy
Insert a new UV lamp
Possible cause Sensor not calibrated.
Remedy Calibrate the sensor
↓↓
↓↓
↓ 55 %
10 h Operation
20 On/Off
↓↓↓↓
↓↓↓↓
↓↓ 40 %
Free flushing period
Time 00:11
Fault
UV Sensor
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