VENTILAIRSEC VMI PUREVENT, Installation And Maintenance Manual

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5.5.2 Checks
To ensure the appliance remains effective, it is important to check the following points:
- The condition of the duct system. Clean or change it if necessary.
- The roof outlet or the suction grille must be clear and not obstructed by anything (nest,
leaves, etc.). If it is obstructed, clean it following the safety rules.
- The various air passages (openings, grilles, clearance under doors) must not be obstructed or
reduced in size.
6 OPERATING FAULTS
6.1 Table of main faults
Fault Cause Remedy
Indicators flashing
The VMI® unit requires an
intervention See the table of colour indications.
Error code on
control unit Product fault See error code table.
Blown air is too cold Set temperature is too low Increase the preheat temperature.
Water sound
Siphon deprimed
Drainage clogged
Battery poorly vented (internal
noise) Check that the siphon contains water.
Unblock the duct.
Clear the way again.
Flow rates at
openings are too
low
Incorrect product configuration
Unbalanced system
Leak in the system Review installation settings.
Check the system's line lengths.
Seal the system better.
Noisy product
Air flow network crushed or
excessive load loss
Incorrect product configuration
Filter clogged Check system.
Review installation settings.
Replace the filter.
6.1.1 Error codes shown on the control unit
Error codes Faults
E1 Faulty heaters
E2 Faulty motor
E3 Fault with one or more air quality sensors
E4 Faulty control unit sensor
E5 Faulty probe
E6 Loss of communication with VMI®
E9 Multiple faults detected