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Subject to technical modifications of Optima 100
6. Troubleshooting
6.1 System does not operate
System stopped:
No light in the display panel even when the button is
pushed.
Fault:
• The fuse in the panel has blown – no power to unit.
• One of the fuses on the circuit board has blown.
• Loose cable, no power to the unit.
• Loose cable between the unit and the operating
panel.
• “Filter fault” on the unit.
Condensate runs out of the unit:
Fault:
• Condensation outlet blocked with dirt and
contaminants.
• No water in water trap.
• No condensation on the ground due to frost.
• The outlet is not sufficiently protected against frost.
6.2 Fault on the air side
No inlet air to residence’s rooms.
Fault:
• Defective ventilator.
• Blocked filter.
• Dirt and leaves in the fresh air vent in Autumn or
snow and ice in Winter.
• Control circuit fuse has blown.
No outlet air from wet rooms.
Fault:
• Defective ventilator.
• Blocked filter.
• Exhaust vent / roof cap is blocked with ice and snow
in the Winter.
Cold inlet air:
Fault:
• The counter flow heat exchanger is blocked with dirt
or ice.
• The extract air ventilator is defective.
• The exhaust air filter is blocked.
If the fault is not stated above, please contact the person
who installed the system or the GENVEX customer
centre.
