4) Error air side
No air supply the rooms:
Error:
• Defective fan.11Subject Technical Modifications Energy and 3/GES Energy 1
Fault finding
1) The display shows Optima 250 DESIGN:
Data error:
- No communication between the display and controller.
• Fresh air grill blocked with dirt and leaves the
autumn snow and ice the winter.
• The fuse the control system circuit board has
blown.
.
• The extraction fan defective.
Version error:
- If the program the display section does not suit the
controller.
If the error not one those listed above, please
contact your installer the GENVEX customer centre. (Only devices with water after-heat fitted).
Change filter:
- The filters must changed. The heat coil disconnects the
configured value (90°C) exceeded.
3) The device not running
The device stops:
No light the control panel, even when you press on
the button.
Hold ON-OFF:
- The filters have not been changed within the last days.
• The condensation outlet blocked ice.
• Blocked filter.
Error:
• The fuse the terminal board has blown and there
is power the device.
• There wire loose between the device and the
control panel.
• Blocked filter.
Stopped circulation pump, air heating pipe,
defective thermostat/motor-operated valve, incorrect
configuration control panel.
• There loose wire and power the device.
• The fuse the control system circuit board has
blown.
• Discharge grill/roof cover blocked snow and ice
in winter.
- Cable between display and circuit board long.
• water the water trap.
The safety thermostat fitted the electric heatsurface’s
terminal box.
• The extraction filter blocked.
Cold air supply:
Error:
• Counter current heat exchanger blocked snow
and ice.
• Electric after-heat surface disconnected from safety
thermostat (only device with electric heat-surface
fitted)
• circulation hot water the water after-heat
surface.
No air extraction from wet rooms:
Error:
• Defective fan. The heating coil
can only reactivated with the reset button located on
the terminal box when the temperature below 90°C.
• The outlet not adequately protected against ice.
Condensation water leaking from the device:
Error:
• Condensation outlet blocked dirt.
- The unit has stoppedthermostat/motor valve, incorrect
setting control panel.
• One the fuses the circuit board has blown.
2) Safety thermostat electric heatsurface
(auxiliary equipment):
The safety thermostat protects the electric heat-surface
against high temperatures during heat production
