44 MALFUNCTION
LED INDICATION CIRCUIT
BOARD
ERROR CODE
Green
Normal functioning (no error)
Red orange
Problem with the exhaust fan
Red orange orange
Problem with the supply fan
Red orange orange orange
Problem with both fans
Red red orange
"Supply temperature too low" - stop
Red red orange orange
Problem temperature sensor "from home"
Red red orange orange orange
Problem temperature sensor "from the
outside"
Red red orange orange orange orange
Problem temperature sensor "to home"
Red red orange orange orange orange
orange
Problem temperature sensor "to the outside"
Red red red orange orange orange orange
Problem with the I2C connection
Red red red orange orange orange
Problem internal RH sensor
Red red red red orange
Problem constant flow control exhaust
Red red red red orange orange
Problem constant flow control supply
Red red red red orange orange orange
Problem constant flow control general
Red red red red red red orange
Communication error 2-zone control
(not applicable)
Green red
Dirty filter alert
