38 - EN
Malfunction code
CHANGE FILTERS NOW
The internal filters need to be replaced.
Action
Replace the filters right away as instructed in the user manual.
Malfunction code
COMFOCOOL_HEAT ERROR
The ComfoCool Q600 condenser is overheating.
Question
Answer
Action
1
Is the
CONDENSER
TEMP below
58°C?
Yes
1. Reset the errors as instructed in the chapter “How to reset errors”.
2. Check after a few minutes whether the system has reactivated.
No
1. Set the unit to PRESET 3 to speed up the temperature change in the ComfoCool Q600.
2. Set the unit to VENTILATION CONTROL mode CONSTANT FLOW to get a fast increase on the airflow
in the ComfoCool Q600.
3. Wait until the temperature of the ComfCool Q600 condenser has fallen adequately.
4. Reset the errors as instructed in the chapter “How to reset errors”.
5. Check after a few minutes whether the system has reactivated
.
Malfunction code
CONFIGURATION ERROR
The configuration is not up to date.
Action
1. Update the unit software or contact a registered installer to update the unit software.
For more information see chapter “Software update”.
2. Fill in the maintenance log (if present).
Malfunction code
DANGER! OVERHEATING!.
Two or more sensors are detecting an incorrect temperature.
Question
Answer
Action
Was or is the
temperature
< -40ºC or > 70ºC?
Yes
1. Solve the problem for the extreme temperature.
2. Reset the errors as instructed in the chapter “How to reset errors”.
3. Perform all maintenance actions to check if there is permanent damage to the system.
4. Follow the procedure for ending the maintenance.
No
Solve the sensor errors as instructed in their relevant troubleshooting table.
Malfunction code
EXPECT FILTER CHANGE SOON
The internal filters almost need to be replaced.
Action
1. Order new filters.
2. Replace the filters as instructed in the user manual.
Malfunction code
EXT_PRESSURE_EHA ERROR /
EXT_PRESSURE_SUP ERROR.
The system resistance in the extract-exhaust / outdoor-supply airflow is too high.
■
When orientation is RIGHT: pressure sensor EHA is on the left side;
■
When orientation is LEFT: pressure sensor EHA is on the right side.
Question
Answer
Action
1
Is the airflow
blocked?
(Check: filters, fire
valves, inlet/outlet
valves, inlet/outlet
grilles, air ducts,
condensation
in the heat
exchanger)
Yes
1. Solve the blockage.
You can remove condensate from the heat exchanger by ventilating on setting PRESET 3.
2. Follow the procedure for ending the maintenance.
3. Reset the errors as instructed in the chapter “How to reset errors”.
No
1. Access the main board as instructed in the chapter “How to gain access to the main board”.
2. Go to the next question.
2
Are the
connections at
the main board
correct?
4
Yes
1. Check the connector on the sensor side. In chapter “How to gain access to the mid-section sensor”
you can find how to access the connector.
2. Go to the next question.
No
1. Reconnect the sensor connector as described in the technical specification chapter.
2. Follow the procedure for ending the maintenance.
3. Reset the errors as instructed in the chapter “How to reset errors”.
3
Is the connection
at the sensor
correct?
Yes
1. Get the mid-section sensor service set.
2. Replace the sensor as instructed in its supplied manual.
3. Go to the next question.
No
1. Reconnect the sensor connector.
2. Follow the procedure for ending the maintenance.
3. Reset the errors as instructed in the chapter “How to reset errors”.
4
Did the error
come back?
Yes
1. Get the main board service set.
2. Replace the main board as instructed in its supplied manual.
3. Follow the procedure for ending the maintenance.
4
You can find the correct connection in the technical specification chapter.
