40 - EN
Malfunction code
GROUND_HEAT_CONNECT ERROR
There is no communication between the ComfoFond-L Q / temperature sensor and the unit.
Question
Answer
Action
5
Is something
wrong with the
cable?
Yes
1. Replace the cable.
2. Follow the procedure for ending the maintenance.
No
1. Get a new option box.
2. Replace the option box.
3. Follow the procedure for ending the maintenance.
Malfunction code
INIT ERROR
The unit has not been commissioned.
Action
1. Commission the unit by running the commission wizard.
(See chapters “Commissioning the unit” and “COMMISSIONING menu”)
2. Reset the errors as instructed in the chapter “How to reset errors”.
3. Follow the procedure for ending the maintenance.
Malfunction code
PREHEAT ERROR.
The pre-heater has a malfunction.
■
When orientation is RIGHT: Preheater is on the left side;
■
When orientation is LEFT: Preheater is on the right side.
Question
Answer
Action
1
Are there also
sensor errors
present?
Yes
Follow the instructions of the SENSOR_ETA ERROR / SENSOR_ODA ERROR / SENSOR EHA ERROR /
SENSOR_SUP ERROR table.
No
1. Inspect the pre-heater as instructed in the chapter “Maintenance of the pre-heater”.
Keep the unit open after finishing all the maintenance.
2. Connect the power to the unit.
Be aware of the danger for electrical shocks and
rotating parts.
3. Reset the errors as instructed in the chapter “How to reset errors”.
4. Go to the next question.
2
Did the error
come back?
Yes
1. Get the pre-heater service set.
2. Replace the pre-heater as instructed in its supplied manual.
3. Connect the power to the unit.
Be aware of the danger for electrical shocks and
rotating parts.
4. Reset the errors as instructed in the chapter “How to reset errors”.
5. Follow the procedure for ending the maintenance.
No
Follow the procedure for ending the maintenance.
Malfunction code
PREHEAT_LOCATION ERROR.
The pre-heater is not in the correct location.
■
When orientation is RIGHT: Preheater is on the left side;
■
When orientation is LEFT: Preheater is on the right side.
Question
Answer
Action
1
Is the orientation
of the unit set
correctly?
8
Yes
1. Change the location of the pre-heater as instructed in the chapter “How to change the location of the
pre-heater”.
2. Reset the errors as instructed in the chapter “How to reset errors”.
3. Go to the next question.
No
1. Set the orientation of the unit correct by running the complete commissioning wizard.
2. Reset the errors as instructed in the chapter “How to reset errors”.
2
Are there also
sensor errors
present?
Yes
Follow the instructions of the SENSOR_ETA ERROR / SENSOR_ODA ERROR / SENSOR EHA ERROR /
SENSOR_SUP ERROR table.
No
1. Remove the pre-heater from the unit.
2. Shake the pre-heater well.
3. Install the pre-heater back into the unit.
4. Reset the errors as instructed in the chapter “How to reset errors”.
5. Go to the next question.
3
Did the error
come back?
Yes
1. Get the pre-heater service set
2. Replace the pre-heater as instructed in its supplied manual.
3. Follow the procedure for ending the maintenance.
4. Reset the errors as instructed in the chapter “How to reset errors”.
No
Follow the procedure for ending the maintenance.
8
You can find the orientation settings in menu > MENU > STATUS > UNIT > HRU TYPE
