Troubleshooting; Table Of Messages - Komfovent Domekt Series User Manual

4. TROUBLESHOOTING

Device automation continuously monitors the operation of various components and function algorithms. If something
goes wrong, the device informs you with a message and an audible alarm from a control panel (alarm may be disabled).
Messages are divided into critical alarms and notifications. Critical alarms occur when the device cannot continue operation
without intervention of the user or an authorised service representative. Notifications are used to warn the user about
possible faults or small discrepancies but they do not stop the device.
In case of a message, perform the following actions:
• Read the message and note its number displayed on screen (control panel, computer, smartphone).
• Stop the unit. If heating/cooling devices were running at that time, pressing the OFF button will keep the unit running for
a few minutes until heater/cooler temperature is stabilized.
• Once the unit stops, unplug it from the mains.
• Find tips in the "Message Table" by the message number (see Chapter 4.1).
• If possible, eliminate the cause. If a fault cannot be resolved, contact an authorized service representative.
• After troubleshooting, make sure no foreign objects, debris or tools are left inside the unit, and only then close the unit
door.
• Connect the unit to the mains and delete all alarms from the message window.
• If a fault is not resolved, depending on its nature, the device may not start or may start and display an alarm after a while.
• Before performing any work inside the unit, make sure that the device is stopped and unplugged.
• After stopping the unit, wait a few minutes for the fans to stop rotating and the heating devices
to cool down before opening the door.

4.1. Table of messages

Below is a list of messages and recommended actions to resolve faults. These messages are displayed in the C6.1 control
panel, mobile app or a computer. F stands for critical alarms, W – for notifications.
Code Message
F1 Low supply air flow 1. Contaminated air filters.
F2 Low extract air flow 1. Contaminated air filters.
F3 Return water
temperature low
F4 Low supply air
temperature
F5 High supply air
temperature
UAB KOMFOVENT we reserve the right to make changes without prior notice
C6M_GUIDE2-19-04
Possible cause
2. Excessive resistance of ducts.
3. VAV air flow control selected but pressure
sensors are not connected.
4. Supply air fan not working.
2. Excessive resistance of ducts.
3. VAV air flow control selected but pressure
sensors are not connected.
4. Extract air fan not working.
1. No hot water in the water heater system.
2. Circulation pump not working.
3. Water control valve or actuator not
working.
4. Return water temperature sensor is faulty
or installed incorrectly.
1. Integrated heaters not working.
2. Additional heating/cooling devices faulty
or installed incorrectly.
3. Faulty air temperature sensor.
1. Integrated heaters malfunctioning.
2. Additional heating/cooling devices mal-
functioning or installed incorrectly.
3. Faulty air temperature sensor.
User's actions
1. Check air filters and replace, if needed.
2. Check air dampers, air inlet/exhaust openings.
3. If VAV air flow control is required (see Chapter 2.1), install and connect
duct-mounted pressure sensors. If VAV mode not necessary – select
CAV or DCV in the settings.
4. Contact authorised service.
1. Check air filters and replace, if needed.
2. Check air dampers, air inlet/exhaust openings.
3. If VAV air flow control is required (see Chapter 2.1), install and connect
duct-mounted pressure sensors. If VAV mode not necessary – select
CAV or DCV in the settings.
4. Contact authorised service.
1. Check if hot water is in the system.
2. Check if a circulation pump is working.
3. Check if a water control valve is opening.
4. Check whether a return water sensor is installed according to the
directions specified in "Installation Manual". Contact your installer or
authorized service.
1. Contact authorised service.
2. Contact the company that installed or sold additional heating/cooling
equipment.
3. Contact authorised service.
1. Contact authorised service.
2. Contact the company that installed or sold additional heating/cooling
equipment.
3. Contact authorised service.
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