CTC Union EcoPart 425, Installation And Maintenance Manual

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CTC EcoPart i425-i435 Pro
8. Troubleshooting/Appropriate
measures
The heat pump is designed to provide reliable operation and high levels of
comfort, and to have a long service life. Various tips are given below which
may be helpful and guide you in the event of an operational malfunction.
If a fault occurs, you should always contact the installer who installed your
unit. If the installer believes the malfunction is due to a materials or design
fault, then they will contact Enertech AB to check and rectify the issue.
Always enter the product's serial number.
8.1 Air problems
If you hear a rasping sound from the heat pump, check that it is properly
bled. Top up with water where required, so that the correct pressure is
achieved. If this noise recurs, call a technician to check the cause.