18
Fault/Error
Possible Cause
Recommended
Action/Remark
P08
First class anti-freeze
protection.
Error will automatically disappear after
ambient temperatures rises.
P09
Second class anti-freeze
protection.
Error will automatically disappear after
ambient temperatures rises.
P10
Water level sensor failure.
Contact the installer.
P11
Overload protection.
Contact the installer.
P12
Heat pump return water temp.
failure.
In case of any of these failures the
Installer must be contacted to check the
connections and replace sensor if required.
E01
Phase protection sensor failure.
Contact the installer.
E04
Phase rotation detected.
Contact the installer.
E05
HP switch protection.
• Electric element will be activated
automatically.
• Switch off main power supply to the
heat pump, wait 30 seconds and switch
on again.
• Clean inline water strainer.
• Check municipal water supply pressure.
• Contact the installer to open and clean
water circulation pump.
E06
LP switch failure.
Contact the installer.
E07
Too high compressor discharge
temperature.
• Switch off main power supply to the
heat pump, wait 30 seconds and switch
on again.
• Clean strainer and open a hot water tap
to flush/prime the water lines.
• Ensure that the fan is not restricted by
dirt or leafs.
• Check municipal water supply pressure.
• Contact the installer to open and clean
water circulation pump.
E08
Communication failure.
• Reconnect LCD display unit extension
cable.
• Ensure the plugs has a proper connection.
• Contact the installer.
Defrosting sign
indicating
Defrosting mode activated.
Heat pump will continue with normal
operation after defrosting is completed.
NOTE:
If any of the errors above appear frequently, contact your installer.
FOR INFORMATION ONLY
Configuration Management
M-Tech Industrial (Pty) Ltd