DeDietrich Alezio V220 Evolution User Manual page 26

8 Troubleshooting
Problems Probable causes
The water pressure is Not enough water in the
too low (< 1 bar). installation.
Water leak.
Clicking in the central The central heating pipe
heating pipes clamps are too tight.
.
There is air in the heating
pipes.
The water is circulating too
quickly in the central
heating system.
Significant water leak The pipes on the heat
underneath or in the pump or the central
vicinity of the heat heating are damaged.
pump.
26 AWHP-2 MIV-3 V220
Corrections
Top up the installation with water.
See
Top up the installation with water, page 22.
Contact the installer.
Contact the installer.
It is essential that you vent any air in the domestic hot water tank, the
pipes and the taps to prevent the annoying noises likely to be produced
during heating or when drawing off water.
See
Venting the heating system, page 23.
Contact the installer.
Contact the installer.
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