Operating instructions

19
Troubleshooting
Diagnostics (cont.)
Fault/
system characteristics
Cause Remedy
The boiler produces wet
steam
The boiler water
alkalinity is too high
Regularly blow down
the boiler and install a
desalination system, if
required; treat water
according to EN12953.
Dewater the
downstream steam line.
The water level is set too
high
Check the boiler and feed
water daily. Check the
electrode length.
Steam knocking inside
the boiler
The feed water does not
enter via the feed water
connector
Connect the feed water
line to the correct
connector
Steam knocking inside
the condensate
container
Check valve in the feed
water line is missing or
faulty
Install or clean the check
valve (observe the flow
direction)
Faulty system
condensate drain
Identify and repair the
faulty drain
U bends buckle Reduce the steam
pressure
The water level in the
boiler is too high
The steam distributor
above the boiler is
insufficiently dewatered
Install a condensate
drain
5692729 GB