Daikin EKSRDS2A Bedienungs- Und Installationsanleitung Seite 25

Problem
Noise in the circula-
tion pump
Circulation pump
does not start
No pressure in the
system
When the system is
drained, no medium
escapes via the
filling and flushing
units
Other malfunctions
Possible reason
System pressure
too low
Incorrect power
supply
Circulation pump
blocked by depos-
its in the bearings
Circulation pump
polluted
Circulation pump
defective
Safety valve de-
fective
Expansion vessel
not tight
Leak in the system
Ball valves and/or
shut-off closed
–
Repair
X X
Increase the system pressure
or check the gas volume in the
expansion vessel
X X
Check fuses; check for loose
cable terminals
X X
Switch to maximum speed of
rotation for a short period of
time
X X
Unblock the rotor, insert a
screwdriver into the groove an
rotate manually
X
Dismount and clean circulation
pump
X
Replace circulation pump
X
Replace safety group assem-
bly
X
Replace expansion vessel
X
Locate the leak and seal it
professionally
X
Set ball valves to 45° position
and open shut-off:
X
Send the product to the manu-
facturer
Troubleshooting
23