Troublesshooting - HST 25/4 Installationsanleitung

Most problem with the device
Problem
The pump can not
start.
Noise in the system
Noise at the pump
CIRCULATING PUMP

TROUBLESSHOOTING

Causes
No power supply
Capacitor is damaged.
Bering blocks the op-
eration of the pump
There are impurities in
the pump
Flow rate is too high
Air in the system
Air in the pump
System pressure is
too low
11
Troubleshooting
Check whether the fuse
is probably loose.
Change the capacitor
Turn on the high speed
of the pump for a short
time and loosen with a
screwdriver at the end
of the rotor axis.
Switch off the pump
and clean
Reduce the rate of flow
Vent the air from the
system
Vent the air from the
pump
Increase system pres-
sure and venting the
Line.