EPS 1001905, Руководство по эксплуатации и обслуживанию, Страница: 21 / 28

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Troubleshooting
Problems Signals Possible causes Solutions
PRESFLO® (Vario)
will not turn on
POWER
STATUS
No power Check the electrical connections
The pump will not
start when a tap is
turned on
POWER
STATUS
PRESFLO® model with an inade-
quate start-up pressure (Pm) for
the chosen application
Relocate PRESFLO®to another
position
Install a model with a higher start-up
pressure (Pm)
POWER
STATUS
Faulty electrical connections or
pump out of service
Check the electrical connections and
that the pump is working
POWER
STATUS
PRESFLO® “OUT OF SERVICE” Reset PRESFLO® (See Operation,
point 3).
POWER
STATUS
PRESFLO® in temporary shut
down due to “DRY RUNNING” due
to lack of water
Wait for the automatic restart or
press START to restart manually (See
Operation, point 4a)
Maximum pump pressure is
insuffi cient
Replace the pump with one with
more suitable characteristics
Install a model with a lower start-up
pressure (Pm)
POWER
STATUS
PRESFLO® in temporary shut
down due to “FREQUENT
START-UP”
Wait for the automatic restart or press
START to restart manually (See Oper-
ation, point 4b). Remove any cause
of leakage from system or install an
expansion tank
The pump delivers
no or low pressure
POWER
STATUS
Filters or pipes may be partly
blocked
Check the water pipes
PRESFLO®’s valve will not open
completely
Check that the valve is not blocked
by any foreign objects and clean if
necessary
The pumps stops
and starts repeat-
edly
POWER
STATUS
POWER
STATUS
Leaks within the system (less than
the shut-off fl ow rate Qa)
Check the hydraulic connections and
repair any leaks. If a leak cannot be
repaired, install an expansion tank
The pump will not
stop
POWER
STATUS
The fl ow rate is higher than the
shut-off fl ow rate (Qa)
Make sure that all taps are turned off
and that there are no leaks within
the system
PRESFLO®’s check valve will not
close or is damaged
Check that the valve is not blocked
by any foreign objects and clean if
necessary
Variable Speed Controls
For all Variable Speed confi gurations, see the Steadypres V2.0 control O&M manual for assistance
which illustrates info step by step for Installation, Operation, Maintenance and Trouble Shooting.
Contact EPS for further assistance if you require this detail.
On
Off Flashing
Presfl o Vario