LILIE GmbH & Co. KG Heinrich-Hertz Straße-30 D-74354 Besigheim Germany
Tel. +49 (0)7143 9623-0 Fax +49 (0)7143 9623-23 [email protected] www.lilie.com
Seite 4
Stand 16.01.2019 / # E-6103_A-en / 11 / 04.2019
© LILIE GmbH & Co. KG
Subject technical changes
TROUBLESHOOTING
Shocks and vibrations or transportation can loosen the piping system and parts of the pump. Check for loose system components. Various
symptoms can be fixed without difficulties through tightening of small parts. Check the following items along with other details of the
system.
THE PUMP DOESN’T START / TRIGGERS OVERLOAD SWITCH:
•
Check the circuit connections, fuse or overload switch, power switch, and the ground line.
•
Is the motor hot? The thermo-switch might have been triggered. It will reset after cooling.
•
Is there voltage on the switch? Bypass the pressure switch. Does the pump work?
•
Check charging system for correct voltage (+/- 10%) and proper grounding.
•
Check for an open or grounded circuit, motor or wires with incorrect thickness.
•
Check for blocked or stuck diaphragm/component (ice formation?).
THE PUMP DOESN’T SUCK / STUTTERS:
(No drainage/motor runs)
•
Is the screen filter blocked?
•
Is the tank filled with water or are there air bubbles enclosed in the continuous-flow water heater?
•
Does the inlet tube/the piping system suck up air at the pipe connections (vacuum leak)?
•
Is the inlet/outlet pipe constricted significantly or kinked?
•
Correct voltage while the pump is operating (+/- 10%).
•
Check for solids in the inlet/outlet valves or connecting valves.
•
Check the pump housing for cracks or loose screws in the input unit.
PUMP DOESN’T SWITCH OFF / KEEPS RUNNING WITH CLOSED FAUCET:
•
Check the pipes on the output side (pressure) for leaks. Also, check for leaky valves and the toilet.
•
Check if air bubbles are enclosed in the output side (continuous-flow water heater) or in the pump head.
•
Ensure that the voltage (+/-10%) to the pump is correct.
•
Check for loose screws in the drive assembly or pump head.
•
Are the valves or integrated check valves held in place by solids or is the rubber macerated?
•
Confirmation of the pressure switch/wrong setting => refer to the section „Setting the pressure switch“.
•
SOFT
SERIES
®
/ Bypass Pumps: Check bypass / Pressure switch settings.
LOUD OR IRREGULAR OPERATION:
•
Check if the hoses and pipeline have become loose.
•
Is the pump connected to pipes/wires through which noises could be transmitted?
•
Are the noises enhanced by the installation surface (flexible)?
•
Check if the mounting feet are compressed too tightly or have become loose.
•
Check for loose screws at the connection between the pump head and the motor (3 long screws).
•
Does the noise originate from the engine or the pump head? (The engine with pump head taken off).
•
Flow-rate in the system is not 100%? Is the pump stuttering? If necessary, use a pressure equalization tank or a pump of the
SOFT
SERIE
®
or
SMART
SERIE™.
RAPIDLY SWITCHING ON AND OFF
•
Check the settings of the pressure switch.
•
Water filter/water purifier should be connected to separate supply lines.
•
Check for hoses or pipelines with constrictions. Check the flow restrictor in the faucets and in the shower heads.
•
Flow-rate in the system is not 100%? Is the pump stuttering? If necessary, use a pressure equalization tank or a pump of the
SOFT
SERIE
®
or
SMART
SERIE™.
LEAKY SPOTS ON PUMP HEAD OR SWITCH
•
Check for loose screws on the switch and pump head.
•
Switch diaphragm ruptured or pierced?
•
Check for ruptured or punctured diaphragm in case there is water inside the drive assembly.
