Parts overview
a
A
Pressure switch
B
Motor assembly
1
Pressure switch diaphragm
1a
Pressure adjuster
1b
Inlet port (suction)
1c
Outlet port (discharge)
Troubleshooting
Problem
Suggestions
•
Check lines for kinks.
•
Plumbing lines or fittings may be too small.
Pulsating flow. Pump
cycles ON and OFF.
•
Clean faucets and filters.
•
Check fittings for tightness (prevent air leaks).
•
Restricted inlet or discharge line.
•
Air leak in inlet line.
No pump discharge
•
Punctured pump diaphragm.
- failure to prime but
•
Initial current supply (amps) not high enough to start the motor.
motor operates.
•
Debris clogging the valves.
•
Crack in the pump housing.
•
Loose or incorrect wiring.
•
No power supplied to the pump circuit.
•
Blown fuse or thermal protection triggered.
- Blown fuse: replace the fuse with one that is of the same type and speci-
Motor does not
fication.
switch ON.
- Thermal protection triggered: switch power off, allow pump to cool down,
remove the conditions triggering therrmal protection, then switch pump
back on.
•
Failed pressure switch.
•
Damaged motor.
•
Punctured diaphragm.
•
Discharge line leak.
•
Defective pressure switch.
Pump does not
switch on when all
•
Clogged valves in pump head.
fixtures are closed.
- Try pouring water into the inlet to separate (unstick) the valve and the
valve seat
•
Insufficient voltage.
•
Air leak at pump inlet.
•
Accumulated debris inside pump or housing.
Low flow / low
•
Worn pump bearing (possibly accompanied by loud noise).
pressure.
•
Punctured diaphragm.
•
Damaged motor.
•
Check if the mounting feet are screwed in too tightly.
•
If the mounting surface is flexible it may be vibrating.
Noisy
•
Check for loose parts, screws.
•
If the pump is plumbed with rigid piping, it may transmit noise.
b
c
2
Pump head assembly
3
Motor
4
Rubber feet
Disposal
Electronic devices are recyclable waste and must not be disposed of in the household waste.
At the end of its service life, dispose of the product in accordance with applicable regulatory
guidelines. You thus fulfill your statutory obligations and contribute to the protection of the envi-
ronment.
Technical data
Input voltage / current ........................... 12 V/DC, 4 A
Fuse ...................................................... 8 A
Protection class .................................... III
Ingress protection ................................. IPX5
Pressure setting .................................... 2.4 bar
Inlet pressure ........................................ max. 2 bar
Run dry safe ......................................... yes
Duty cycle ............................................. intermittent
Adjustable pressure switch ................... yes
Adjustable bypass ................................ no
Self priming ........................................... yes
Thermal protection ................................ yes
Ignition protected .................................. no
Pump type ............................................ diaphragm
Priming ................................................. 1.8 m suction lift
Fluid medium ........................................ fresh water, salt water
Fluid medium temp. .............................. max. 60 ºC
Discharge head .................................... max. 20 m
Wire lead .............................................. length: 33 cm, ø1 mm² (18 AWG)
Flow rate ............................................... max. 258 l/h
Hose connection ................................... ø10 mm (3/8")
Operating/Storage temp. ...................... 0 to +40 ºC
Dimensions (W x H x D) ....................... 98 x 62 x 169 mm
Weight .................................................. 600 g
This is a publication by Conrad Electronic SE, Klaus-Conrad-Str. 1, D-92240 Hirschau (www.conrad.com). All rights in-
cluding translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in electronic data
processing systems require the prior written approval by the editor. Reprinting, also in part, is prohibited. This publication
represent the technical status at the time of printing.
Copyright 2022 by Conrad Electronic SE.
*2386385_v4_0922_02_dh_m_en