Troubleshooting
Problem
Suggestions
Pulsating flow. Pump
cycles ON and OFF.
• Check lines for kinks.
• Plumbing lines or fittings may be too small.
• Clean faucets and filters.
• Check fittings for tightness (prevent air leaks).
No pump discharge
- failure to prime but
motor operates.
• Restricted inlet or discharge line.
• Air leak in inlet line.
• Punctured pump diaphragm.
• Initial current supply (amps) not high enough to start the motor.
• Debris clogging the valves.
• Crack in the pump housing.
Motor does not
switch ON.
• 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-
fication.
- 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.
Pump does not
switch on when all
fixtures are closed.
• Punctured diaphragm.
• Discharge line leak.
• Defective pressure switch.
• Clogged valves in pump head.
- Try pouring water into the inlet to separate (unstick) the valve and the
valve seat
• Insufficient voltage.
Low flow / low
pressure.
• Air leak at pump inlet.
• Accumulated debris inside pump or housing.
• Worn pump bearing (possibly accompanied by loud noise).
• Punctured diaphragm.
• Damaged motor.
Noisy
• Check if the mounting feet are screwed in too tightly.
• If the mounting surface is flexible it may be vibrating.
• Check for loose parts, screws.
• If the pump is plumbed with rigid piping, it may transmit noise.
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, 15 A
Fuse ...................................................... 30 A
Protection class .................................... III
Ingress protection ................................. IPX5
Pressure setting .................................... 2.8 bar
Inlet pressure ........................................ max. 2 bar
Run dry safe ......................................... yes
Duty cycle ............................................. intermittent
Ignition protected .................................. no
Adjustable pressure switch ................... yes
Adjustable bypass ................................ no
Self priming ........................................... yes
Thermal protection ................................ yes
Pump type ............................................ diaphragm
Priming ................................................. 1.8 m suction lift
Fluid medium ........................................ fresh water, salt water
Fluid medium temp. .............................. max. 60 ºC
Discharge head .................................... max. 23 m
Wire lead .............................................. length: 11 cm, ø1.5 mm
2
(16 AWG)
Flow rate ............................................... max. 1020 l/h
Hose connection ................................... ø19 mm (3/4”)
Operating/Storage temp. ...................... 0 to +40 ºC
Dimensions (W x H x D) ....................... 102 x 99 x 255 mm
Weight .................................................. 2180 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.
*2386386_v3_0322_02_dh_m_en
Parts overview
a
b
c
d
A
Pump head assembly
2
Pressure switch diaphragm
B
Valve assembly
3
Pump head
C
Diaphragm assembly
4
Quick attach clip
D
Motor assembly
5
Diaphragm
1
Pressure switch
6
Rubber feet
1a Pressure adjuster
7
Motor
1b Bypass pressure adjuster
1c Inlet port (suction)
1d Outlet port (discharge)
