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onga SMH55 - User Manual

onga SMH55
20 pages
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OWNER’S MANUAL
Should you the installer or owner be unfamiliar with the correct
installation or operation of this type of equipment you should contact
the distributor/manufacturer for the correct advice before proceeding
with the installation or operation of this product.
We recommend, for additional protection, the pump
to be supplied from socket outlet protected by
a residual current device – RCD (also known as
an Earth Leakage Circuit Breaker – ELCB) with a
maximum rated residual current of 30mA.
Horizontal Multistage
Centrifugal Pumps
SMH Range
SMH35 SMH45 SMH55 SMH75 SMH90

Table of Contents

Questions and Answers

  • W
    williammedinaAug 8, 2025
    What to do if my onga SMH55 Water Pump operates but delivers no water?
    • J
      Jason BrownAug 8, 2025
      If your Onga Water Pump runs but doesn't deliver water, several issues could be the cause. First, ensure the pump is filled with water. Next, the suction head might be too high, or the foot valve/strainer isn't submerged enough; try lengthening the suction pipe, but no more than 8 meters. Check for air leaks in the suction pipe and joints. Also, the suction pipe/strainer or non-return valves might be clogged with debris, or the pump itself might be clogged. Cleaning these components may resolve the issue.
  • I
    ibauerAug 15, 2025
    Why my onga SMH55 does not operate and the motor does not run?
    • L
      lisadavisAug 15, 2025
      If your Onga Water Pump isn't operating and the motor isn't running, there are a few potential causes. First, verify that there is electricity available to the pump. Next, make sure the pump is plugged in correctly. Finally, check if the circuit breaker has been activated, and if so, reset it.
  • J
    joanne15Aug 23, 2025
    How to troubleshoot reduced performance in Onga Water Pump?
    • J
      Jacob AlexanderAug 23, 2025
      To troubleshoot reduced performance in your Onga Water Pump, consider these potential causes: the suction head might be too high, so reduce it. If the foot valve/strainer is only partially submerged, try lengthening the suction pipe. A worn or damaged pump shaft seal can cause this issue, so replace any defective parts. Debris partially blocking the pump can also reduce performance; remove any debris and flush the pump with clean water. Lastly, check the pressure switch settings and adjust them if they are incorrectly set, or replace faulty parts.
  • N
    Nicholas MccoyAug 31, 2025
    What to do if Onga Water Pump hums and the thermal relays cut in and out?
    • E
      Erin BrooksAug 31, 2025
      If your Onga Water Pump is humming and the thermal relays are cutting in and out, it could be due to a few reasons. The pump might be clogged by debris, in which case you should clean the suction pipe and foot valve/strainer. Flush the pump with water and remove the priming and drain plugs. If it still doesn't start, dismantle and clean it. Alternatively, the capacitor might be defective and need replacement.

Summary

Model Data

Technical Information

Key technical specifications including inlet/outlet, temperature range, IP rating, and electrical supply details.

Application

Installation Guide

Installation Preparation

Inspect for shipping damage, ensure suction piping is clear of air leaks and airlocks.

Pump Protection Measures

Protect pump from environmental factors in a well-ventilated enclosure.

Pipe Installation Best Practices

Support pipes to prevent casing strain, use flexible fittings, and teflon tape for sealing.

Pump Location Recommendations

Position pump close to the water source on a stable, separate footing like concrete.

Electrical Power Connection

Arrange for an electrician to install an outdoor 10A GPO electrical outlet for the pump.

Pump Operation

Start-up and Initial Operation

Ensure the pump is primed correctly before starting and check the motor's clockwise rotation.

Dry Running Protection (D.R.O.P.)

System protects pump parts from overheating when running dry; reset via condenser box switch.

Restoring Pump Operation

Steps to reset D.R.O.P. system: switch off, unplug, remove cause, wait, then switch on.

Service and Maintenance

General Care and Maintenance

Minimal routine attention required; periodically check pressure and power absorption for wear.

Product Warranty Information

International Warranty Coverage

12-month international warranty for parts, excluding travel, removal, and reinstallation costs.

Australian & New Zealand Warranty

Warranty requires adherence to instructions; covers material and workmanship defects.

Warranty Duration and Labour

24-month parts warranty, 12-month authorised labour coverage; infield service fees apply.

Spare Parts Availability

Spare parts are stocked for a reasonable period following the last production run.

Service Request Procedure

Contact numbers, required documentation, and steps for submitting a warranty service claim.

Warranty Limitations & Exclusions

Liability limited to repair/replacement cost; consequential damages are excluded.

Governing Law and Consumer Rights

Warranty grants specific legal rights, subject to Australian/NZ consumer protection legislation.

onga SMH55 Specifications

General IconGeneral
Brandonga
ModelSMH55
CategoryWater Pump
LanguageEnglish

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