onga JMM100 - User Manual

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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 for the correct advice before proceeding with the

installation or operation of this product.

Jet Assisted Pumps

1000 Series

JMM100 JS100 JSM100 JSK110

JS110 JSP110 JSK120

JS120 JSP120

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.

Table of Contents

Questions and Answers

S
Susan SwansonAug 1, 2025
What to do if my onga JMM100 Water Pump does not start?
- L
  Lance LiAug 1, 2025
  If your Onga Water Pump isn't starting, ensure it's connected to a live outlet. Also, check the circuit breakers and fuses. If the pressure controller detects no water in the tank, make sure there's enough water and press the reset or start button. A blocked pump can also be the cause; disconnect it from the power and inspect the housing and discharge for any obstructions. If none of these steps work, the capacitor may be defective, and you should call a qualified service technician.
D
Danielle PaulAug 6, 2025
Why does my Onga Water Pump have poor performance with low pressure?
- C
  codyjacobsAug 6, 2025
  To troubleshoot low pressure or flow in your Onga Water Pump, first, check the suction line for leaks, especially at the joints. If the tank water level is too far below the pump, consider discussing a better pump option with your Onga dealer or moving the pump closer to the tank. Also, a worn or damaged pump can cause poor performance, so ask your Onga dealer to investigate worn parts.
C
Caitlin HallAug 12, 2025
What to do if there is no water from onga JMM100 Water Pump?
- J
  Joseph JonesAug 12, 2025
  If your Onga Water Pump isn't providing water, first ensure the pump body and suction line are filled with water before starting. Check the suction line for leaks, particularly at the joints. Blockages in the pump or discharge can also prevent water flow, so disconnect the pump from power and inspect for foreign matter. Make sure all valves on the tank, pump, and outlets are open. If the tank doesn't have enough water, wait until it refills and then press the reset or start button on the pressure controller. Also, check and clean the pump if it's not producing enough pressure, and inspect/clean any in-line or tap filters that may be blocked. Finally, check system pressure and adjust the pressure switch accordingly.
C
changdonaldAug 18, 2025
Why does my onga JMM100 Water Pump run intermittently?
- P
  pittmanannaAug 18, 2025
  If your Onga Water Pump runs intermittently, start by checking for small leaks in your household plumbing and fix them. Ensure that the water temperature remains within the specified limits. Verify that the voltage is within the allowable limits as stated in the specifications, and correct if necessary. Also, make sure there's adequate ventilation for the motor cooling fan.
A
Amy JacksonAug 25, 2025
What to do if Onga Water Pump will not stop?
- W
  William MillerAug 26, 2025
  If your Onga Water Pump won't stop, even with no taps open, debris might be caught in the pressure controller; take it to your Onga dealer for service. Also, check for leaks in the household plumbing and fix them.

Summary

Model Data

Application

Installation

Preparation for Installation

Steps for inspecting the pump and ensuring proper setup before installation begins.

Pump Protection

Guidelines for safeguarding the pump from environmental factors and maintaining warranty.

Pipe Installation

Instructions for connecting pipes to the pump, emphasizing support and thread care.

Locating the Pump

Advice on selecting an optimal position for the pump relative to the water source.

Power Source

Requirements for connecting the pump to a suitable and safe electrical supply.

Suction

Critical information regarding the suction pipe setup for optimal pump performance and longevity.

Discharge

Considerations for discharge pipework affecting pump pressure and flow rate.

Pump Priming

Procedures for filling the pump and suction line with water before operation.

Electrical Installation

Operation

Start-up; Operation

Procedures for initial startup and basic operation of the pump.

Pressure Switch

Information on the pressure switch, its settings, and adjustments for domestic use.

Aqua Packs

Details on the operation and installation of Aqua Packs as pump accessories.

Aqua Pack Tank Recharge Procedure

Steps for maintaining and recharging the air pressure in Aqua Pack tanks.

Service and Maintenance

Troubleshooting

Pentair Water Product Warranty

onga JMM100 Specifications

General

Model	JMM100
Category	Water Pump
Voltage	220-240V
Frequency	50Hz
Inlet/Outlet Size	1 inch
Power	0.75 kW

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