Remco 55AQUAJET-AES - User Manual

Questions and Answers

K
Kathleen TuckerAug 12, 2025
Why does my Remco Water Pump keep running when water is not in demand?
- J
  joann93Aug 12, 2025
  If your Remco Water Pump continues to run even when water is not being used, several factors could be the cause. First, check if the diverter valve is in 'fill' mode and close it. Also, ensure that your water tank is adequately filled. Inspect all hose connections for tightness and check for any damage to the hose itself. Furthermore, examine the inlet side of the pump for air leaks, checking the tightness of hose connections and inspecting the inlet hose, filter, and valves for damage; then, purge any air. If these steps don't resolve the issue, it could be due to a malfunctioning speed controller or low voltage to the pump, which may require contacting the factory or changing the battery/power supply and checking the wire gauge.
A
arianacurryAug 16, 2025
How to troubleshoot low flow/pressure in my Remco 55AQUAJET-AES?
- R
  Raymond DavisAug 16, 2025
  If you're experiencing low flow or pressure with your Remco Water Pump, start by checking for leaks on the inlet side of the pump, ensuring all hose connections are tight and inspecting the hose for damage. Next, purge any air that may be trapped in the pump. Also, verify that the pump is receiving adequate voltage by changing the battery or power supply and checking the wire gauge. Additionally, flush the pump to clear any debris from under the valves by turning on all hot and cold faucets fully for a few minutes. If the issue persists, the motor may be malfunctioning, and the pump may need to be replaced.
E
esheltonAug 20, 2025
What to do if Remco 55AQUAJET-AES rapidly cycles on/off without water demand?
- B
  bondrobertAug 20, 2025
  If your Remco Water Pump is rapidly cycling on and off even when there's no water demand, there are a few potential reasons. First, check for any leaks on the outlet side of the pump by ensuring hose connections are tight and inspecting the hose for damage. Another possible cause is a fill valve bypassing to the tank, which would require replacing the fill valve. Lastly, debris under the valves can also cause this issue; try flushing the pump by turning on all hot and cold faucets all the way for a few minutes to clear any obstructions.
K
Kevin KelleyAug 25, 2025
How to fix a Remco Water Pump that does not prime?
- J
  Jason VillanuevaAug 25, 2025
  If your Remco Water Pump isn't priming, first ensure that the water tank is full. Next, check for any leaks on the inlet side of the pump by inspecting the tightness of hose connections at the pump, filter, and tank, and also check the valves at the inlet side. Debris under the valves can also prevent priming, so flush the pump by turning on all hot and cold faucets fully for a few minutes. Also, check that the inlet or outlet plumbing isn't restricted and that water can flow freely from the tank at a minimum of 2 GPM. For a perforated diaphragm, contact the factory at 1-800-228-2481.
H
Heather MarshallAug 27, 2025
Why is my Remco 55AQUAJET-AES Water Pump so noisy?
- J
  John SheltonAug 27, 2025
  If your Remco Water Pump is excessively noisy, several factors could be contributing. If the pump is directly connected to rigid tubing, install a pulsation dampener (P/N 25-174 for elbow fittings or P/N 25-175 for straight fittings). Check the plumbing for any restrictions that may be causing cavitation, ensuring water flows freely from the tank at a minimum of 2 GPM. Also, make sure the pump head and mounting are securely tightened. If the mounting is too rigid, use flexible tubing and ensure the dampening rubber feet are installed. If none of these steps reduce the noise, the motor or drive may be defective, requiring pump replacement.
R
rogersericAug 30, 2025
What causes a Remco 55AQUAJET-AES Water Pump to rapidly cycle on/off with water demand?
- S
  steven58Aug 30, 2025
  If your Remco Water Pump is rapidly cycling on and off when water is being used, it could be due to hydraulic pulsations. To resolve this, install a pulsation dampener (P/N 25-174 for elbow fittings or P/N 25-175 for straight fittings). Another potential cause is a restriction on the outlet side of the pump, leading to excessive back pressure. Check the inline filter, if one is installed.
G
gbenderSep 4, 2025
What to do if my Remco Water Pump leaks?
- Q
  qnolanSep 4, 2025
  If your Remco Water Pump is leaking, it could be due to a perforated diaphragm, in which case you should contact the factory at 1-800-228-2481. Alternatively, the inlet/outlet fittings might be leaking, requiring you to replace the O-rings and/or the fittings themselves.
B
Bernard TownsendSep 7, 2025
How to prevent electromagnetic interference from Remco 55AQUAJET-AES Water Pump?
- S
  Sarah FernandezSep 7, 2025
  If you are experiencing electromagnetic interference with your Remco Water Pump, such as noise in your stereo system or TV picture distortion when the pump is running, or if the operation of your heating/cooling system changes, install an EMI filter in line with the pump (p/n 21-256).

Summary

Installation Guide

Basic Tools

Essential tools required for performing the pump installation.

Electrical Supplies

List of electrical components that may be necessary for a successful installation.

Planning the Installation

Steps to plan the pump installation, considering RV specifics and wiring.

Installation Procedure

Step-by-step guide detailing the process of installing the Aquajet pump.

Troubleshooting Guide

Pump Operational Issues

Diagnosing and resolving problems like pump not running, cycling, or not priming.

Pump Performance Issues

Addressing leaks, low flow/pressure, or excessive noise from the pump.

Electromagnetic Interference

Solutions for noise affecting electronic devices during pump operation.

The Aquajet Series Pumps are designed for use in RV water systems, offering a robust and efficient solution for water delivery. These pumps are engineered to be compatible with virtually any existing RV setup, provided they are installed correctly. For those who prefer professional installation, Remco offers support to locate authorized service centers.

Function Description

The Aquajet Series pumps are high-performance water pumps for recreational vehicles. They are designed to deliver water under pressure, ensuring a consistent flow for various RV needs, such as sinks, showers, and toilets. The pumps feature a pressure-sensing demand switch that automatically controls the maximum operating pressure, ensuring efficient and controlled water delivery. This switch is factory-set and should not be adjusted without consulting the factory. The 5-chamber design of these pumps provides more power compared to many existing RV water pumps, which necessitates careful attention to electrical sizing during installation.

Usage Features

The Aquajet pumps are designed for ease of use and integration into RV water systems. They operate on 12VDC power and come in different models with varying flow rates (3.4 GPM or 5.0 GPM). Some models include an integral fuse for added protection.

Electrical Compatibility: Due to their powerful nature, it is crucial to ensure that the RV's power supply, fuses/circuit breakers, wiring, switches, and connectors are adequately sized to handle the pump's current draw. Inadequately sized components can overheat and pose a fire risk.
Polarity: Correct electrical polarity is vital. The positive voltage (+12VDC) must be connected to the Aquajet's red fused leadwire. Reversing polarity will instantly blow the fuse and can permanently damage the controller. If there is any uncertainty regarding wiring polarity, professional assistance is strongly recommended.
Controller Compatibility: For RVs using Intellitec pump controllers, specific models are required. Only 10 or 15 Amp rated Intellitec controllers can directly control the Aquajet RV Series. Lower-rated controllers (7 Amp, 3 Amp, or non-rated) should not be used directly and may require a 40 Amp rated relay to augment the existing controller. The Aquajet ES Series is compatible with most common rated Intellitec controllers (7 Amp, 10 Amp, 15 Amp), but 3 Amp or non-rated controllers will still require a 40 Amp rated relay.
Wiring Adequacy: Before installation, it's important to assess if the existing wiring can supply the necessary amperage without excessive voltage drop. A voltmeter can be used to measure voltage drop. If the voltage drop is too high, a new heavier gauge 'hot' wire and a 30 amp relay may be required.
Mounting: The pump should ideally be positioned horizontally with its rubber feet resting on a "floor-like" surface to minimize noise and vibration. It should not be mounted on a wall if possible. It is important to keep the pump at least one inch away from any wall surface to allow for proper air circulation and heat dissipation. The pump should never be mounted in areas where gasoline vapors are present, as the motor and heatsink can reach high temperatures.
Plumbing: For the quietest operation, it is recommended to mechanically isolate the pump from the RV's rigid Polybutylene or PEX tubing. Using soft-walled, reinforced hose, such as IAPMO approved cold water hose, between the pump outlet port and the RV's hard plumbing can significantly reduce noise. A screen filter must always be used between the water holding tank and the pump to prevent debris from entering and damaging the pump's valves.
Thermal Protection: 55Aquajet ORV, OES, ARV, and AES Series pumps are equipped with an automatically resetting thermal protector. If the pump stops running, it may restart at any time once it cools down.
Fuses: For models with fuse-holders, it is critical to use the correct automotive type fuse: a 15 amp AGC fuse for Aquajet RV Series and a 10 amp AGC fuse for Aquajet ES Series.

Maintenance Features

Proper maintenance is essential to ensure the longevity and optimal performance of the Aquajet Series pumps.

Environmental Considerations: The pump should never be operated in atmospheres where flammable gases are present due to the risk of explosion from arcing at motor brushes or switch contacts. It should be mounted in a dry location, away from heat and water sources. Avoid wrapping the pump with insulating material or enclosing it too tightly, as this can prevent proper air circulation and lead to overheating.
Temperature Management: After extended operation or if malfunctioning, metal surfaces of the pump may become hot. Disconnect electrical power and allow 30 minutes for cooling before touching the pump to prevent burns. The pump should not be mounted where its surface temperature (up to 200° F maximum) could ignite surrounding materials.
Water Compatibility: The pumphead materials are designed for use with water only. Petroleum products should never be used with the pump. Chlorine can deteriorate pump parts, so after sanitizing the system, it should always be rinsed thoroughly with fresh water to prolong the life of the components.
Pressure Management: The pump should never be subjected to pressures above 90 PSI maximum. The demand switch is factory-set and should not be adjusted without consulting the factory.
Filter Cleaning: The screen filter, located between the water holding tank and the pump, must be cleaned regularly. A clogged filter will restrict water flow to the pump and can cause particulate matter to stick open the pump's valves.
Winterization: To prevent damage from freezing temperatures, the system must be properly winterized. This involves draining the water holding tank, opening all faucets to expel water, disconnecting inlet and outlet fittings, and running the pump briefly to remove any residual water. Fittings should be left disconnected.
Troubleshooting: A comprehensive troubleshooting guide is provided to address common issues such as the pump not running, rapid cycling, leaks, low flow/pressure, and excessive noise. Solutions range from checking fuses, wiring, and battery supply to installing pulsation dampeners, checking hose connections, and flushing the pump.
Electromagnetic Interference (EMI): If noise is heard in the stereo system or TV picture is affected when the pump is running, installing an EMI filter in line with the pump (p/n 21-256) can resolve the issue.

The Aquajet Series pumps are designed for "handyman" competent individuals to install, requiring basic electrical wiring skills, understanding of polarity, and familiarity with water system plumbing. This includes crimping connectors, taking voltage measurements, using Teflon tape, and handling hose clamps and compression fittings.

Remco 55AQUAJET-AES Specifications

General

Model	55AQUAJET-AES
Category	Water Pump
Voltage	115V
Flow Rate	55 L/min
Power	0.75 kW
Max Flow Rate	55 L/min
Max Head	45 m
Inlet Size	1" NPT
Outlet Size	1" NPT
Weight	12 kg