Oertzen E 334 User Manual

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To be read before start-up!

Operation Manual

E 334

von Oertzen GmbH • Ferdinand-Harten-Str. 10 • 22949 Ammersbek • Tel. +49 40 604110 • Fax +49 40 6041149

www.oertzen-gmbh.de • info@oertzen-gmbh.de

6/05

Table of Contents

Questions and Answers:

C
Carmen RobinsonAug 1, 2025
What to do if my Oertzen E 334 Pressure Washer electric motor does not start?
- K
  Kelly BrownAug 2, 2025
  If the electric motor of your Oertzen pressure washer doesn't start, there are several possible causes. First, ensure the motor protection switch is pushed. Next, verify the machine is properly connected to a power source and the main switch is on. Check the fuse and replace it if it's burnt; if it burns again, contact a qualified service. Also, make sure the phase is mounted as per the electric wiring diagram. If you have an SCS system, ensure a sufficient water supply. If the motor protection switch is defective, contact qualified service.
S
Steven PierceAug 7, 2025
Why does my Oertzen E 334 electric motor suddenly stop and the motor protection switch trips?
- S
  Sandra SchmittAug 8, 2025
  If the electric motor of your Oertzen pressure washer suddenly stops and the motor protection switch trips, it could be due to several reasons. Check for poor water supply and eliminate the cause, then restart the machine using the ON/OFF switch. A burnt fuse or missing phase can also cause this; replace the fuse, but if it burns again or the motor is noisy, contact qualified service. Ensure the power supply voltage is correct. If the motor protection switch is defective, contact qualified service. Lastly, a high operating pressure might be the issue; clean or replace the nozzle.
J
Jessica SmithAug 13, 2025
What to do if the operating pressure is not achieved or varies in my Oertzen E 334 Pressure Washer?
- J
  Jared Jones MDAug 13, 2025
  If the operating pressure of your Oertzen pressure washer is not achieved or varies, consider these potential causes: There may be air in the unit; bleed the unit by opening the pressure regulating handle and pistol until continuous pressure is reached. The nozzle could be worn, so replace it. Ensure the correct nozzle is installed. The nozzle may be partly clogged; remove, clean, and reinstall it. Check if the water filter is dirty and clean it. If the unloader valve is leaking, contact qualified service. A suction side leak can also cause this; tighten the hose clamps on the suction hose. Finally, suction valves might be sticking or dirty; remove, clean, and reinstall them.
D
David FigueroaAug 20, 2025
Why is my Oertzen E 334 Pressure Washer electric motor noisy upon start-up?
- G
  George LongAug 20, 2025
  If your Oertzen pressure washer's electric motor is noisy upon start-up, it could be due to a burnt fuse or missing phase; replace the fuse, and if it burns again, contact qualified service. Another possibility is a fault in the electrical network; check the phases in the electric plug.

Oertzen E 334 Specifications

General

Brand	Oertzen
Model	E 334
Category	Pressure Washer
Language	English

Summary

Introduction

Safety Instructions

General Safety Guidelines

Essential safety instructions for operating the machine.

Electrical Safety Precautions

Warnings and instructions for safe electrical operation.

Equipment and Hose Safety

Guidelines for using approved equipment and hoses.

Configuration, Operation, Illustration

Machine System Overview

Description of the cold water system, pump, and valves.

Machine Component Illustrations

Visual guide to machine parts and their identification.

Start-up and Shut-down Procedures

Pre-Operation Checks

Checks to ensure proper function before starting the machine.

Water Supply Requirements

Minimum water pressure and flow rate for operation.

Power and Hose Connections

Instructions for electrical supply and high-pressure hose connections.

Operating the Machine

Steps for starting, operating, and regulating pressure/flow.

High Pressure Pipe Cleaning

Optional procedure for cleaning pipes using the machine.

Post-Operation and Storage

Procedures for shutting down, cleaning, and storing the machine.

Maintenance and Care

High Pressure Pump Maintenance

Guidelines for oil changes and pump upkeep.

Pre-Filter and Frost Protection

Maintenance of the pre-filter and frost protection measures.

Electric Wiring Diagrams

Technical Data

Trouble Shooting

Declaration of Conformity

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