Auto-Sleeper Harmony User Manual (English)

Questions and Answers:

C
Christian TorresAug 12, 2025
What to do if Auto-Sleeper Harmony PSU has no 12 volt output?
- J
  Juan CaseyAug 12, 2025
  If there's no 12 volt output from the PSU, it could be due to several reasons. The battery protect feature might have activated to safeguard the vehicle or leisure battery. In this case, inspect the batteries and fuses, then switch on the PSU isolate switch and charger switch, making sure the mains supply is connected. Alternatively, over voltage protection might be active, indicated by a warning on the control panel; verify the regulator's connection and operation within specified parameters. A control panel software crash could also be the cause; try rebooting the control panel by turning off the PSU isolate switch. Also, check that the equipment is switched on and properly connected to the 12V supply.
S
Sandra HaleAug 16, 2025
Why is reverse polarity light illuminated on Auto-Sleeper Harmony Control Systems PSU?
- J
  John MartinAug 16, 2025
  The reverse polarity light illuminating on the PSU is a normal side effect when using some types of generator.
D
Donna LynchAug 20, 2025
What to do if Auto-Sleeper Control Systems lights are not working?
- J
  John JohnsonAug 20, 2025
  If the lights aren't working, start by checking the fuses, replacing any blown ones with the correct value as indicated in the fuse table. Also, make sure the lights are turned on by pressing the lights button and adjusting the dimmer on the control panel.

Auto-Sleeper Harmony Specifications

General

Brand	Auto-Sleeper
Model	Harmony
Category	Control Systems
Language	English

Summary

Lighting, Water and Power

You're in Control

Explains the EC700 touch-screen control panel for monitoring and controlling motorhome systems.

The Power Supply Unit

Power Supply Unit Component Layout

Details the components of the Sargent EC700 Power Supply Unit (PSU).

Connecting to Mains 230V Supply and Safety Checks

Provides step-by-step instructions for connecting to mains supply and safety checks.

The Control Panel

Control Panel Operation

Describes the functions of various buttons on the control panel.

Monitoring Power and Water Levels

Power and Water Level Monitoring

Explains how to monitor power and water levels using the menu screens.

Water Levels Screen

Power Levels Screen

Explains how to view battery voltages, current, AC, and solar current.

Control Panel Settings

Setting Control Panel Options

Guides on accessing settings like power, lighting, screen, time, and date.

Power Settings Screen

Details options for battery selection, tank fill, and tank heaters.

Technical Data

Sargent EC700 System Technical Information

Technical Information Summary

Residual Current Device & Miniature Circuit Breakers

Explains the function and testing of RCD and MCBs.

Battery Charger

Intelligent Three-Stage Battery Charger

Details the intelligent three-stage battery charging process and power conversion.

12 Volt DC Fuses

Fuse Replacement Warning

Warns about replacing fuses with the correct value to avoid damage.

PSU Fuse Allocation

Lists fuse numbers, ratings, colours, and their respective outputs/functions.

Water Pump Operation

System Warnings

Summary of System Warnings

Lists various system warnings, their triggers, and display messages.

Leisure Battery Voltage Warnings

Details warnings for low and high leisure battery voltage.

Remote Features

Auto-Sleepers LOCATE Introduction

Introduces the online portal for managing and monitoring the motorhome remotely.

Location Tracking

Temperature Control

Digital Control Panel for Heaters and Air Conditioning

Explains how the Truma CP plus panel sets temperature for heating and AC.

Safety First

The Digital Display

Display and Control Elements

Identifies and explains the various display elements and control buttons.

Rotary Push Button Operation

Details how to use the rotary push button for navigation and selection.

Initial Start-up Procedure

Guides through the required steps for the initial system start-up.

Functions

Display Menu Navigation

Explains how to select functions from the menu bars and view operating parameters.

Switching On and Off

Changing Room Temperature

Interior Climate Control

Introduces options to set room temperature for heating and AC.

Change Room Temperature

Guides on selecting and setting the desired room temperature.

Air Conditioning System Operation

Automatic Air Conditioning System

Changing the Hot Water Level

Heating Hot Water Faster and Longer

Change Hot Water Level

Guides on selecting and setting the hot water heating level (Boiler, eco, hot, boost).

Selecting the Energy Source

Choosing the Right Energy Source

Select Energy Source

Guides on selecting energy sources like Gas/Fuel, MIX, or Electric.

Selecting the Fan Level

Choosing the Right Fan Level

Select Fan Level

Guides on selecting fan levels for heaters and air conditioning systems.

Air Conditioning System Fan Levels

Activating the Time Switch

Set Time Switch

Warning: Toxic Exhaust Fumes

Warns about toxic exhaust fumes when the heater is activated in closed spaces.

Enter Start Time

Enter End Time

Activate Time Switch (ON)

Deactivate Time Switch (OFF)

Switching Lighting On and Off

Switch Lighting On/Off

Setting the Time

Set Time

Service Menu

Service Menu Overview

Lists tools and procedures for setting up and calibrating boiler and AC units.

Calibrating Heater Temperature Sensor

AC SET

ACC Activation

Automatic Air Conditioning System Requirements

Functioning Requirements

Presetting (RESET)

Details the reset function to return the CP plus control panel to factory settings.

Special Displays and Warnings

Display Indicators Overview

Special Display Indicators

Warning Symbol Explanation

Reading Out Warning Codes

Guides on reading and interpreting warning codes for troubleshooting.

Fault Handling

Troubleshooting Guide

Sargent EC700 Control Panel Faults

Lists common faults, their possible causes, and proposed fixes for the control panel.

Reverse Polarity Light Illumination

Display Indicators in Troubleshooting

Control Panel Problems

Control Panel Display and Function Issues

Addresses issues like no display, 12V power loss, and erratic panel function.

No 230V Supply Issues

No 12 Volt Output from PSU

Troubleshooting 12V Output Issues

Covers common issues like charger, battery, power button, fuse, and equipment status.

Auto-Sleeper Harmony User Manual

Table of Contents