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andrews ECOflo Series - User Manual

andrews ECOflo Series
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INSTALLATION AND SERVICE MANUAL Part number E864
Andrews. Built to perform.
Please read and understand these instructions before commencing installation and leave this manual with the customer for future reference.
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MVYUH[\YHSNHZHUKWYVWHUL48/
EC230/600, EC230/700, EC230/960, EC380/740, EC380/980, EC380/1220, EC380/1400 and EC380/1900
LEC230/600, LEC230/700, LEC230/960, LEC380/740, LEC380/980, LEC380/1220,
LEC380/1400 and LEC380/1900

Table of Contents

Questions and Answers

  • E
    Erik RobertsonJul 27, 2025
    What to do if the Andrews Water Heater upper sensor reading is faulty?
    • K
      kenneth44Jul 27, 2025
      If the Andrews Water Heater's upper sensor reading is faulty due to the resistance being out of range, first, check the continuity of the wire harness to the upper sensor. If the wire harness is okay, then replace the upper sensor.
  • E
    Edward BrownJul 31, 2025
    What to do if flame detected before ignition in andrews ECOflo Water Heater?
    • R
      Ricky PhillipsJul 31, 2025
      If the Andrews Water Heater detects a flame before ignition, ensure the gas valve has closed and that no voltage is present at the gas valve before the ignition cycle. Also, verify the wire positions on the wire harness are correct. If the gas valve is stuck open, replace it.
  • C
    cooperlindaAug 5, 2025
    What to do if flame detected after heating cycle completes in andrews ECOflo?
    • N
      Nicholas GlennAug 5, 2025
      If the Andrews Water Heater continues to detect a flame after the heating cycle completes, verify that the gas valve has closed and that there's no voltage present at the gas valve after the cycle. Also, check to ensure the wire positions on the wire harness are correct. If the gas valve remains stuck open, it should be replaced.
  • T
    triveraAug 9, 2025
    What to do if andrews ECOflo flame sensed out of normal sequence?
    • C
      Carrie DaltonAug 9, 2025
      If the Andrews Water Heater senses a flame out of the normal sequence (either before the gas valve opens or after it closes), verify that the gas valve has closed completely. Ensure there is no voltage present at the gas valve before or after the ignition cycle. Also, confirm that the wire positions on the wire harness are correct. If the gas valve is stuck open, replace it.
  • H
    Heather HamiltonAug 17, 2025
    What to do if andrews ECOflo damper end switch failed to close (stuck open)?
    • J
      jennifer28Aug 17, 2025
      If the flue damper on your Andrews Water Heater is stuck open, begin by checking if the flue damper has fully opened. If it hasn't, disconnect the damper harness at the damper plug connection and check for 24 volts between the pins on the red and white wires. If there's no voltage, inspect the wire harness or measure the output on the control board (pins 1&4). If there's still no voltage at the control board, replace it. Replace the wire harness if voltage doesn't pass to the pin terminals from the control. If there is 24 volts at the flue damper connection, replace the flue damper. If the damper is open, disconnect the harness and check continuity between the pins from the black and yellow wires on the flue damper. If there's no continuity, replace the flue damper.
  • C
    Charles LarsenAug 22, 2025
    How to fix low flame sense on andrews ECOflo Water Heater?
    • D
      Daniel CallahanAug 22, 2025
      To address a low flame sense issue in your Andrews Water Heater, first, determine the flame sense current in the Service mode while the water heater is operating. If it's less than 1.0 microamps, inspect the pilot flame sense rod using emery cloth. If the issue persists, replace the pilot.
  • J
    Jamie LewisNov 12, 2025
    What to do if Andrews Water Heater damper end switch failed to open (stuck closed)?
    • A
      Anna ConnerNov 12, 2025
      If the flue damper on your Andrews Water Heater is stuck closed, start by checking if the flue damper has fully closed. If not, disconnect the damper harness at the damper plug connection and check for 24 volts between the pins on the red and white wires. If there's no voltage, check the wire harness or measure the output on the control board (pins 1&4). If there's still no voltage at the control board, replace it. If voltage doesn't pass through the wire harness to the pin terminals from the control, replace the wire harness. If there is 24 volts at the flue damper connection, replace the flue damper. If the damper is closed, disconnect the harness and check continuity between the pins from the black and yellow wires on the flue damper. If there is continuity, the end switch is stuck open...

Summary

General and safety information

Health and safety regulations 1993

Details the manufacturer's and user's responsibilities regarding product safety.

Technical data

Dimensions and clearances

Provides physical dimensions and required installation clearances for models.

Installation

Introduction

Outlines legal requirements and standards for installation.

Location

Specifies requirements for the installation location and clearances.

Features

Describes key features of the ECOflo water heater.

Installation

Flue system

Describes the concentric flue system and its components.

Flue systems

Explains the balanced flue, gas water heater system.

Installing the vertical flue terminal

Provides instructions for installing the vertical flue terminal.

Gas connections

Specifies gas inlet connections and requirements.

Electrical supply

Details electrical supply requirements and connection.

Air supply and ventilation

Specifies air supply and ventilation requirements for installation.

Unvented systems

Details requirements for unvented hot water systems.

Installation

Installing the horizontal flue terminal

Provides instructions for installing the horizontal flue terminal.

Commissioning

Filling the heater with water

Step-by-step instructions for filling the water heater.

User’s safety guide

Provides essential safety information for users.

Air;gas mixture adjustment

Guidance on adjusting air/gas mixture for optimal combustion.

Operating instructions

Lighting instructions

Step-by-step instructions for lighting the appliance safely.

Temperature adjustment

Explains how to adjust the water temperature setting.

Operating instructions

Temperature selection procedure

Details the procedure for selecting and setting water temperature.

Operating instructions

Servicing

Introduction

Overview of recommended servicing procedures.

How to reset the control from Lockout conditions

Guide on resetting controls from lockout conditions.

Resetting error codes in soft lockout condition

Procedure for resetting soft lockout error codes.

Resetting error codes in hard lockout condition

Procedure for resetting hard lockout error codes.

Servicing

Error codes and error history display

Explains how error codes appear and are displayed.

Servicing

To change the Maximum Setpoint Limit (Max Setpoint) for the temperature setpoint

Procedure to adjust the maximum temperature setpoint limit.

Accessing service mode on the water heater display (Service personnel only)

Guide for service personnel to enter service mode on the display.

Servicing

Fault finding

Main power light is not on

Troubleshooting steps when the main power light is off.

Ignitor does not glow

Diagnosing why the ignitor is not glowing.

Thermostat does not call for heat

Steps to diagnose why the thermostat is not calling for heat.

Main valve does not turn on

Troubleshooting steps when the main gas valve fails to operate.

Ignition module ‘Power’ LED is not lit

Troubleshooting for a non-lit ignition module power LED.

Burner flame keeps going out

Diagnosing issues with the burner flame repeatedly extinguishing.

Fan does not energise

Steps to diagnose why the fan is not energizing.

Thermostat does not satisfy

Troubleshooting when the thermostat does not satisfy heating demand.

Parts list and illustrations

andrews ECOflo Series Specifications

General IconGeneral
Brandandrews
ModelECOflo Series
CategoryWater Heater
LanguageEnglish

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