Goodman AMES800803B User Manual

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Service and Troubleshooting





Copyright © 2019-2020 Goodman Manufacturing Company, L.P.

This manual is to be used by qualied, professionally

trained HVAC technicians only. Goodman does not assume

any responsibility for property damage or personal injury

due to improper service procedures or services performed

by an unqualied person.

RS6621003r3

April 2020

®

is a registered trademark of Maytag Corporation or its related companies and is used under license.

All rights reserved.

TABLE OF CONTENTS

IMPORTANT INFORMATION ............................................ 2

PRODUCT IDENTIFICATION ........................................... 4

SYSTEM OPERATION ...................................................... 6

SCHEDULED MAINTENANCE ....................................... 25

SERVICING ..................................................................... 27

ACESSORIES ................................................................. 45

TROUBLESHOOTING CHART ....................................... 48

WIRING DIAGRAMS ....................................................... 51

Pride and workmanship go into every product to provide

our customers with quality products. It is possible, however,

that during its lifetime a product may require service.

Products should be serviced only by a qualied service

technician who is familiar with the safety procedures

required in the repair and who is equipped with the proper

tools, parts, testing instruments and the appropriate service

manual. 

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Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

0140M00517-A

Table of Contents

Questions and Answers:

J
Jessica Cook DVMAug 14, 2025
What to do if Goodman AMES800803B Furnace LED is flashing 1 time?
- S
  Stacy EdwardsAug 14, 2025
  If your Goodman Furnace fails to operate and the integrated control module diagnostic LED is flashing once, it indicates a furnace lockout due to excessive ignition retries. This can be caused by a gas interruption. You should locate and correct the gas interruption. Also check the front cover pressure switch operation, including the hose, wiring, and contact operation, and correct if necessary. Other possible solutions include replacing or realigning the igniter, checking the flame sense signal (sanding the sensor if coated or oxidized), checking the flue piping for blockage, proper length, elbows, and termination, and verifying proper induced draft blower performance.
J
Jessica KirkAug 17, 2025
How to troubleshoot Goodman AMES800803B Furnace with no LED signal?
- D
  David PowellAug 18, 2025
  If your Goodman furnace fails to operate and the integrated control module diagnostic LED provides no signal, ensure that there is 115 and 24 volt power to the furnace integrated control module. Check the integrated control module fuse (3A) and replace it if necessary. Check for possible shorts in the 115 and 24 volt circuits and repair as needed. A faulty integrated control module may also be the cause, so replace it if necessary. The cause may be a manual disconnect switch being OFF, door switch open, or 24 volt wires improperly connected or loose, or a blown fuse or circuit breaker.
R
reidkariAug 21, 2025
What does 6 flashes mean on a Goodman Furnace?
- F
  fernandoroweAug 21, 2025
  If your Goodman furnace fails to operate and the integrated control module diagnostic LED is flashing six times, it could be due to flame rollout. Check the burners for proper alignment. Also, check the flue and air inlet piping for blockage, proper length, elbows, and termination, and correct as necessary. Check the rollout limit and replace it if necessary. Ensure the induced draft blower is performing properly, and replace it if necessary. The problem may also be due to misaligned burners, a blocked flue and/or air inlet pipe, or a failed induced draft blower. Check and correct any loose or improperly connected wiring. A short in the 24 volt AC control circuits or safety circuits, or a faulty rollout limit can also cause this issue. Tighten or correct any wiring connections.
M
Matthew ThomasAug 25, 2025
Goodman AMES800803B Furnace flashes 8 times, what does it mean?
- I
  Ian ShawAug 26, 2025
  If your Goodman furnace is not operating and the integrated control module diagnostic LED is flashing eight times, check and correct the wiring from the integrated control module to the igniter. Replace the igniter if it is bad. Check and correct the unit ground wire. If the issue persists, replace the integrated control module. This may be caused by an improperly connected igniter, a bad igniter, a poor unit ground, a poor burner ground, or a faulty integrated control module.
S
Sarah SpencerAug 28, 2025
What does 2 flashes mean on a Goodman AMES800803B Furnace?
- B
  Bryan OliverAug 29, 2025
  If your Goodman furnace fails to operate and the integrated control module diagnostic LED is flashing twice, it could be due to induced draft blower pressure switch contacts sticking. In this case, replace the induced draft blower pressure switch. It could also be caused by shorts in the pressure switch circuit, which would require repairing the short.
L
Larry GillSep 1, 2025
Goodman AMES800803B Furnace flashes 11 times, what does it mean?
- D
  Donald DunlapSep 1, 2025
  If your Goodman furnace is not operating and the integrated control module diagnostic LED is flashing eleven times, check and correct the wiring from the integrated control module to the igniter. Replace the igniter if it is bad. Also, check and correct the unit ground wire. This issue may arise from an improperly connected igniter, a bad igniter, or a poor unit ground, or a poor burner ground.
J
James BergSep 5, 2025
Goodman AMES800803B Furnace flashes 12 times, what should I do?
- H
  Hannah NguyenSep 5, 2025
  If your Goodman furnace is not operating and the integrated control module diagnostic LED is flashing twelve times, check and correct the wiring from the integrated control module to the inducer. Also, check for any blockage in the inducer and in the vent, and replace the inducer if necessary. Check and correct the unit ground wire. If the problem persists, replace the integrated control module. The cause may be improperly connected inducer, a bad inducer, a poor unit ground, or a faulty integrated control module.
D
Dakota CummingsSep 9, 2025
How to fix Goodman AMES800803B LED flashing continuously?
- G
  Guy Ruiz MDSep 9, 2025
  If your Goodman furnace fails to operate and the integrated control module diagnostic LED is flashing continuously, review the wiring diagram to correct the polarity. Reverse the orange and gray wires going to the transformer. Verify proper ground. This issue arises when the polarity of the 115 or 24 volt power is reversed.

Goodman AMES800803B Specifications

General

Brand	Goodman
Model Number	AMES800803B
Type	Gas Furnace
Fuel Type	Natural Gas
Heating Capacity (BTU Input)	80, 000
Heating Capacity (BTU Output)	64, 000
Efficiency Rating	80% AFUE
Stages	Single Stage
Installation Type	Upflow/Horizontal
Ignition Type	Hot Surface Ignition
Heat Exchanger Warranty	Limited Lifetime Warranty
Parts Warranty	10-Year Limited Warranty

Summary

Important Information and Safety Notices

Consumer and Servicer Notices

General safety notices, words, and labels for consumers and technicians.

Carbon Monoxide Hazard Details

Details dangers and warnings related to carbon monoxide exposure.

Product Identification and Nomenclature

Furnace Nomenclature

Explains the model number structure and component identification.

Model Number Cross-Reference

Lists specific model numbers and their descriptions for identification.

System Operation Sequences and Safety

Normal Sequence of Operation

Describes the step-by-step process for heating, cooling, and fan modes.

Abnormal Heating Operation Causes

Details probable causes for questionable furnace operation and fixes.

Safety Precautions and Product Application

Covers general safety, product application, and installation location requirements.

Combustion Air and Venting Requirements

Details requirements for air supply, openings, and venting systems.

Scheduled Maintenance Procedures

Annual Inspection Procedures

Key components to inspect annually for proper operation and function.

Burner Checks and Performance Testing

Procedures for checking burner flames and conducting heating performance tests.

Servicing Procedures

Checking Voltage

Procedures for testing electrical voltage and continuity.

Blower, Duct, and Gas System Checks

Details checks for blower motor, duct static, gas valve, and pressure.

Ignition and Control Board Diagnostics

Procedures for checking ignitors, flame sensors, and integrated ignition control boards.

Troubleshooting Furnace Faults

LED Diagnostic Codes for Fault Finding

Explains LED flash codes for fault diagnosis and symptom correlation.

Common Furnace Malfunctions and Solutions

Details common furnace malfunctions and their corrective actions.

Furnace Wiring Diagrams

Typical Schematic

Provides a schematic for the integrated ignition control system.

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