To Next PageTo Next PageWhy does my Goodman GMEC80 fail to operate?
Your Goodman furnace might not be working due to several reasons: * A defective disconnect switch. * A defective door switch. * No 115 volt power. * No 24 volt power. To resolve this, determine the cause and restore the proper high and low volt power supply.
What to do if my Goodman GMEC80 shows ten Red flashes on the control board?
If your Goodman furnace displays ten Red flashes on the control board, it indicates that gas valve current is detected with no call for heat. Ensure the gas valve isn't receiving voltage from an electrical short. If the valve wiring is correct, you may need to replace the control board.
What does it mean when my Goodman GMEC80 Furnace shows five Red flashes on the control board?
Five Red flashes on the control board of your Goodman furnace indicates that the limit & rollout circuit has been open for 15 minutes, potentially due to an open control board fuse or rollout switch. Confirm electrically safe condition before proceeding with repairs.
What does it mean when my Goodman GMEC80 Furnace shows four Red flashes on the control board?
If your Goodman furnace displays four Red flashes on the control board, it means there is an open limit circuit, which could be the main limit, aux limit, or roll out switch. Confirm electrically safe condition before proceeding with repairs.
What does it mean when my Goodman GMEC80 shows seven Red flashes on the control board?
If your Goodman furnace shows seven Red flashes on the control board, it signifies a lockout due to excessive retries from flame not being proven during trial for ignition. Confirm electrical and gas safe conditions before proceeding with repairs.
What does it mean when my Goodman GMEC80 shows six Red flashes on the control board?
If your Goodman furnace shows six Red flashes on the control board, it indicates a pressure switch cycling lockout, meaning the pressure switch has opened 5 times in the same heating cycle. Confirm electrically safe condition before proceeding with repairs.
What does it mean when my Goodman furnace shows one Red flash on the control board?
If your Goodman furnace displays one Red flash on the control board, it means that flame is sensed when no flame should be present. Confirm electrical and gas safe conditions before proceeding with repairs.
Why is my Goodman GMEC80 showing rapid Amber flashes on the control board?
Rapid Amber flashes on your Goodman furnace's control board indicate a low flame sense current. Clean the flame rod with steel wool. Confirm electrically safe condition before proceeding with repairs.
What does it mean when my Goodman GMEC80 Furnace shows three Amber flashes on the control board?
If your Goodman furnace displays three Amber flashes on the control board, it means there is a W2 call present without W1. Confirm electrically safe condition before proceeding with repairs.
What does it mean when my Goodman GMEC80 Furnace shows four Amber flashes on the control board?
If your Goodman furnace displays four Amber flashes on the control board, it indicates that Ylo or Y call is present without G. Confirm electrically safe condition before proceeding with repairs.
General| Model | GMEC80 |
|---|---|
| Type | Gas Furnace |
| Efficiency Rating | 80% AFUE |
| Fuel Type | Natural Gas or Propane |
| Blower Motor | Multi-speed |
| Stages | Single-stage |
| Heat Exchanger Material | Aluminized Steel |
| Thermostat Compatibility | Standard Thermostats |
| Warranty | 10-Year Parts Limited Warranty with online registration |
| Vent Type | Conventional (Natural Vent) |
Provides essential safety notices, warnings, and symbols for users and service personnel.
Crucial safety precautions and operating instructions to prevent hazards before using the appliance.
Step-by-step guide for operating the furnace safely.
Procedure for safely shutting off the gas supply to the furnace.
Explains the 14-digit model nomenclature used for product identification and parts.
Details various optional accessories available for the furnace with their respective functions.
Guidelines for making safe and correct electrical connections to the unit.
Instructions for connecting accessories requiring 115V power.
Explains thermostat wiring, single/two-stage applications, and furnace twinning.
Discusses blower speed adjustment, ductwork design, and air filter requirements.
Details the function of DIP switches on the control board for various operational settings.
Describes the step-by-step sequence of furnace operation in heat and cooling modes.
Provides a wiring diagram for the control board related to accessory installations.
Guides on checking transformer phasing, voltage, and wiring for proper operation.
Procedure for conducting a heating performance test and calculating BTU input.
Instructions for checking voltage, wiring continuity, and thermostat connections.
Procedures to test the transformer and integrated control circuit for faults.
Steps for inspecting and testing the multi-speed ECM blower motor for proper function.
Methods for measuring duct static pressure and adjusting temperature rise.
Procedures to test primary, auxiliary, and rollout limit controls for safety.
Instructions for checking the gas valve operation and manifold pressure.
Inspecting burners, orifices, ignitor, and flame sensor for proper combustion.
Procedure to test the pressure switch for correct operation and continuity.
Procedures for checking delayed ignition, control boards, and flame sensors.
Interprets LED flash codes and diagnostic indicators for troubleshooting furnace issues.
Provides methods for resetting the furnace after a lockout condition occurs.
Chart for recommended filter sizes and guidance on proper filter use.
Instructions for cleaning the flame sensor to ensure proper signal detection.
Visual checks for burner flame appearance, stability, and port condition.
Lists essential test equipment needed for accurate diagnosis and service.
Detailed wiring diagrams for electrical connections and components of the furnace.
Instructions on how to provide feedback on Goodman and Amana brand products.
Information and links for registering the purchased furnace for warranty coverage.
