HeatingCodes

Goodman and Amana 96% furnace alarm codes

By Jason Dearmin · Last reviewed November 14, 2026

These Goodman and Amana furnaces show a three-character code on a seven-segment display on the integrated control board, which you can see through the blower door window. The manual calls the table the Alarm Code Definition Table.

What this table coversCodes from Goodman's RS6612023 service manual for the ACVC96, AMVC96, GCVC96 and GMVC96 two-stage condensing furnaces (34.5-inch chassis). Other Goodman and Amana furnace lines can use different boards and code lists, so match your model number first.

How to read the display

The manual says an active alarm is reported in the status menu "starting with E and following with the appropriate two digit alarm code." That is why almost every code on the display begins with E. An alarm called "E0" appears as EE0 on the three-character display, and an alarm called "d0" appears as Ed0. The table below lists the three characters you will actually see.

Lockout means the furnace could not light after three attempts in a single call for heat. The manual says the control resets itself after a one-hour lockout, and that it can also be reset by interrupting 115-volt power to the furnace or by lowering the thermostat so there is no call for heat for a short time (the manual gives 1 to 20 seconds). Do not keep resetting a furnace that locks out repeatedly. That is the furnace telling you something is wrong.

Goodman / Amana code table

CodeMeaningWhat the document says
EEE Internal control fault
EE0 Lockout due to excessive retries or recycles The control tried to light three times in one call for heat. It resets itself after one hour, or by interrupting power or cycling the thermostat. A technician should find why it would not light. Full explanation
EE1 Low-stage pressure switch stuck closed at the beginning of heating The manual lists a sticking switch or a short in the pressure switch wiring as causes.
EE2 Low-stage pressure switch open The inducer runs but the switch does not close. The manual lists a blocked or pinched hose, blocked flue or inlet pipe, blocked drain, weak inducer or a bad switch. Full explanation
EE3 Open high limit switch The primary limit circuit is open and the blower runs. Check filters and ductwork first. Full explanation
EE4 Flame detected when no flame should be present
EE5 Open fuse
EE6 Low flame signal
EE7 Igniter fault or improper grounding
EE8 High-stage pressure switch stuck closed at start of heating cycle
EE9 High-stage pressure switch open
EEA Reversed line polarity
EEb Internal gas valve error
EEC External gas valve error
EEd Auxiliary limit switch open See the guidance on the open-limit page. The manual says to determine why the auxiliary limit opened before resetting it. Full explanation
EEF Condensate switch open
E10 Grounding fault
E11 Rollout switch open The manual says that if a rollout switch has tripped it is important to find out why. Full explanation
E12 Redundant relay open
E13 Redundant relay stuck closed
Ed0 Data not yet on network
Ed1 Invalid data on network
Ed4 Invalid external shared data
Ed5 Invalid downloaded firmware
Ed6 Unrecognized data ID
Eb0 Blower motor not running
Eb1 Blower communication alarm
Eb2 Blower motor HP/ID mismatch
Eb3 Blower motor operating in power, temperature or speed limit
Eb4 Blower motor current trip or lost rotor
Eb5 Blower motor locked rotor
Eb6 Over/under voltage trip or over temperature trip
Eb7 Incomplete parameters sent to motor
Eb9 Inadequate airflow
EC1 Network communication alarm
EC2 E-Module network communication alarm
EC3 Bluetooth module network communication alarm

Source: Goodman RS6612023, Alarm Code Definition Table (page 57), read from the printed table. Actions are given only where the manual describes the condition elsewhere.

Detailed explanations

SafetyThese tables describe what the manufacturer documents say. Gas, combustion, refrigerant and line-voltage repairs are for licensed professionals. If you smell gas, leave the building and call your gas utility or 911. Safety disclaimer.

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