Goodman Error Code 5 flashes: Flame sensed with no call for heat (Furnace)
Goodman error code 5 flashes on a furnace means: Flame sensed with no call for heat. It is also called Goodman diagnostic code 5 flashes.
Critical severityFurnaceGoodman/Amana *MES9 single-stage
Homeowner? What Goodman code 5 flashes means for you
Stop and call Your furnace is reporting: Flame sensed with no call for heat. This code is a safety shutdown. Turn the furnace off and call a licensed technician. Do not keep resetting it. If you smell gas, leave the house and call your gas utility or 911 from outside.
Safe things you can check yourself
- Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
- Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.
Call (647) 657-2977Book a service call
Licensed technicians serving Vaughan, Toronto and the GTA.
What does Goodman error code 5 flashes mean?
The control sees flame while the gas valve should be closed. The inducer and circulator blower run continuously and the furnace will not run.
Applies to: GMES9, GCES9, AMES9, ACES9, VMES9, VCES9 (single stage, 92% and 96%)
Common causes of Goodman code 5 flashes
- Short to ground in the flame sense circuit or wire
- Flame lingering in the burners
- Slow-closing gas valve
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.
Goodman models that use code 5 flashes
Show all 57 models
ACES96ACES960403BNAAACES960603BNAAACES960804CNAAACES961005CNAAACES961205DNAAAMES92AMES96AMES920403ANAAAMES920603BNAAAMES920803BNAAAMES920804CNAAAMES920805CNAAAMES921004CNAAAMES921005CNAAAMES921205DNAAAMES960403ANAAAMES960603BNAAAMES960803BNAAAMES960804CNAAAMES960805CNAAAMES961005CNAAAMES961205DNAAGCES96GCES960403BNAAGCES960603BNAAGCES960804CNAAGCES961005CNAAGCES961205DNAAGMES92GMES96GMES920403ANAAGMES920603BNAAGMES920803BNAAGMES920804CNAAGMES920805CNAAGMES921004CNAAGMES921005CNAAGMES921205DNAAGMES960403ANAAGMES960603BNAAGMES960803BNAAGMES960804CNAAGMES960805CNAAGMES961005CNAAGMES961205DNAAVCES96VCES960403BNAAVCES960603BNAAVCES960804CNAAVCES961005CNAAVMES96VMES960403ANAAVMES960603BNAAVMES960803BNAAVMES960804CNAAVMES961005CNAA
Other Goodman Furnace codes
All Goodman Furnace error codes →
Goodman code 5 flashes: homeowner questions
What does Goodman code 5 flashes mean?
Flame sensed with no call for heat. The control sees flame while the gas valve should be closed. The inducer and circulator blower run continuously and the furnace will not run.
Is it safe to keep using my furnace with code 5 flashes?
No. Code 5 flashes is a safety shutdown, so keep the furnace off until a licensed technician has checked it.
Can I reset Goodman code 5 flashes myself?
Do not keep resetting it. Repeated resets can hide a safety problem; a licensed technician needs to find the cause.
Who can fix Goodman code 5 flashes near me?
Aurora Star Tech Inc. repairs Goodman furnaces in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.
Homeowner help: Furnace Not Turning On: What to Check · Furnace Blinking Light: What the Flash Codes Mean
Troubleshooting guides
- Blower cycles on and off All brands · Furnace
- Blower runs, not enough heat All brands · Furnace
- Blowing cold air All brands · Furnace
- Board shows "flame sensed with no call for heat" All brands · Furnace
- Can't pull oil (distance/lift) All brands · Furnace
- CO in flue / poor combustion numbers All brands · Furnace
- Cold air blast at start / blower never stops All brands · Furnace
- Combustion gas / odour in house, flu-like symptoms All brands · Furnace
- Cycles on limit (not lockout) All brands · Furnace
- Does not start All brands · Furnace
- Flame burns a few seconds then out All brands · Furnace
- Flame conditions table All brands · Furnace
- Heat exchanger leak All brands · Furnace
- High blower-door ACH50 (>3) All brands · Furnace
- High fuel consumption All brands · Furnace
- High stack temperature All brands · Furnace
- High stack temperature / low efficiency All brands · Furnace
- Indoor blower runs, outdoor unit dead All brands · Furnace
- Limit opens All brands · Furnace
- Locks out — oil but no ignition All brands · Furnace
- Low CO2 (<8 %) All brands · Furnace
- Low draft / blowback All brands · Furnace
- Modulating furnace won't modulate All brands · Furnace
- Negative house pressure, backdrafting, infiltration All brands · Furnace
- No heat All brands · Furnace
- No heat (ignition stage) All brands · Furnace
- Noisy All brands · Furnace
- Noisy registers, drafts, blower overamps/ECM noise, coil freezing All brands · Furnace
- Not running / fault code All brands · Furnace
- Oil + ignition OK but no flame All brands · Furnace
- Oil on floor All brands · Furnace
- Pressure switch open / stuck All brands · Furnace
- Puff-back / delayed ignition All brands · Furnace
- Reduced airflow, hot motor All brands · Furnace
- Reduced pressure, smoky shutdowns, lockouts All brands · Furnace
- Rollout switch tripped All brands · Furnace
- Short cycling All brands · Furnace
- Smoke, soot, odour, pulsation All brands · Furnace
- Starts but locks out — no oil at nozzle All brands · Furnace
- Too little / too much air All brands · Furnace
- Unsatisfactory heat (short cycles / uneven / not enough) All brands · Furnace
- Water flows with furnace off All brands · Furnace
- Active alarm display Goodman · Furnace
- Air filter maintenance Goodman · Furnace
- Airflow display in the Status Menu Goodman · Furnace
- Airflow lower than demanded, furnace runs on low stage when high stage is expected Goodman · Furnace
- Airflow setup for communicating and non-communicating outdoor units Goodman · Furnace
- Allowed installation positions Goodman · Furnace
- Alternate combustion air opening (upflow or horizontal) Goodman · Furnace
- Alternate electrical, gas and vent connections Goodman · Furnace
- Alternate vent/flue location (upflow or horizontal left) Goodman · Furnace
- Annual inspection checklist Goodman · Furnace
- App access code and alternate connection Goodman · Furnace
- Auxiliary alarm (condensate) switch wiring Goodman · Furnace
- Auxiliary limit control (location and purpose) Goodman · Furnace
- Auxiliary limit switch open (blower compartment) Goodman · Furnace
- Blower door interlock Goodman · Furnace
- Blower motor does not have enough information, fails to start 40 consecutive times Goodman · Furnace
- Blower motor fails to start after 10 consecutive tries Goodman · Furnace
- Blower motor horsepower mismatch Goodman · Furnace
- Blower motor loss of rotor control or high current trip Goodman · Furnace
- Blower motor operating in power, temperature or speed limit (reduced airflow) Goodman · Furnace
- Blower motor over or under voltage, or over temperature on power module Goodman · Furnace
- Burner flame appearance check Goodman · Furnace
- Bypass the inductor to test an ECM motor Goodman · Furnace
- Canadian vent system requirements Goodman · Furnace
- Check and adjust temperature rise Goodman · Furnace
- Check auxiliary limit control (blower housing) Goodman · Furnace
- Check blower (inducer) pressure switch Goodman · Furnace
- Check burner orifices Goodman · Furnace
- Check duct static pressure Goodman · Furnace
- Check ECM control/end bell Goodman · Furnace
- Check ECM high voltage power circuits Goodman · Furnace
- Check ECM low voltage control circuit Goodman · Furnace
- Check ECM motor windings Goodman · Furnace
- Check flame rollout switch Goodman · Furnace
- Check gas input by clocking the gas meter Goodman · Furnace
- Check induced draft blower motor Goodman · Furnace
- Check line voltage to the furnace Goodman · Furnace
- Check primary limit control Goodman · Furnace
- Check primary limit control (90% furnaces) Goodman · Furnace
- Check the hot surface igniter Goodman · Furnace
- Check thermostat and low voltage wiring Goodman · Furnace
- Check transformer and control circuit Goodman · Furnace
- Check transformer phasing on unmarked transformers Goodman · Furnace
- Check wiring Goodman · Furnace
- Checking unit grounding Goodman · Furnace
- Circulator blower motor not running when it should be Goodman · Furnace
- Clear an E0 lockout (3 ways) Goodman · Furnace
- Clearing the fault history Goodman · Furnace
- Clocking a gas meter Goodman · Furnace
- Code release number menu Goodman · Furnace
- Combustion and ventilation air Goodman · Furnace
- ComfortBridge memory chip (last resort) Goodman · Furnace
- ComfortNet data line check - Goodman *MVC95/*CVC9 Goodman · Furnace
- Concentric and side wall vent kits Goodman · Furnace
- Condensate drain system general rules Goodman · Furnace
- Condensate drainage system check Goodman · Furnace
- Condensate switch open Goodman · Furnace
- Connecting the CoolCloud app when the 3-digit code is not visible Goodman · Furnace
- Control display blank, furnace dead - Goodman/Amana 9-speed ECM furnaces Goodman · Furnace
- Counterflow drain trap clearance Goodman · Furnace
- Counterflow horizontal, left side down - drain setup Goodman · Furnace
- Counterflow horizontal, right side down - drain setup Goodman · Furnace
- Counterflow vertical - drain exit side Goodman · Furnace
- Customer bundle: auxiliary condensate switch wiring Goodman · Furnace
- Data not yet on network Goodman · Furnace
- Dehumidification wiring and logic Goodman · Furnace
- Delayed ignition - rough light-off Goodman · Furnace
- Delayed ignition check Goodman · Furnace
- Diagnostics: last six faults storage Goodman · Furnace
- Direct vent (dual pipe) routing and terminations Goodman · Furnace
- Direct vent (dual pipe) termination Goodman · Furnace
- Direct vent combustion air intake connection Goodman · Furnace
- Display blank, furnace dead - Goodman *MVC95/*CVC9 Goodman · Furnace
- Drain pan and freeze protection Goodman · Furnace
- Dual certification: non-direct and direct vent Goodman · Furnace
- Elbow dimensions for vent piping Goodman · Furnace
- Electrical connections and wiring harness rules Goodman · Furnace
- Electronic air cleaner (EAC) line voltage connection Goodman · Furnace
- Electrostatic discharge (ESD) precautions Goodman · Furnace
- Electrostatic discharge precautions for the integrated control module Goodman · Furnace
- External gas valve error (valve not energized when it should be) Goodman · Furnace
- Flame detected when no flame should be present Goodman · Furnace
- Flame sensor cleaning and signal check Goodman · Furnace
- Flame sensor microamp check Goodman · Furnace
- Flashback - burning inside the burner venturi Goodman · Furnace
- Flashback at ignition or burner shutoff Goodman · Furnace
- Fossil fuel application with a heat pump Goodman · Furnace
- Front cover pressure switch tube relocation (horizontal, left side down) Goodman · Furnace
- Furnace fails to operate, control LED shows no signal Goodman · Furnace
- Furnace in lockout - how to reset it Goodman · Furnace
- Gas pressure test mode (100% firing) Goodman · Furnace
- Gas valve (two-stage) and front cover pressure switch Goodman · Furnace
- General ECM blower checks Goodman · Furnace
- Grounding fault Goodman · Furnace
- Heating performance test Goodman · Furnace
- High altitude application (USA) Goodman · Furnace
- High fire and low fire gas pressure test (longer term) Goodman · Furnace
- High fire gas pressure test (temporary) Goodman · Furnace
- High stage pressure switch open, furnace on low stage only Goodman · Furnace
- High stage pressure switch stuck closed at start of heating Goodman · Furnace
- Horizontal installation: suspension, leveling and drain Goodman · Furnace
- Igniter fault or improper grounding Goodman · Furnace
- Induced draft and circulator blower motors Goodman · Furnace
- Integrated control module diagnostic LED Goodman · Furnace
- Integrated ignition control board checks Goodman · Furnace
- Internal gas valve error (valve energized when it should not be) Goodman · Furnace
- Invalid memory card data Goodman · Furnace
- Junction box relocation and wiring rules Goodman · Furnace
- Learn menu (communication network reset) Goodman · Furnace
- Line voltage electronic air cleaner (EAC) connection Goodman · Furnace
- Lockout after excessive ignition retries (3 total) Goodman · Furnace
- Loss of communication with circulator blower motor Goodman · Furnace
- Loss of flame after establishment Goodman · Furnace
- Low flame signal, furnace runs normally Goodman · Furnace
- Low stage pressure switch contacts not closed Goodman · Furnace
- Low stage pressure switch open, induced draft blower runs continuously Goodman · Furnace
- Low stage pressure switch stuck closed at start of heating Goodman · Furnace
- Measure and adjust manifold gas pressure (36J54 valve) Goodman · Furnace
- Measure inlet gas supply pressure Goodman · Furnace
- Minimum clearances and service access Goodman · Furnace
- Multiple direct vent furnaces at one termination Goodman · Furnace
- No heat - Goodman/Amana 9-speed ECM furnaces Goodman · Furnace
- No ignition - voltage checks at the ignition control Goodman · Furnace
- Non-direct vent (single pipe) termination Goodman · Furnace
- Non-direct vent: intake elbow requirement Goodman · Furnace
- Open fuse, no furnace operation Goodman · Furnace
- Open the furnace advanced menus from a ComfortNet thermostat Goodman · Furnace
- Pipe slope, support and transitions Goodman · Furnace
- Poor combustion / flame problems - Goodman/Amana GM9C96 Goodman · Furnace
- Primary (high) limit open, circulator blower runs continuously Goodman · Furnace
- Propane and high altitude conversion notes Goodman · Furnace
- Push button navigation on the control board Goodman · Furnace
- Reading the furnace model number Goodman · Furnace
- Reload model data with the memory card Goodman · Furnace
- Reset the ComfortNet network (learn button) Goodman · Furnace
- Reset the furnace control to factory defaults (rFd) Goodman · Furnace
- Resetting a furnace lockout Goodman · Furnace
- Reversed line polarity Goodman · Furnace
- Rollout switch open Goodman · Furnace
- Safety circuit overview Goodman · Furnace
- Set heat anticipator on room thermostat Goodman · Furnace
- Sharp sheet metal edges Goodman · Furnace
- Standard furnace vent and intake connections Goodman · Furnace
- Status Menu rotation Goodman · Furnace
- Temperature rise out of range - Goodman *MVC95/*CVC9 Goodman · Furnace
- Test the ECM motor with the UltraCheck-EZ diagnostic tool Goodman · Furnace
- Testing gas heat only with a heat pump installed Goodman · Furnace
- Thermostat mounting location Goodman · Furnace
- Thermostat placement Goodman · Furnace
- Thermostat setup: single stage heat and cool Goodman · Furnace
- Turn on dehumidification Goodman · Furnace
- Unit address shown at power-up Goodman · Furnace
- Upflow horizontal, left side down - alternate drain setup Goodman · Furnace
- Upflow horizontal, left side down - drain setup Goodman · Furnace
- Upflow horizontal, right side down - drain setup Goodman · Furnace
- Upflow vertical - drain exiting left side Goodman · Furnace
- Upflow vertical - drain exiting right side Goodman · Furnace
- Upflow vertical install - drain exit side Goodman · Furnace
- Use a single-stage thermostat (timed staging) Goodman · Furnace
- Valid equipment combinations Goodman · Furnace
- Vent piping cement and solvent safety Goodman · Furnace
- Vent termination heights and sealing Goodman · Furnace
- Vent/flue pipe sizing and elbow rules (non-direct vent) Goodman · Furnace
- Venting check when an existing furnace is removed from a shared vent Goodman · Furnace
- Venting restrictions and vent system check Goodman · Furnace
- View and clear the last 6 furnace faults Goodman · Furnace
- View and clear the last 6 stored faults (L6F) Goodman · Furnace
- Wiring replacement and grounding requirements Goodman · Furnace
Source: Goodman Service and Troubleshooting GMES9*/GCES9*/AMES9*/ACES9*/VMES9*/VCES9* (RS6612016r3) , Troubleshooting Chart p.52; LED table p.44. Written in our own words as a summary; always check the original manual.
General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.