Rheem Error Code Flame LED rapid blink: Amber flame LED – unexpected flame (Furnace)

Updated October 13, 2026 · by Aurora Star Tech Inc.

Rheem error code Flame LED rapid blink on a furnace means: Amber flame LED - unexpected flame. It is also called Rheem diagnostic code Flame LED rapid blink.

Critical severityFurnaceRheem/Ruud 802P / 80MDP 80% two-stage furnace (UT 1028-928 IFC) · R95P · Rheem (-)GRC/(-)GTC 90 Plus · Rheem 90RJ/90TJ 90 Plus

Homeowner? What Rheem code Flame LED rapid blink means for you

Stop and call Your furnace is reporting: Amber flame LED - unexpected flame. 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) 657-2977 Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Rheem error code Flame LED rapid blink mean?

Amber flame LED blinking rapidly means flame is sensed when it should not be. See code 14.

Applies to: 802P/80MDP (802PA050-150); R95P (R95PA040-115); Rheem (-)GRC upflow and (-)GTC downflow/horizontal 90 Plus condensing gas furnaces (UT Electronic Controls 1012-925 / 1028-928 and Invensys ICC-H1MC7-01 IFC); Rheem 90RJ and 90TJ 90 Plus condensing gas furnaces (UT Electronic Controls 1012-925 or Invensys ICC-H1MC7-01 IFC, hot surface ignition)

Common causes of Rheem code Flame LED rapid blink

Gas valve leaking or stuck open
IFC gas valve relay stuck / voltage at valve with no call
Gas valve leaking through or not shutting off

A technician checks these and 2 other possible causes on site before replacing any part.

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.

Rheem models that use code Flame LED rapid blink

Show all 34 models

90RJ04 90RJ06 90RJ07 90RJ09 90RJ10 90RJ12 90TJ04 90TJ06 90TJ07 90TJ09 90TJ10 90TJ12 R95PA0401317MSA R95PA0601317MSA R95PA0701317MSA R95PA0851521MSA R95PA1001521MSA R95PA1151524MSA R802PA050314MSA R802PA075417MSA R802PA100521MSA R802PA125524MSA R802PA150524MSA RGRC-04EMAES RGRC-06EMAES RGRC-07EMAES RGRC-07ERBGS RGRC-09EZAJS RGRC-10EZAJS RGTC-04EMAES RGTC-06EMAES RGTC-07ERBGS RGTC-09EZAJS RGTC-10ERBJS

Other Rheem Furnace codes

Code	Meaning
d4	Memory card invalid (MEM CARD INVALD)
d5	Card/hardware conflict (CARD-HRD CNFLCT)
d6	Blower HP conflict (BLWR HP CNFLCT)
d7	Blower manufacturer conflict (BLWR MFG CNFLCT)
d8	Old shared data (OLD SHARED DATA)
Flame LED off	No flame sensed (troubleshooting aid)
Flame LED slow blink	Amber flame LED - marginal flame sense
h flashing	Calibrating (CALIBRATE-NO V)
r	Lockout indicator

All Rheem Furnace error codes →

Rheem code Flame LED rapid blink: homeowner questions

What does Rheem code Flame LED rapid blink mean?

Amber flame LED - unexpected flame. Amber flame LED blinking rapidly means flame is sensed when it should not be. See code 14.

Is it safe to keep using my furnace with code Flame LED rapid blink?

No. Code Flame LED rapid blink is a safety shutdown, so keep the furnace off until a licensed technician has checked it.

Can I reset Rheem code Flame LED rapid blink myself?

Do not keep resetting it. Repeated resets can hide a safety problem; a licensed technician needs to find the cause.

Who can fix Rheem code Flame LED rapid blink near me?

Aurora Star Tech Inc. repairs Rheem 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

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Source: 802P: 92-24161-146-02, Flame Status LED, p.43, 51; R95P: Flame Status LED, p.90 (PDF p.94); Rheem (-)GRC/(-)GTC Installation Instructions 92-24161-88-00, Figure 56 IFC Troubleshooting Guide, p.54 (printed); Rheem 90RJ/90TJ Installation Instructions 92-24161-32-08, Figure 53 IFC Troubleshooting Guide, p.54 (printed p.53). 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.