Rheem RGRA-07EMAES Error Code LED Steady On: Normal Operation
What Does Code LED Steady On Mean?
A steady green STATUS LED on the Rheem RGRA-07EMAES is the UTEC 1012-925 Integrated Furnace Control (IFC) telling you the microprocessor has power, has completed its self-check, and sees no fault conditions. The furnace is either actively heating or standing by, waiting for the thermostat to call for heat.
On this board the steady ON state sits between two other STATUS LED conditions: the LED completely off, which means no power reaches the board, and the various blink patterns (1 through 5 blinks) that report specific faults such as soft lockout, pressure switch, and limit problems. A steady light is the normal resting indication and is exactly what you want to see between heating cycles on a healthy single-stage furnace. Separately, the amber FLAME LED reports flame status and holds steady when the burners are lit and sensed correctly.
Because this is a normal, informational state and not a fault, there is nothing to repair. The only reason to investigate further is a mismatch between what the LED says and what the furnace does — a steady LED but no heat when you call for it — which points away from the control board.
What You'll Notice
- The green STATUS LED glows steady and does not flash any code
- The furnace runs normally on a call for heat, or sits quietly idle until the thermostat calls
Common Causes
| Cause | Likelihood | DIY? |
|---|---|---|
| Normal operation — furnace is powered and standing by or running | Most common | — |
How This Is Diagnosed
No diagnosis is needed for a steady LED — it is the normal powered indication and confirms the control has its 24V supply and sees no faults. If you are simply verifying furnace health, a steady green LED between cycles is the correct result.
The only follow-up applies when heat is called for but nothing happens despite the steady LED. In that case check the thermostat mode and setpoint, its batteries, and the thermostat-to-furnace wiring first, because the board is already reporting that it is powered and fault-free.
- The LED is steady but the furnace never starts when the thermostat is set to heat and raised above room temperature
- You have already confirmed the thermostat mode, batteries, and wiring and still get no response to a heat call
Frequently Asked Questions
Is a solid (non-flashing) green LED on my Rheem RGRA-07EMAES a problem?
No. A steady green STATUS LED means the control board has power and sees no faults — it is the normal, healthy state whether the furnace is running or standing by. No action is required.
The LED is steady but I'm getting no heat — what now?
A steady LED tells you the furnace control is powered and fault-free, so a no-heat situation usually starts at the thermostat. Confirm it is set to heat, the setpoint is above room temperature, and the batteries and wiring are good before suspecting the furnace.
✓ Verified against manufacturer service manual — March 2026