What It Means
Unit is powered and in normal standby mode with no active heating or cooling call.
Bryant Heat Pump
Bryant Heat Pump Error Code solid
Troubleshooting guide for the Bryant Heat Pump system fault solid.
Possible Causes
- Normal standby mode between heating or cooling cycles.
- Thermostat demand signal not reaching outdoor control board.
- Faulty thermostat wiring or reversing valve control circuit.
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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Full Diagnosis
Standby. Unit is powered and in standby with the amber LED continuously lit and no flash pattern — the board's way of showing a good power-up with no active fault and no current call for heating or cooling. This is the resting state the outdoor unit returns to between demand cycles: compressor, outdoor fan, and reversing valve are all de-energized, and the board is simply waiting on a thermostat signal. It's functionally identical whether the unit is idle during a mild-weather stretch with no demand or pausing briefly between cycles, so a solid amber LED by itself is not diagnostic of anything. It is normal and expected for the LED to sit solid for extended periods, including days, during shoulder-season weather when neither heating nor cooling is called for.
All Recorded Causes
Normal standby operation — no heating or cooling demand is present, and the board is not reporting or storing any fault. No action required. If the LED remains solid amber even when a thermostat demand should be active — for example, the thermostat is calling and the indoor blower is running but the outdoor unit never starts — stop treating this as normal standby and check thermostat wiring, the reversing valve solenoid, and the outdoor unit's contactor/compressor circuit instead, since a persistent solid LED during an active demand indicates the demand signal isn't reaching or being acted on by the outdoor board.
Verify Before Replacing Parts
- Confirm the exact Bryant model family and heat pumps context before acting on a generic code description.
- Confirm filter condition, blower operation, and coil cleanliness before replacing any controls — start by ruling out whether normal standby operation — no heating or cooling demand is present, and the board is not r….
- Measure airflow-related readings that match the symptom, such as temperature split or static pressure, and check whether no action required.
- After the correction, run the system long enough to confirm the heat pumps fault does not return under normal load.
Still unsure about this fault?
ACLogics walks you through Bryant Heat Pump diagnostics step-by-step — so you confirm the cause before swapping parts.
