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Error code reference

Goodman Air Conditioner Error Code LS

Load Shedding Engaged

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What the LS error code actually means

Your Goodman air conditioner is in Load Shedding mode, which means an external switch or program has temporarily told it to shut off the compressor and any electric heat to save energy. This is not a breakdown; the unit is simply following instructions from a utility program or energy management system. Once the load shedding switch is opened or the program releases the unit, normal heating and cooling will resume automatically.

Diagnostic procedure

The full LS procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

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1
First diagnostic step
Open load shedding switch to allow occupant unit operation.
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Most common causes of LS

Ranked by how often they cause this code
  1. 1Utility demand-response program active
  2. 2Building automation or energy management system command
  3. 3LS switch left in closed position manually
  4. 4Wiring short to the LS switch terminals
  5. 5Faulty LS switch or load control relay

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Questions people ask about LS

What does LS mean on a Goodman air_conditioner?
LS stands for Load Shedding Engaged. It means the LS switch on the unit is in the closed position, which instructs the Goodman air conditioner to shut off the compressor and electric heat strips. This is a demand-response function, not a system fault. The unit will return to normal operation once the LS switch is opened.
Will resetting the Goodman unit clear the LS code?
A simple power reset will not clear the LS code if the load shedding switch remains closed. The condition is driven by the external switch state, not a stored fault in the control board. The code and the associated shutdown will only clear once the LS switch is physically or programmatically opened.
How much does it cost to repair a Goodman LS code issue?
In most cases, the LS code involves no repair cost at all since it typically results from a utility program or energy management system command rather than a failed component. If faulty wiring or a failed LS switch or relay is causing the condition, repair costs generally range from around $75 to $250 depending on the complexity of the wiring repair and local labor rates. Parts for a switch or control relay are typically inexpensive.
How do I fix the LS code on my Goodman air conditioner?
The primary step is to open the load shedding switch to restore normal unit operation. If the switch is controlled by a utility load control program, you may need to contact your utility provider or wait for the demand period to end. If the switch is controlled by a building energy management system, check that system for active load shedding events or manual overrides. If no external program is active, inspect the wiring at the LS switch terminals for shorts or faults.
Is it safe to keep running my Goodman unit while the LS code is showing?
The unit is not in a dangerous condition when the LS code is active. The control board has simply disabled the compressor and electric heat as intended by the load shedding function. There is no overheating, refrigerant, or electrical hazard associated with this code. However, the unit will not provide heating or cooling until the load shedding condition is cleared.

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