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Error code reference

Goodman Heat Pump Error Code Ec

Heater kit too large, too small, or no match

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What the Ec error code actually means

Your Goodman heat pump's control board has not been correctly told what size electric heater is installed inside the unit. Small switches on the circuit board need to be set to match the heater so the system knows how to operate it safely. This is a setup or configuration issue that a technician can usually resolve without replacing any parts.

Diagnostic procedure

The full Ec procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Configure dip switches in accordance with Electric Heating Airflow Table. Reset power to the unit.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of Ec

Ranked by how often they cause this code
  1. 1Dip switches never configured at installation
  2. 2Control board replaced without reconfiguring switches
  3. 3Heater kit swapped for a different size without updating switches
  4. 4No heater kit installed but system expects one
  5. 5Incorrect or damaged heater kit installed

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Questions people ask about Ec

What does Ec mean on a Goodman heat pump?
The Ec code means the control board's dip switches are not configured to match the electric heater kit installed in the unit. The board cannot identify whether the heater kit is the correct size, too large, or too small based on its current switch settings. This is a configuration fault that prevents safe heater operation until the dip switches are set correctly according to the Electric Heating Airflow Table.
Is the Ec error code on a Goodman heat pump dangerous?
The Ec fault is a protective configuration error, meaning the system is flagging a mismatch before allowing the electric heater to operate at an incorrect load. It is not an immediate safety emergency, but the unit should not be left running with an unresolved Ec code since the heater may not operate correctly. Have the dip switches configured by a qualified technician to restore safe, proper operation.
How much does it cost to fix the Ec error code on a Goodman heat pump?
If the fix only involves reconfiguring the dip switches, the cost is primarily a service call fee, which typically ranges from $75 to $150 depending on your area and the technician. If the wrong heater kit was installed and needs to be replaced with a compatible one, parts and additional labor could bring the total cost to $200 to $600 or more depending on the heater kit size and local labor rates. In many cases this is a straightforward configuration correction with no parts required.
How do I fix the Ec error code on my Goodman heat pump?
Locate the dip switch bank on the control board and compare the current switch positions to the Electric Heating Airflow Table for your installed heater kit size. Set the switches to the correct combination for your specific heater kit, then fully cut power to the unit and restore it so the board can read the updated configuration. If you are unsure which heater kit is installed or which switch positions apply, a licensed HVAC technician should perform this step.
Will resetting the power clear the Ec code on a Goodman heat pump?
A power reset alone will not clear the Ec code if the dip switches are still set incorrectly. The fault will return as soon as the board powers up and reads the same mismatched switch configuration. The dip switches must be correctly set to match the installed heater kit first, and then a power reset is required for the board to recognize the corrected configuration and clear the fault.

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