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Blueridge / Blueridge XS2 Core

Blueridge ECC1 error code

ECC1 is used on multi-zone systems when another indoor unit refrigerant sensor detects leakage. The alarm may show on one zone even though the leak alarm originates at a different indoor unit.

Urgency
stop use
Verified
Jul 31, 2026
Fix path
Technician

What it means

ECC1 is used on multi-zone systems when another indoor unit refrigerant sensor detects leakage. The alarm may show on one zone even though the leak alarm originates at a different indoor unit.

Urgency

Likely causes

  1. Refrigerant leak detected at another indoor unit
  2. Another zone refrigerant sensor has alarmed
  3. Leak at multi-zone refrigerant piping or joints
  4. Shared outdoor system responding to another indoor alarm

Homeowner fix

Turn the system off if safe and ventilate rooms served by the connected indoor units. Do not open any indoor unit or restart the system repeatedly.

When to call a pro

Call a licensed HVAC technician promptly and mention that ECC1 refers to another indoor unit refrigerant sensor detecting leakage.

This code points to refrigerant or sealed-system work - get repair quotes from contractors in your area.

Get repair quotes

Repair vs replace

A multi-zone leak is usually repairable once located. Replacement is considered only for older systems with inaccessible leaks or repeated major failures.

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Your Blueridge model

Blueridge XS2 Core model pages in the Blueridge catalog help compare this repair path with current replacement options.

For your technician

Technician note: identify the alarming indoor unit, follow R-454B leak-response procedures, inspect branch piping and flare joints, verify all refrigerant sensors, repair and recharge as required. Page context: Blueridge maps this display to the Blueridge XS2 Core line; source: manufacturer documentation; display convention: match the letter E, letter C, letter C, and one marker exactly before comparing neighboring codes.

Which systems show it

Blueridge XS2 Core

Related troubleshooting

Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

Related codes

Source

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Document
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Sourced Jul 2026

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