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Blueridge / Blueridge XS2 Core

Blueridge FHCC error code

FHCC means the indoor unit has detected a refrigerant sensor malfunction. The manual says the sensor cannot be repaired and must be replaced with the manufacturer-specified sensor.

Urgency
advisory
Verified
Jul 31, 2026
Fix path
Technician

What it means

FHCC means the indoor unit has detected a refrigerant sensor malfunction. The manual says the sensor cannot be repaired and must be replaced with the manufacturer-specified sensor.

Urgency

advisory

Schedule service before relying on the unit because the leak-detection sensor is part of the R-454B safety system.

Likely causes

  1. Refrigerant sensor malfunction
  2. Failed refrigerant sensor module
  3. Sensor at or beyond its service life
  4. Sensor harness or connector problem

Homeowner fix

Power cycle once only if safe. If FHCC remains or returns, leave the unit off and do not open the indoor unit.

When to call a pro

Call a licensed HVAC technician if FHCC appears. Tell them the Blueridge manual identifies FHCC as refrigerant sensor malfunction.

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

Get repair quotes

Repair vs replace

Sensor replacement is normally the right repair. Full system replacement is rarely justified unless the unit has other major failures.

See Blueridge mini-splits

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: verify the sensor harness and operating conditions, then replace a failed sensor only with the manufacturer-specified part; do not attempt sensor repair. Page context: Blueridge maps this display to the Blueridge XS2 Core line; source: manufacturer documentation; display convention: match the letter F, letter H, letter C, and letter C 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

Source document not identified in import data
Document
Source document not identified in import data
Sourced Jul 2026

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