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F48

F48 - Outdoor EVA outlet temperature sensor abnormality

Panasonic · Aquarea Heat Pumps

What does F48 mean?

The sensor measuring the temperature at the outdoor Expansion Valve (EVA) outlet is faulty or disconnected. The system will stop operation after 5 seconds.

Common Causes

  • Outdoor EVA outlet temperature sensor is defective or disconnected

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the outdoor EVA outlet temperature sensor is securely connected.

  2. 2

    Inspect the sensor for any damage.

  3. 3

    Replace the sensor if it is defective.

  4. 4

    Contact a qualified installer or service technician for assistance.

Browse all codes in this manual (69)
Verified technical data. Last updated: April 2026

Related Faults

2 beeps then pause2 beeps then pause - Overfill warning3 red flashes3 red flashes - Communication errorError Code DisplayError Code Display - Abnormality detected
Source: Panasonic Aquarea Heat Pumps
Open Manual (Page 77)Search more codes in this manual