Error 438 — EVI (ESC) EEV leakage or internal leakage

What does 438 mean?

The Enhanced Vapor Injection (EVI) Electronic Expansion Valve (EEV) is experiencing leakage, either externally or internally within the intercooler, or has an incorrectly inserted connector.

• Leaking EVI EEV
• Internal leakage in the intercooler
• Improper connection of the EVI EEV connector
• Faulty EVI system component

Click steps to track your progress.

1. 1

   Inspect the EVI EEV for any signs of refrigerant leakage.

2. 2

   Check the intercooler for internal leaks.

3. 3

   Ensure the EVI EEV connector is securely and correctly inserted.

4. 4

   This issue requires professional diagnosis and repair of the EVI system.