Error 5 — IPM protecting compressor from overload

What does 5 mean?

The IPM is preventing the compressor from running due to an overload condition. This can be caused by low building power, system restrictions, or refrigerant overcharge.

• Low building power supply
• Restrictions in the system
• Non-condensible gas in the system
• Plugged coil
• Excessive load
• Refrigerant overcharge

Click steps to track your progress.

1. 1

   Check the building's power supply voltage.

2. 2

   Inspect the refrigeration circuit for any blockages or restrictions.

3. 3

   Verify the refrigerant charge is correct.

4. 4

   Clean any plugged coils.