DIY HVAC Tools

Bosch mini split code CP

Remote on/off contact open.

  • TypeStatus, not a fault
  • SystemDisplay
  • Can I fix it?Usually a homeowner fix
  • Applies toindoor unit display (four-character codes)

What CP means on a Bosch

An external on/off contact (a remote switch, thermostat or card-key input wired to the indoor unit) has switched the unit off.

On this platform, CP is a status, not a fault: the unit is telling you what it is doing; nothing is wrong.

What to do

You can almost always clear this yourself with the steps below.

  1. Check any external switch or contact wired to the indoor unit.

When to call a technician

This is not a fault. No technician is needed unless it will not clear.

Which Bosch units show CP

This page applies to Bosch Climate 5000 and Climate 5000 Multi units on the indoor unit display (four-character codes). Bosch's own documentation lists CP as "Remote on/off contact open", the same definition used across the Midea platform (four-character codes) it is built on. If your unit shows a code with a different shape (for example a four-character code, or a plain number), it is from a different table; use the lookup with your exact code.

Where Bosch shows this code

indoor unit display (four-character codes): The display shows a two-letter prefix and a two-character suffix, either together (EH60) or alternating (EH, then 60). Write both parts down; the suffix is what identifies the fault. EH and EL are indoor-side faults, EC is an outdoor-side fault, and PC is an outdoor protection: the unit stopped itself to prevent damage.

Other Bosch codes

Same part of the system as CP:

All Bosch error codes

CP on other brands

The same characters do not always mean the same thing. Check the brand on your unit.

Questions people ask

Is CP on a Bosch mini split an error?

No. CP is a status message: remote on/off contact open. An external on/off contact (a remote switch, thermostat or card-key input wired to the indoor unit) has switched the unit off.

Do I need a technician for Bosch CP?

You can almost always clear this yourself with the steps below. This is not a fault. No technician is needed unless it will not clear.

Sources

  • Bosch Climate 5000 Gen 3 Multi-Zone Ductless Installation Instructions (06.2022), error code tables
  • Bosch Climate 5000 single-zone installation manual (error code table)
  • Midea residential split service manual

Updated September 2026. Codes and definitions vary by model year. If your manual disagrees with this page, your manual wins. Send a correction.