Error code

Mitsubishi Electric CMB code 2000

No approved translation for this record yet; showing the original text.

Meaning

Interlock operation: In modes other than the stop mode, the pump interlock circuit performs an abnormal stop when it has been open continuously for 10 minutes, and at that time, displays “2000.” However, This is displayed when DIP SW 2-8 on the heat source unit MAIN board is OFF.

Member details

Signed-in members see the LED pattern and how to read the code with the remote control on eligible records.

View details as a member

Possible causes

(1) Failure of the heat source water circulating pump to operate. (2) Disconnection (3) Connector pulled out, faulty contact. (4) Faulty interlock input circuit on the relay board. (5) Faulty interlock input circuit on the control board.

Solution

Solution steps are available to members and are not shown on this page. Answer the questions to open the solution.

Remote technician support

Get help from a technician over a video call.

Send a message Voice call Video call