Error code

Mitsubishi Electric PQRY code 6841

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

Meaning

A control communication synchronism not recover: Indoor/heat source unit communication error (Transmitting error) (Heat source unit) Abnormal if "0" receiving is detected 30 times continuously though heat source controller circuit board has transmitted "1". Abnormal if heat source controller circuit board could not find blank of transmission path for 3 minutes.

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) Indoor/heat source unit connecting wire has contact failure. (2) Defective communication circuit of heat source controller circuit board. (3) Noise has entered power supply. (4) Noise has entered indoor/heat source unit connecting wire.

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