Error code
Mitsubishi Electric PQHY/PQRY code 6602
For your safety
This fault is rated high and involves an area that affects personal safety. No remote repair or do-it-yourself instructions are given; do not use the appliance or try to open or repair it.
Hazard area: mains voltage
Do not use the appliance and call an authorised service. If there is a risk to life, move to a safe place and see the emergency numbers.
The emergency numbers here are for Turkey. If you are outside Turkey, call your local emergency number.
No approved translation for this record yet; showing the original text.
Meaning
Transmission processor hardware error: Although "0" was surely transmitted by the transmission processor, "1" is displayed on the transmission line. The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred.
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 memberPossible causes
(2) Grounding fault of the transmission line (3) When grouping the indoor units that are connected to different heat source units, the male power supply connectors on the multiple heat source units are connected to the female power supply switch connector (CN40). (4) When the power supply unit for transmission lines is used in the system connected with MELANS, the male power supply connector is connected to the female power supply switch connector (CN40) on the heat source unit. (5) Controller failure of the source of the error (6) When the transmission data is changed due to the noise on the transmission line (7) Voltage is not applied on the transmission line for centralized control (in case of grouped indoor units connected to different heat source units or in case of the system connected with MELANS)
Solution
Solution steps are not shared for faults that may be dangerous.
No do-it-yourself solution is given for this fault. For your safety, call an authorised service.
Address of this page: https://www.remfixit.com/tr/mitsubishi-electric/pqhy-pqry/6602