Midea R410A Full DC Inverter Split Type Series Technical Manual MCAC-UTSM-201406
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3.7 Error code
If the system does not properly operate except the above mentioned cases or the above
mentioned malfunction is evident, investigate the system according to the following procedures.
Communication error between indoor unit and wired controller.
Communication error between indoor and outdoor unit.
T1, room temperature sensor error.
T2, pipe temperature sensor error.
T2B, temperature sensor error.
F0: communication error between indoor unit and wired controller
3.8 The installation of wired controller
Do not install the unit in a place vulnerable to leakage of flammable gases. Once flammable
gases are leaked and left around the wired controller, fire maybe occurs.
Do not operate with wet hands or let water enter the wired controller, otherwise, electric
shock may occur.
The wire should adapt to the wired controller current, otherwise, electric leakage or heating
may occur and result in fire.
The specified cables shall be applied in the wiring. No external force may be applied to the
terminal. Otherwise, wire cut and heating may occur and result in fire.
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