Outdoor Unit Malfunction And Protection Codes - Midea MTA1-76HR Technical Manual

Midea R22 T1 side-discharge duct manual

4.5 Outdoor unit malfunction and protection codes

Type
Phase sequence or lack of phase.
Ambient temperature sensor error.
High temperature protection of
condenser.
Condenser temperature sensor error.
System high pressure or discharge
temperature protection.
System low pressure protection.
Current overload protection.
Note:
●: Continuously flash.
☆5: Flash 5 times, and extinguish 3 seconds.
☆1: Flash once, and extinguish 3 seconds.
☆2: Flash twice, and extinguish 3 seconds.
☆3: Flash 3 times, and extinguish 3 seconds.
☆4: Flash 4 times, and extinguish 3 seconds.
☆6: Flash 6 times, and extinguish 3 seconds.
According to the two systems of the unit, the LED1 and LED2 will flash following the error or protection of
system A and system B. When there are the same errors or protections in the two systems of the outdoor,
LED1 will display, and LED2 will extinguish.
Phase sequence or lack of phase
36
LED1 LED2
● ●
Manual reset.
☆5 ☆5
Auto reset, after eliminate error.
☆1
Auto reset, after eliminate error.
☆1
☆2
Auto reset, after eliminate error.
☆2
☆3
Auto reset, after eliminate error. Manual
☆3
reset, 3 times protect within 1 hour.
☆4
Auto reset, after eliminate error. Manual
☆4
reset, 3 times protect within 1 hour.
☆6
Auto reset, after eliminate error.
☆6
MCAC-RTSM-201301-01
Remarks