Midea MONB-76C, Technical Manual

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Midea R22 T1 side-discharge duct manual MCAC-RTSM-201301-01
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4.5 Outdoor unit malfunction and protection codes
Type LED1 LED2 Remarks
Phase sequence or lack of phase.
● ●
Manual reset.
Ambient temperature sensor error.
☆
5
☆
5 Auto reset, after eliminate error.
High temperature protection of
condenser.
☆
1
Auto reset, after eliminate error.
☆
1
Condenser temperature sensor error.
☆
2
Auto reset, after eliminate error.
☆
2
System high pressure or discharge
temperature protection.
☆
3
Auto reset, after eliminate error. Manual
reset, 3 times protect within 1 hour.
☆
3
System low pressure protection.
☆
4 Auto reset, after eliminate error. Manual
reset, 3 times protect within 1 hour.
☆
4
Current overload protection.
☆
6
Auto reset, after eliminate error.
☆
6
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