Chigo CHV Mini Series Service Manual page 106

5.28 P10: Anti-typhoon protection
(1) Enter this condition:
a) The fan has stopped output for several minutes;
b) The current speed detected by the fan is >=400rpm.
(2) Exit this condition:
a) After several minutes of anti-typhoon protection;
b) The fan detects the current speed <400rpm.
In order to prevent the software from controlling the fan to stop, the fan continues to rotate due to external force or
electronic control internal signal interference. At this time, if the outdoor unit has no external force to rotate, it can be
determined that it is an outdoor main PCB problem.
5.29 P11: T2 high temperature protection when heating
(1) How it works:
a) When T2 averages >63°C for a period of time, stop the compressor and display error code P11 for at least 30s;
b) When T2 <50°C, the protection is released. The compressor's three-minute delay protection is effective.
(2) Effect:
Prevent the four-way valve from being powered down and not recovering, jamming, or inserting the wrong end of the
four-way valve.
(3) Solution:
When checking the cooling, the four-way valve coil is still energized. If yes, please check if there is any problem with
the coil wiring. If not, proceed to the next step.
Check if the four-way valve is normal or not, and if the valve body is stuck.
5.30 P12: T3 overheating protection
Under normal circumstances, the outdoor pipe temperature of T3 will decrease when heating, and it will not be too
high, so it will not continue to be higher than 24 degrees under normal conditions. At this time, it will prove that the
probe temperature is not accurate or the probe senses the ambient temperature.
5.31 P13: Current detection error protection
Primary side current detection abnormal protection: 3 to 5 minutes after the compressor starts, if the primary side
current <1.5A, the current transformer fault (P13) is displayed, the compressor stops automatically for a period of time,
and it appears three times in 30 minutes. the electricity is not recoverable and the H11 is displayed.
201908
CHV Mini VRF 50/60Hz
105