DC Inverter U-match Series for R410A Unitary Split Air Conditioner
28
No. Error code Error
14 H7 Driver out-of-step protection
15 HC Pfc protection
16 Lc Startup failure
17 Ld Compressor phase-sequence protection
18 LF Power protection
19 U7 4–way valve switch-over error
20 P0 Driver reset protection
21 P5 Over-current protection
22 P6 Master control and driver communication error
23 P7 Driver module sensor error
24 P8 Driver module high temperature protection
25 P9 Zero-crossing protection
26 PA AC current protection
27 Pc Driver current error
28 Pd Sensor connection protection
29 PE Temperature drift protection
30 PL Bus low-voltage protection
31 PH Bus high-voltage protection
32 PU Charge loop error
33 PP Input voltage error
34 ee Drive memory chip error
35 C4 ODU jumper cap error
When the unit is connected with the wired controller, the error code
will be simultaneously shown on it.
4.3 Unit Maintenance
ķ. Only professionals are allowed to carry on daily maintenance.
ĸ. Before contacting any wire, make sure power is cut off.
Ĺ. Do not let any inflammable objects near the unit.
ĺ. Do not use organic solvent to clean the air conditioner.
Ļ. If you need to replace a component, please ask a professional to repair with a
component supplied by the original manufacturer so as to ensure the unit’s
quality.
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