Tosot TU18H3O, Owner'S Manual

Page: 41 / 48

DC Inverter U-match Series Cassette Type Unit
37
Number Error code Error Remarks
27 Lp Indoor and outdoor mismatch
28 U7 4-way valve direction changing protection
29 P0 Drive reset protection
30 P5 Over-current protection
31 P6
Communication error between main control
and drive
32 P7 Drive module sensor error
33 P8 Drive module over temperature protection
34 P9 Zero passage protection
35 PA AC current protection
36 Pc Drive current error
37 Pd Sensor connecting protection
38 PE Temperature drift protection
39 PL Bus low voltage protection
40 PH Bus high voltage protection
41 PU Charge loop error
42 PP Input voltage abnormality
43 ee Drive memory chip error
NOTICE:
When the unit is connected with the wired controller, the error code will be
simultaneously shown on it.
(2) Instructions to the Error Indicating Lamps on the Panel of the Cassette Type
Unit.
Fig.6.1