136
PB
TROUBLESHOOTING
High temperature and Overload Protection Diagnosis
Is outdoor ambient temperature in normal range?
Are the outdoor and indoor fans operating normally?
Is the heat dissipation environment inside and outside the unit is good?
(AP1 below refers to the outdoor control panel)
End
Y
Y
N
Y
N
N
Y
N
Overheat and high
temperature protection
Is outdoor ambient temperature higher than 127.4
˚
F
20 minutes after the complete
unit is powered off.
Is heat dissipation of the indoor unit
and outdoor unit abnormal?
Improve the heat
Normal protection, please operate
it after the outdoor ambient temp-
erature is normalized.
dissipation environ-
ment of the unit
Does the outdoor fan work normally?
Replace the
control panel
AP1
Replace the
outdoor fan
1. Check if the fan terminal OFAN
is connected correctly
2.
Unplug the fan hub , ohms table Fan
measuring between any two end
terminals of the resistor , resistance is less
than
1KOhm
Summary of Contents for FSHW091
Page 8: ...8 INTRODUCTION FSHSW09A1A FSHSW12A1A Figure 102 Indoor Units FSHSW18A3A FSHSW24A3A FSHSW36A3A ...
Page 47: ...47 INSTALLATION ...
Page 48: ...48 INSTALLATION Installation Tools ...
Page 72: ...72 WIRED CONTROLLER Display ...
Page 122: ...122 TROUBLESHOOTING Malfunction of IDUFanMotorU8 Service Manual No Start End ...
Page 146: ...146 WIRING DIAGRAMS Figure 8054 9 12KOutdoorUnitWiringDiagrams 60000706067401 3 2 N 1 C3 C4 ...
Page 158: ...158 FIgure 906 PARTS CATALOG 9KOutdoorUnit 28 27 29 31 30 32 ...
Page 160: ...160 PARTS CATALOG 12k OutdoorUnit 28 27 29 31 30 32 FIgure 907 ...