ESIE02–01 Troubleshooting
Part 3 – Troubleshooting 3–13
33
4
5
1
1.7 Troubleshooting with the Outdoor Unit LEDs and the Remote Control:
System Malfunctions
Malfunction
overview
The table below contains an overview of the system malfunctions.
Symbols and notes The table below describes the symbols and notes used in the malfunction overview.
If... Then...
Outdoor unit LED
Rem. contr.
display
Location of the malfunction
Malfunction description See page
HAP H1P H2P
Other
than PCB
PCB
outd. unit
PCB
ind. unit
Rem.
contr.
688Note 1 — — — —
Normal —
Note 2
U0
———
Gas Shortage Detection (U0) 3–54
687
U1
——
Reverse Phase (U1) 3–55
Note 2
U4 or UF
—
Transmission Error between
Indoor and Outdoor Unit (U4 or
UF)
3–57
U5
—
Transmission Error between
Indoor Unit and Remote Con-
trol (U5)
3–60
U8
—
Transmission Error between
MAIN Remote Control and
SUB Remote Control (U8)
3–61
UA
— —
Malfunctioning Field Setting
Switch (UA)
3–62
Symbol / note Description
Note 1 Variety of circumstances
Note 2 All combinations that are not “normal” are possible
7 LED is ON
6 LED is flashing
8 LED is OFF
High probability of malfunction
Low probabiltiy of malfunction
No possibility of malfunction (do not replace)
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