Test Operation
ESIE15-13B
60
Field Setting
1.5
Failure Diagnosis at the Moment of First Installation
• In case nothing is displayed on the remote controller (the current set temperature does not
display), check for any of the following abnormalities before you can diagnose possible
malfunction codes.
• Disconnection or wiring error (between power supply and outdoor unit, between outdoor
unit and indoor units, between indoor unit and remote controller).
• The fuse on the outdoor unit PCB may have run out.
• If the malfunction code “
E3
”, “
E4
”, “
L8
” or “
U0
” is displayed on the remote controller, there is a
possibility that the stop valves are closed.
• If the malfunction code “
E3
”, “
E4
”, “
L4
” or “
L8
” is displayed on the remote controller, there is a
possibility that air inlet or air outlet are blocked.
• If the malfunction code “
U2
” is displayed on the remote controller, check for voltage
imbalance.
• If the malfunction code “
U4
” or “
UF
” is displayed on the remote controller, check the inter-unit
branch wiring connection.
• If the malfunction code “
UA
” is displayed on the remote controller, there is a possibility that
connection is with incompatible indoor unit.
Summary of Contents for GQI-Eco Series
Page 2: ......
Page 6: ...ESIE15 13B iv Table of Contents...
Page 14: ...Introduction ESIE15 13B xii...
Page 18: ...Outlook Outdoor Units ESIE15 13B 4 General Information 2 Outlook Outdoor Units...
Page 22: ...Operating range ESIE15 13B 8 General Information...
Page 108: ...Emergency Operation ESIE15 13B 94 Field Setting...