Carrier 40VMU, Инструкция по установке и обслуживанию, Страница: 15 / 18

15
TROUBLESHOOTING
Figure 30 shows the LED display panel. See Table 8 for a summary of display indicators. Table 9 lists problems, possible causes, and
possible solutions.
Fig. 30 —40VMU Display Panel
Table 8 — Display Indicators
TYPE LED DISPLAY MODE/STATUS
[NO ERROR]
Setting Temperature Starting
“--” Shutdown
“--” Standby
“--” Timing ON
“--” Timing OFF
Setting Temperature System Defrost ON
Setting Temperature System Defrost OFF
ERROR
dd Heating / Cooling Mode Conflict
E1 Communication Error Between Indoor and Outdoor Unit
E2 Check Indoor Ambient Temperature Sensor (T1/T0)
E4 Check Evaporator Temperature Sensor (T2B)
E5 Check Evaporator Outlet Temperature Sensor (T2A)
E6 Check DC Fan Motor
E7 EEPROM Error (Data Storage)
E9 Communication Error Between Indoor Unit and Controller
Eb EEV Error
Ed Outdoor Unit Error
EE Condensate Error
FE No Address When Power ON For First Time
UU MDC In Auto System-Check Mode
LEGEND
EEPROM — Electronically Erasable Programmable Read-only Memory
EEV — Electronic Expansion Valve
MDC — Multiport Distribution Controller
LIGHT
OPERATION
DEFROST/
FAN LIGHT
ALARM LIGHT
TIMER LIGHT
INFO BUTTON
a40-1878