General Troubleshooting; Error Display (Indoor Unit); For Ceiling&Floor Type; For A6 Duct Type - York YEFE BZTM-MOW1 Series Service Manual

2. General Troubleshooting

2.1

Error Display (Indoor Unit)

When the indoor unit encounters a recognized error, the indicator light will flash in a corresponding series, the timer
display may turn on or begin flashing, and an error code will be displayed. These error codes are described in the
following table:
For Ceiling&floor type:
Operation Timer Defrosting
lamp lamp
OFF fl fl F lash
Flash OFF
OFF OFF
Flash Flash
Flash off
OFF OFF

For A6 Duct type:

Operation
lamp Timer lamp
flashes
1 time
OFF
5 times
OFF
6 times OFF
7 times
OFF
8 times OFF
3 times
ON
11 times
ON
Alarm
Display
lamp lamp
OFF OFF E2
OFF OFF E3
Flash OFF E4
OFF OFF E7
off Flash EC
OFF Flash E8
Display
Indoor unit EEPROM parameter error
E0
Indoor room temperature sensor T1 is in open circuit or has
E4
short circuited
Evaporator coil temperature sensor T2 is in open circuit or
E5
has short circuited
Refrigerant leak detected
EC
EE Water level alarm malfunction
Condenser coil temperature sensor T3 is in open circuit or has
F2
short circuited (except for 18k/24k/36k cooling-only models)
Dual chips communication malfunction
FA
Error Information
Indoor room temperature sensor T1 is in open
circuit or has short circuited
Evaporator coil temperature sensor T2 is in open
circuit or has short circuited
Condenser coil temperature sensor T3 is in
open circuit or has short circuited (except for
18k/24k/36k cooling-only models)
Indoor unit EEPROM parameter error
Refrigerant leak detected
Water level alarm malfunction
Error Information
Solution
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Solution
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