ZYMBO AATT Ventilarredo RX-200/ECO, Service Manual

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ZYMBO AATT
Ventilarredo Service Manual – English Pag. 86
code and backlight change to red color. Should there be multiple units having problems, they will be shown
one after another.
Error code definition:
Error Error code
Return air sensor faulty E1
Indoor coil sensor faulty E2
PG motor faulty E3
PG motor faulty E4
Anti cold fan E5
Anti heat fan E6
Indoor coil low temperature E7
local communication fault E8
Mode fault E9
water pump fault
Ea
（
command on board
） ，
E10(wired wall pad)
Indoor coil over temperature
Eb
（
command on board
） ，
E11(wired wall pad)
For system without master-slave wall pad will indicate unit error codes as above.
Short Time:
long pressed “fan-“ key within 10 seconds powered will send short time command, and
then the main board will come in short time state. Every timer which long than 1 min will short 10 times;
Long pressed “GROUP+SLEEP” key will come in Fahrenheit/Celsius setting. The display of temperature
will trans in Fahrenheit and Celsius.
7.14 MASTER&SLAVE CONNECTION SCHEME
1) Master Machine connected to Slave machines without wired wall pad