4.Use and Operation Instruction of Wire Controller
2.4 Keyboard lock
To avoid mis-operation, please lock the controller after parameter setting.
At the main interface, press
“
”
for 5 seconds, the keyboard will be locked. When
the keyboard is locked, press
“
”
for 5 seconds, the keyboard will be
unlocked.
NOTES: When the unit is in alarming state, the key lock can be removed automaticly.
Hold on
“
”
2.5 Malfunction display
Locked
There will be malfunction code showing on the controller screen when relative malfunction
occurs.
You can refer to the malfunction table to find out the failure cause and solution. For example
：
MODE
SET
Water inlet temp. Sensor failure
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