Instruction of SR81 Split Pressurized Solar Hot Water System
Page 46 of 48
PT1000 resistance value
NTC 10K B=3950 resistance value
Error Code Explanation
Communication error
between display and
main controller
1.White wire connection broken, or not connected
reliably.
2.Communication error on display or on main
controlle
On the screen, sensor sign and warning sign blinks
Sensor failure, press “▲/▼” button, an error code instead
of temperature displays on the corresponding sensor place
Disconnect sensor, check resistance value with ohmmeter,
and compare the figure with below table.
Wire is shorten, Check wire
Wire is broken, Check wire
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