E901 - Samsung RC090MHXEA Service Manual

E901

E901 is an error with the outdoor unit, lower (inlet or return)
water heat exchanger sensor. It's connected to a yellow plug on
the bottom right of the main PCB connector CN44 in a yellow
plug; it's the top two wires
The controller will display TEST.
temperature will be displayed and the word IN shows.
This is the reading from the sensor.
If you compare this with the actual water return temperature it should be exactly the same. If
they are different the sensor needs replacing.
To exit service mode press and hold cancel delete for 6 seconds
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You can view this sensor
in the test mode from the
remote controller inside.
To access TEST mode press
button and test button together for 6
seconds.
Press the
blue view
button
once, a
©G Hendra Nov 18
blue set
44