Benchmark Scientific BSH5000, Руководство по эксплуатации, Страница: 13 / 15

BSH5000 Operation manual Chapter 5 Failure Analysis and Troubleshooting
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Chapter 5 Failure Analysis and Troubleshooting
Problems and actions
No. Common problem Possible cause Action(s)
1
No display on the
screen
No power on the main
power plug Check power supply and
plugged properly
Faulty fuse Change fuse
On/Off button broken Change button
Others Contact the supplier
2
The actual and
displayed temperatures
are quite different Broken sensor or
loose contact of the
block
Contact the supplier
3
“OPEn” displayed,
alarming “beep”
Sensor disconnect
Contact the supplier
“SHOr” displayed,
alarming “beep”
Sensor short-circuit
“HHHH” displayed,
alarming “beep”
Sensor broken, or
block temperature is
too high
4 No heating
Sensor broken
Contact the supplier
Heating tube broken
5 Keys don’t work Faulty key Contact the supplier