o
Reconnect all plugs and sockets.
o
Run the instrument. If no problem, add
Thermosol to connector.
Chapter 3 Troubleshooting
PROBLEM
Possible
Causes
Corrective Action
No display when
power on
Power
Failure
• Check if there is power at the wall/building socket.
• You can use voltmeter or test pen to check power on the
wall/building socket.
• Ensure the socket switch is at ON position. As 1-1
Wall Socket
(Sample of Singapore Socket)
1-1
Power cord
is not
connected
properly or
faulty
• Check whether power cord has been connected properly
into wall/building socket and also into the unit.
• Check whether the power cord is giving power, measure the
AC voltage between the live and the neutral terminal of the
cord by using voltmeter (see drawing 1-2).
• If the voltage is NOT /-2% of the wall socket
voltage, replace the cord.
• If the voltage is /-2% of the wall socket voltage,
please proceed to next step.
LIVE NEUTRAL
1-2
Faulty fuse
• Use word screwdriver to take out the fuse holder, as 1-3
• Check whether the fuse is broken, as 1-4
• If yes, replace fuse. ((250V 5A
Φ
5×20)
1-3 1-4
Faulty Switch
• If the Switch is broken, unscrew the four screws of the
base cover, as 1-6
• Remove the side cover and top cover and take out the
Switch, as 1-7
•Replace Switch
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