9
Soft tissues or wipe cloths should be used to clean the surface of the device neutral detergents.
The display should be cleaned with a special fiber cloth and a screen cleaning spray. To prevent
corrosion, failure or damage to the tester, no abrasives or solvents should be used.
7. MAJOR FAULTS AND THEIR TROUBLESHOOTING
6.1. Cleaning and Care
•Whether the wires for connection to the tester terminals are in good condition (visual
inspection).
•Whether the measuring probes are in healthy condition (visual inspection).
•Do not store or use the device in premises where there is a high temperature, humidity,
danger of explosion or fire, strong magnetic field. As a result of exposure to dampness, the
tester performance may deteriorate.
User Manual - MS021 Tester
English
Problem
Possible cause
Troubleshooting
recommendations
1. Tester doesn’t turn on.
1.1. The power connector came
off.
1.2. The fuse burnt out.
1.1. Check the connection
reliability.
1.2. Replace the fuse.
2. “PROBE PROBLEM” message
appears when the tester is on.
2. Check the diagnostic probes
for damage.
2. Replace the diagnostic
probes.
3. “DIODE BREAKDOWN”
message appears when the
probes are open.
3. Check the reliability of the
connection of the probes.
3.1. Recover the contact.
3.2. Replace the diagnostic
probes.
4. The tested parameters are
displayed incorrectly.
4.1. Check the diagnostic
probes for damage.
4.2. Software error.
4.1. Recover the contact.
4.2. Clean the contact.
4.3. Contact the sales
representatives.
