1. Common Problems You Can Handle Yourself (No Need for Repair)
Symptom: Equipment won't start, no response when powered on
Diagnosis: Loose plug, blown fuse, or program not reset
Solution: Re-plug the power cord, replace the fuse, and restart to reset.
Symptom: Slight vibration or noise during operation
Diagnosis: Caused by symmetrical loading of dye cups or single-cup operation
Solution: Ensure at least two dye cups are placed symmetrically; use a balance cup for single samples.
Symptom: Dye cup leakage
Diagnosis: Deformed sealing ring, loose cup lid
Solution: Replace the silicone sealing ring (recommended to replace every 6 months).
Symptom: Temperature not reached the set value
Diagnosis: Temperature probe not inserted into the dye cup containing the sample, or too much dye solution
Solution: Correctly install the probe; control the dye solution volume to not exceed 2/3 of the cup capacity.
2. Situations Requiring Contact with Manufacturer or Professional Repair
Symptom: Continuous abnormal noise (such as "clicking" sound, metallic sound) (Friction noise)
Judgment Basis: Motor bearing wear, rotor eccentricity
Repair Necessity: Involves internal mechanical structure, requires disassembly and inspection or bearing replacement
Symptom: Slow heating or no heating at all
Judgment Basis: After confirming normal power supply, heating element does not respond, instrument shows no current
Repair Necessity: May indicate aging heating element or circuit failure, requires professional inspection and replacement
Symptom: Display screen displays garbled characters, touch screen malfunctions and restart is ineffective
Judgment Basis: Power off and restart is ineffective, control board is damp or program is damaged
Repair Necessity: Requires system refresh or control module replacement, it is recommended to contact after-sales service
Symptom: Obvious shaking of the machine body or frequent loosening of base screws
Judgment Basis: Equipment is placed stably but vibration is aggravated, may indicate fatigue of the base structure or weld cracks
Repair Necessity: There is a safety hazard, requires manufacturer assessment to determine if repair is possible
3. Judgment Procedure After Emergency Shutdown
Step 1: Power off and cool down, avoid operating with electricity
Step 2: Observe for dangerous signals such as burning smell, smoke, liquid leakage, etc. If any → Immediately stop using and contact professional repair.
If not → Check each item in the self-test checklist above.
Step 3: Try a power cycle to see if it returns to normal.
If it returns to normal → You can continue using it, but it is recommended to record the frequency of the fault.
If it occurs repeatedly → If the same fault occurs more than 3 times, even if it can be operated temporarily, it should be arranged for repair.
