CHAPTER 2 TROUBLESHOOTING
MB23 and MB25 Service Manual
2-1
Ohaus Corporation www.ohaus.com
2.1 TROUBLESHOOTING
This section of the manual provides a standard troubleshooting methodology. Follow all
directions step by step. Make certain that the work area is clean. Handle components with
care. Use an Electro-Static Device.
2.1.1 General Procedures for Troubleshooting
1. Do the most obvious, user-level remedies.
2. Check that internal parts are clean and free of debris.
3. Consult the Error Code Table (Table 2-1) for solutions to specific codes.
4. Use the Problem Solver (Table 2-2) to locate the symptom.
Follow the suggested remedies in the order they appear.
5.
Visual Check:
Examine the Load Cell for signs of bending, twisting or corrosion.
– Clean the unit before evaluating any mechanical problems.
Remove any debris inside the Housing.
– Examine the Housing for damage, bent parts or signs of physical abuse.
Replace all damaged parts. See Chapter 5 for parts list.
– Check the cables leading to the Load Cell for cuts, abrasions or other signs
of damage.
– Examine the Load Cell for corrosion due to high humidity or exposure to
chemicals. A Load Cell that is even slightly bent or corroded should be replaced.
– Check the heating unit for corrosion or other damage.
If a problem arises that is not covered in this manual, contact your local Ohaus office.