Here list of some most common faults of the magnetic flowmeter and the troubleshooting.
| 1. No display | No power | Apply correct power |
| Fuse blown | Replace a fuse with the same parameter | |
| The contrast of LCD is too low | Increase the contrast | |
| 2. Empty Pipe alarm | Fluid is not full filled the pipe | Increase the flow rate |
| Electrode was polluted | Clean the electrode if the voltage of DS1 and DS2>1V | |
| The fluid’s conductivity is too small | If connect three terminals SIG 1, SIG 2, SGND and the alarm disappears, which means the fluid’s conductivity is small. Replace another kind of flowmeter |
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| 3. Flow rate indication is unstable | Grounding issue | Make sure the meter is properly grounded to a good earth ground |
| Air | Make sure the fluid does not contain air bubbles | |
| Converter location outside electrical interference |
Make sure the converter is not too close to sources of electrical interference |