A fault that disappears between washes can still affect safety or reliability. The fact that the machine currently operates does not explain why it stopped or leaked previously.
Understanding this situation
A timeline is particularly useful: programme stage, load, warning and any supply event. Keep factual observations separate from guesses about which component is becoming unreliable, and avoid repeatedly running the appliance to make the problem happen on demand.
A useful next step
Report earlier tripping, burning or leakage even if today's display is normal. Leave the machine unused where those safety concerns remain unresolved. An engineer can assess the history and decide suitable testing instead of relying solely on whether a fault appears immediately.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.