Final answer:
When sensor paste is allowed to accumulate on the sensors, it can cause inaccurate readings and result in sensor malfunction.
Step-by-step explanation:
When sensor paste is allowed to accumulate on the sensors, it can cause inaccurate readings and result in sensor malfunction. The accumulation of sensor paste forms a barrier between the sensors and the substances they are supposed to detect. This prevents the sensors from properly measuring the desired parameters, leading to unreliable data.