Certified Biomedical Equipment Technician (CBET) Practice Exam 2025 - Free Biomedical Equipment Technician Practice Questions and Study Guide

The situation described involves a water bath that has power, as indicated by the power light being on, but is not heating. This scenario points to a failure somewhere in the heating component of the device rather than an issue with power supply or general settings.

In this case, a defective heating element is the most likely cause. The heating element is responsible for generating heat to warm the water in the bath. If the element is faulty—whether due to burnout, damage, or manufacturing defects—it will not perform its function of heating the water, despite the device receiving power.

In contrast, a defective power cord would typically result in no power being delivered to the unit at all, so the power indicator light would be off. Similarly, if the thermostat were set too high, the unit might still heat, leading to a different type of malfunction or perhaps cycling issues, but the heating would not be completely absent. An insufficient water level could potentially affect heating performance as well, but in a properly functioning water bath, a safety feature usually prevents operation if the water level is too low, and again, it would not account for the power indicator being on.

Therefore, identifying the heating element as the defective component aligns perfectly with the symptoms described, making it the most