Cool Your Future: Ace the 2026 ETI Air Conditioning Repair Certification Test!

Question: 1 / 400

What can be a consequence of not maintaining the evaporator coil?

Increased noise levels

Reduced cooling efficiency

When the evaporator coil is not properly maintained, it can lead to reduced cooling efficiency in the air conditioning system. The evaporator coil is responsible for absorbing heat from the indoor air, and when it becomes dirty or blocked, its ability to transfer heat diminishes. This reduction in heat exchange means that the air conditioning system has to work harder to achieve the desired indoor temperature, often resulting in less effective cooling.

Improper maintenance can cause issues such as ice build-up on the coil, which further impairs its function. As the efficiency decreases, the system struggles to keep the space cool, leading to an increase in operation duration and a drop in overall comfort levels. Regular cleaning and maintenance of the evaporator coil ensure that the system operates at optimal levels, promoting better cooling performance and indoor air quality.

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Higher electricity bills

Shorter lifespan of the thermostat

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