Evaporator Coil Bypass Factor – How to Test Your Air Conditioning Units

If you have ever suffered a short circuit in your air conditioner you know that the only way to repair it is to run a circuit breaker through your evaporator coil. But what if the fault was not the coil, but a component in the circuit board that controls the flow of air over the coil? This is the evaporator bypass factor.

The bypass factor is often hidden in plain sight and is the first sign that something is wrong with your air conditioner. On many occasions a simple change in the fan or an adjustment of the humidifier will solve the problem and allow the unit to run normally. However, a change in the humidity, temperature or airflow can be all that is needed to set the old problem into motion. For this reason, it is imperative that when you are testing your air conditioner that you measure the airflow into and out of the unit so that you can determine if any changes are necessary.

Remember that your power saver settings and filtration system also contribute to the evaporator bypass factor. You should test your filters regularly, especially if you have an HVAC system that does not require a lot of cool air to maintain proper humidity. To test your coils, get the filter basket out of the unit and open the air intake on the coil with a screwdriver. Once the air is released, take the clamped basket and check the position of the coil. If the air is not clear, add distilled water until the moisture is released from the coil.

This entry was posted in Uncategorized. Bookmark the permalink.