What should you do if you find a temperature split of 29°F in cooling mode?

A temperature split of 29°F in cooling mode typically indicates an inefficient cooling operation, as a standard temperature split usually falls between 18°F to 22°F. When the temperature split is too high, it suggests that the system is not effectively transferring heat from the indoor space to the refrigerant.

Increasing the indoor fan speed can enhance air circulation across the evaporator coil. This allows more indoor air to interact with the coil, improving the heat exchange process and thus enabling the refrigerant to absorb more heat from the indoor air. It helps to lower the temperature of the air being blown into the space, which can help to achieve a more desirable temperature split.

In contrast, decreasing the indoor fan speed may worsen the temperature split by limiting airflow, while adjusting the thermostat or checking outdoor temperature settings will not directly address the immediate issue of the high temperature split. Therefore, increasing the indoor fan speed is the most effective approach to improving system performance in this scenario.