Furnace Capacitor Replacement in San Antonio, Schertz, Converse, Floresville, Elmendorf, New Braunfels, and Surrounding Cities
Furnace capacitors regulate the power input delivered to the motors within the furnace. Furnace blower motor capacitors are the most common, but in some cases, a furnace may use an inducer motor capacitor.
These devices fall into two categories: run capacitors and start capacitors. Furnace capacitors belong to the run category, meaning they manage power to elements while actively running. Start capacitors regulate the power to elements that require substantial electricity to activate. They’re common in heat pumps and air conditioners.
How many capacitors a furnace uses depends on its make and model.
Without a functional capacitor, the furnace’s power input may fluctuate. Capacitors ensure a steady input and alleviate added pressure on the motor.
Indications of Furnace Capacitor Issues
Furnace capacitors rarely display signs of failure, so homeowners won’t notice there’s a problem right away. However, the following indirect symptoms indicate furnace capacitor issues:
Blower motor doesn’t work: A faulty capacitor may disrupt the circuit breakers and fail to provide power to the blower motor.
Erratic motor: A malfunctioning capacitor could slow the motor’s operation.
Clicking noises: If clicking noises occur while the furnace tries to activate, immediately call an HVAC professional.
Furnace produces a burning smell: A burning smell typically means there are electrical issues that require prompt, professional attention.
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