Heat Pump

Why Does My Heat Pump Keeps Shutting On and Off?

July 26, 2023

Los Banos, CA, residents rely on their heat pumps to provide reliable heating and cooling throughout the year. However, encountering a heat pump that repeatedly cycles on and off can be frustrating and concerning. These are some possible reasons behind this issue.

Thermostat Malfunction

A malfunctioning thermostat can cause a heat pump to cycle frequently. If the thermostat isn’t accurately detecting the temperature, it may cause the system to turn on and off repeatedly.

Refrigerant Leaks

Low refrigerant levels due to leaks can cause a heat pump to cycle frequently. Insufficient refrigerant disrupts the heat transfer process, making the system less efficient and prompting it to turn on and off more often than necessary. Don’t try to fix this issue yourself; instead, leave refrigerant and other intricate maintenance to your local HVAC professionals.

Improper Sizing

An improperly sized heat pump can result in frequent cycling. If the system is too large for the space intended to heat or cool, it may quickly reach the set temperature and shut off. Conversely, an undersized system may struggle to meet the desired temperature, leading to continuous cycling.

Defective Components

Faulty components within the system can cause it to short cycle. Issues with the fan motor, sensors, relays or control board can disrupt the heat pump’s operation, leading to frequent shutdowns and restarts.

Airflow Issues

Restricted or inadequate airflow can trigger the system to cycle frequently. Clogged air filters, obstructed vents or blocked outdoor units can disrupt the normal airflow, leading to overheating and causing the system to shut down and restart.

Experiencing frequent cycling of your heat pump in Los Banos, CA, can indicate underlying issues that require attention. Contact us at CEN-CAL AIR Heating and Cooling, to diagnose and resolve your heat pump problems and restore optimal performance.

Image provided by iStock

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