Who to call · Fresno
Furnace short-cycling on and off — Fresno, California
A furnace that starts, runs for only a few minutes, shuts off, and restarts repeatedly is short-cycling. This wastes energy, strains the blower motor and heat exchanger, and leaves the house underheated. Common causes are a dirty air filter restricting airflow, an overheating limit switch tripping, a malfunctioning flame sensor, a thermostat placed near a heat source, or an oversized unit. An HVAC technician can diagnose the trigger, clean or replace the flame sensor, check the heat exchanger, and ensure proper airflow.
Who to call
For this problem in Fresno, call a: Klimaattechnicus
Vind een Klimaattechnicus in FresnoSymptoms to look for
- Furnace turns on and off every few minutes without reaching the set temperature
- Blower fan starts and stops repeatedly in quick succession
- House stays cold despite the furnace running frequently
- Yellow warning light blinking on the furnace control board
- Unusual clicking or igniting sounds occurring repeatedly
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