A gas furnace that won’t keep running long enough to warm up your house and keep it warm isn’t of much use to you. If you start running into the problem of a furnace shutting off early, either after several minutes or less than a minute, you’ll want to know why and what you can do to fix it.
In some cases, a gas furnace shutting off early is because of a simple problem you can correct yourself. In other situations, you’ll need professional furnace repair in Yakima, WA. Below we’ll look at some of the common reasons for this furnace malfunction.
Why Won’t My Gas Furnace Stay On?
If your gas furnace turns on but shuts off after a few minutes, it is usually caused by a safety or airflow issue that requires HVAC repair service. Common causes include:
- Dirty air filter: Restricted airflow can overheat the system and trigger an automatic shutdown.
- Faulty flame sensor: If the sensor cannot detect a steady flame, it shuts off the gas supply.
- Malfunctioning limit switch: A failed safety switch may turn the furnace off too early.
- Thermostat problems: Incorrect settings or wiring issues can cause short cycling.
- Blocked vents or ducts: Poor airflow can force the system to overheat and shut down.
If replacing the filter or checking thermostat settings does not resolve the issue, a licensed HVAC technician can diagnose and repair the problem safely.
Continue Reading
Tags: Gas Furnaces, Heating System Repair, Yakima
Posted in Heating | Comments Off on Why Won’t My Gas Furnace Stay On?