Ways to Troubleshoot a Furnace Gas Valve

If you’re experiencing problems with your furnace, it’s crucial to immediately identify the faulty component and seek professional help. One crucial part of the furnace system is the gas valve, which is vital in regulating the combustion process. Without a properly functioning gas valve, your furnace may not be able to produce the heat your home needs to stay warm and comfortable.

To avoid further damage to your furnace and ensure your safety, it’s best to leave gas valve troubleshooting and repair to professionals. Alief Ultra Mechanical is a trusted and reliable furnace services provider in Houston, TX, with a team of skilled technicians who can accurately diagnose and fix any issues with your gas valve. Contact us today to schedule an appointment and get your furnace back in top condition.

Signs Your Furnace May Need Repair

If you reside in Houston, Texas, it is time to schedule your furnace service as soon as any of these signs appear:

  • You have difficulty turning the furnace on

  • Your furnace is not generating adequate heat

  • A loud abnormal noise emanates from your furnace

  • Your furnace is not heating your home uniformly

  • Your utility bill has risen unexpectedly

Troubleshooting The Gas Valve

To determine the cause of your furnace malfunction, check the gas valve to see if your furnace has stopped producing heat or has shut down. Here are some steps you can take to determine if you have a faulty gas valve:

  • Check if the motor is running.

  • Check all the wires leading to the gas valve. They need to be replaced if broken, frayed, or burnt. Wires are usually damaged in older furnaces.

  • Check the resistance of the coil at the gas valve using a multimeter. If the reading shows OL, then it means the coil is broken.

  • Check if the gas valve is correctly adjusted according to your furnace. At times, the technician performing the installation leaves the valve at the default setting, which can cause the ignition chamber to receive too much or too little gas, causing your system to malfunction.

  • Check the burners and make sure that they are not clogged.

  • Check if the flame sensors are working correctly.

  • Using a multimeter, check if the pressure drops across the inlet and outlet.

  • Check the evaporator coil and the blower motor. The system will shut down if they do not work correctly due to a safe trip.

  • Inspect the ductwork thoroughly and ensure it is not clogged, especially the return duct.

Although all the above components work correctly, a faulty gas valve may still be the issue. Replacing the gas valve on your own is possible but not recommended, as it could result in unintentional harm to the furnace or yourself. If the gas valve is defective, it is best to seek assistance from a reliable professional for heat pump services in Houston.

Alief Ultra Mechanical is a trusted provider of heating and cooling solutions with over 30 years of experience. Our team of skilled and knowledgeable technicians offers comprehensive furnace services. Contact us today to schedule your HVAC repair in Houston and obtain a free estimate!

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