Your furnace is a central component of your comfort system. When it fails, you need a furnace repair company that will get the job done right.
The problem can be difficult to pinpoint, since many different things can go wrong with the heating system. Start by assessing the energy supply to the furnace. For more detailed information, click on furnace repair Coquitlam.
Heat Exchanger
The heat exchanger is the metal container inside a furnace that collects hot combustion gas from the burners and air from the blower. Its metal walls transfer heat into the ventilation system before allowing exhaust gases to escape through a flue. A cracked exchanger is a serious safety hazard and should be replaced as soon as possible.
Furnace repairs that include a new heat exchanger are expensive. However, they are often less costly than a replacement furnace installation that would be necessary if you wait to replace your old one.
Many HVAC professionals recommend annual inspections and maintenance to prevent the traditional causes of heat exchanger cracks. They will look for these issues and address them before they become dangerous, helping you avoid costly repair bills.
Limit Switch
The limit switch is another crucial safety feature that shuts off the gas valve and fan when a furnace reaches unsafe temperatures. This protects the system from overheating and prevents carbon monoxide leakage in your home.
If your limit switch trips repeatedly, it may require a simple adjustment. Shut off the power to the furnace and use a multimeter to test the continuity of the switch. If it has continuity, replace the old switch with a new one by connecting the wires and terminals as indicated in the replacement instructions.
Mechanical problems such as a blower motor malfunction or improper furnace size can also cause overheating and trigger the limit switch. Regular cleaning, maintenance, and air filter replacement can help mitigate these issues.
Thermostat
A poorly functioning thermostat is one of the most common causes of furnace problems. Symptoms of a malfunction include short run times, inconsistent heat distribution in the home and strange odors like musty or gas-like smells.
Whether you need a heater examination, furnace repair service or a new furnace installation, our experts will help you get back to your comfort zone swiftly and efficiently!
Even the best energy efficient furnaces require periodic repairs. However, with regular HVAC maintenance in Coquitlam from professional technicians you can extend the lifespan of your equipment and enjoy more comfortable indoor temperatures without expensive replacement costs.
Gas Valve
The gas valve regulates the flow of gas into your furnace and ensures that the right amount of pressure is maintained. A faulty gas valve can lead to inefficiencies and safety hazards.
Most homes have a street-side gas valve (near the gas meter) and a house-side main shutoff valve, where you can turn off the flow of gas into your home. It’s important to know which one you have, so that in the event of an emergency you can shut off the gas immediately.
Testing and replacing a gas valve is not something that you should try on your own. It can be dangerous and, depending on where you live, it might even be illegal. Also, doing this job incorrectly can void your warranty.
Blower
If your furnace has a blower, this part pushes heated air into the venting system (Ducts). A faulty blower motor can cause a number of problems including a lack of heating and high energy bills.
The blower motor can also fail due to normal wear and tear. If you have noticed your heater working harder than usual, it could be a sign of a blower motor that is overheating.
Other signs of a failing blower motor include pools of water or strange noises. A clunking sound often means the blower belt is wearing out while a scraping noise could be a sign of worn bearings. An HVAC technician will be able to examine your unit and determine the best course of action.