A great gas furnace fixing guide helps you in identifying what is wrong with the heater based on its signs. That's what we do here with clear, uncomplicated information.
Fixing Common Gas Furnace Issues
Every year, thousands of Calgary homeowners ask, "What's wrong with my gas furnace?" If you remain in that situation, this guide will arm you with details before you call a heater company. Understanding is security versus being taken advantage of-- though the majority of repair experts have sound ethics.
Note: This guide covers the most common problems, particularly those most property owners can easily consult no tools or basic tools such as screwdrivers and a multimeter.
1. The Furnace Won't Start
If nothing happens when the thermostat is set above the home's existing temperature, the most likely causes are these:
- The heater switch (situated on or near the furnace, appears like a typical light switch) is turned off and simply needs to be switched on, though the heater may have a short delay before beginning
- The circuit breaker is off, and if the circuit continues to trip after it is turned back on, there is likely an electrical wiring short in the heating system
- The thermostat isn't set to "heat," which is simple to inspect and treat
- The thermostat isn't working, and this is often brought on by a wire coming loose, so inspect the circuitry connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and should be changed, a problem that can be detected utilizing an electrical multimeter that shows if a circuit is total
- The filter is filthy and should be replaced or cleaned, an issue that is especially real on newer furnace installation near me heaters that are geared up to shut down if the filter isn't allowing appropriate air flow, a condition that can trigger serious mechanical failure
- The heater's main circuit board/control board is bad, an issue that can be diagnosed by a HEATING AND COOLING service technician is absolutely nothing else fixes the problem
2. Furnace Blowing Cold Air
If the furnace will not produce heat, you can examine to see if it is getting power by moving the fan switch from the "Auto" position to the "On" position. If the fan begins, then the heating system is getting power. The most likely problems then are:
- The gas is turned off, so examine the gas cock near the heater to make sure it is parallel to the gas line
- The gas control valve isn't opening and should be changed
- The ignitor is stopping working and must be replaced
- The draft motor isn't operating or the fresh-air intake is blocked, maybe by snow or particles, and requires to be cleared
3. The Draft Motor Runs, Heater Will Not Start
The draft motor is likewise called the inducer motor. It pulls hot combustion gases through the furnace and out the exhaust stack. If it starts and after that the heater shuts down, the cause might be:
- The motor or the board that controls it has actually stopped working and must be changed
- An obstructed air consumption or obstructed exhaust chimney (snow, debris and bird's nests are common causes) must be cleared
- One of the concerns gone over above with gas, gas valve and ignitor must be resolved
4. The Draft Motor Won't Start
The issue, in this case, is either that the motor is bad or the capacitor that supports it is bad. This video will help you in fixing draft motor issues and what is triggering them.
5. The Flame Begins, but the Furnace Shuts Down
If the burner starts making heat but soon shuts down without warming your home, the flame sensor isn't working. If the sensing unit has deterioration on it, sanding it may work, though changing it is a longer-lasting fix.
6. The Blower Won't Shut Down
If the blower motor runs all the time, there are three common concerns:
- The fan turn on the thermostat is set to "on" rather than "auto".
- Relays in the control panel are stuck in the closed position, so the blower is getting a continuous supply of electrical energy, and the control panel need to be changed.
- The thermostat also has contacts that manage power to the furnace, and they can be used, so the thermostat must be replaced.
7. Why Does the Furnace Keep Turning Off?
If your heater burner lights but the heating system soon shuts off, there are a couple of typical problems that might cause this:.
- The heater filter is unclean and ought to be cleaned or replaced.
- The flame furnace service sensor isn't working and must be replaced.
- The thermostat is stopping working.
- While these prevail, there are numerous other possible causes best diagnosed by a heating system technician. This video provides thorough coverage to the problem of furnace short-cycling.
8. The Heater Runs but Can't Keep your house Warm.
If your heater is effectively sized for your home, then it ought to keep your house warm even in extreme cold. If it runs constantly but isn't providing sufficient heat, the likely causes are:.
- An unclean filter that should be cleaned (just if the washable type) or replaced.
- The filter is the incorrect type for your heater and restricts airflow, so need to be replaced.
- The filter is installed backwards, a concern that can be examined by searching for the arrows on the filter frame that reveal proper installation direction with the flow of air.
- Duct are leaking, in some cases producing telltale whistling sounds, and it is time to have them sealed as recommended by Energy Star.
9. The Heating System Makes Loud Noises.
A noisy heating system is frequently the outcome of:.
- The heating system being a single-stage model that works on high capability all the time, so it's going to be loud.
- A bad bearing in the draft motor or the blower motor that need to be replaced.
- A leak in the furnace cabinet, sheet metal plenum or ductwork near the heating system that should be tightened up.
- A dirty filter, which can likewise trigger whistling.
10. The Heater Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your heater, and if it leakages onto the floor, the concern is most likely a blocked drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the heater are generally caused by:.
- An extremely dirty filter that must be washed, if washable, or changed.
- A dead rodent or bird someplace in the system, generally a task for an expert heater technician.
12. The CO Monitor Going Off.
A carbon monoxide gas alarm need to be taken seriously. Turn the furnace off at the thermostat. Do not enter into the space where the furnace is located. Open doors and windows, and go outside. Call 911 from a cellular phone outside your home.
How to Choose a Gas Heater Repair Work Professional.
Some homeowners choose the most affordable repair service in Calgary, and the results are normally bad. Inexpensive services are either simply getting going, so do not have experience or they have a bad reputation, so should give cheap rates to get tasks.
On the other hand, some services are overpriced. The very best way to discover quality heating system repair work at a reasonable cost is to get price quotes from several of the leading heating system repair companies in Calgary. Meet with each, learn more about their history and the experience of the service technicians that will do the work. Select a skilled heater repair specialist with affordable rates.