An excellent gas heater repairing guide helps you in determining what is wrong with the furnace based upon its symptoms. That's what we do here with clear, simple information.
Troubleshooting Common Gas Furnace Issues
Every year, countless Calgary homeowners ask, "What's wrong with my gas furnace?" If you're in that circumstance, this guide will equip you with information prior to you call a furnace business. Knowledge is security against being benefited from-- though a lot of repair specialists have sound principles.
Keep in mind: This guide covers the most typical problems, specifically those most homeowners can quickly contact no tools or fundamental tools such as screwdrivers and a multimeter.
1. The Heater Will Not Start
If nothing occurs when the thermostat is set above the house's existing temperature level, the most likely causes are these:
- The heating system switch (situated on or near the furnace, looks like a typical light switch) is switched off and just needs to be turned on, though the heating system might have a brief delay before beginning
- The breaker is off, and if the circuit continues to trip after it is turned back on, there is likely a circuitry brief in the heating system
- The thermostat isn't set to "heat," which is easy to inspect and correct
- The thermostat isn't working, and this is often caused by a wire coming loose, so inspect the wiring connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and should be changed, a problem that can be detected using an electrical multimeter that reveals if a circuit is total
- The filter is unclean and should be changed or cleaned, a problem that is especially true on more recent furnaces that are geared up to shut down if the filter isn't permitting sufficient air circulation, a condition that can cause major mechanical failure
- The heater's main circuit board/control board is bad, an issue that can be diagnosed by a HVAC professional is nothing else resolves the issue
2. Heater Blowing Cold Air
If the heating system will not produce heat, you can examine to hvac company calgary see if it is getting power by moving the fan switch from the "Vehicle" position to the "On" position. If the fan comes on, then the heating system is getting power. The likely problems then are:
- The gas is turned off, so check the gas cock near the heater to make certain it is parallel to the gas line
- The gas control valve isn't opening and must be changed
- The ignitor is stopping working and should be replaced
- The draft motor isn't operating or the fresh-air consumption is obstructed, perhaps by snow or debris, and needs cool heat to be cleared
3. The Draft Motor Runs, Heater Won't Start
The draft motor is also called the inducer motor. It pulls hot combustion gases through the heater and out the exhaust stack. If it starts and after that the heating system shuts down, the cause might be:
- The motor or the board that manages it has actually stopped working and should be changed
- A blocked air intake or obstructed exhaust chimney (snow, particles and bird's nests prevail causes) should be cleared
- Among the issues discussed above with gas, gas valve and ignitor should be resolved
4. The Draft Motor Won't Start
The problem, in this case, is either that the motor is bad or the capacitor that supports it is bad. This video will help you in troubleshooting draft motor problems and what is causing them.
5. The Flame Starts, but the Heating system Shuts Down
If the burner begins making heat but soon turns off without warming your home, the flame sensor isn't working. If the sensor has deterioration on it, sanding it may work, though changing it is a longer-lasting fix.
6. The Blower Will Not Turn Off
If the blower motor runs all the time, there are three common concerns:
- The fan switch on the thermostat is set to "on" instead of "automobile".
- Relays in the control panel are stuck in the closed position, so the blower is getting a continuous supply of electricity, and the control panel need to be replaced.
- The thermostat likewise has contacts that control power to the furnace, and they can be worn, so the thermostat needs to be changed.
7. Why Does the Heater Keep Turning Off?
If your heater burner lights but the furnace soon shuts off, there are a couple of typical issues that might cause this:.
- The heating system filter is filthy and ought to be cleaned up or replaced.
- The flame sensing unit isn't working and ought to be replaced.
- The thermostat is failing.
- While these are common, there are a number of other potential causes finest diagnosed by a furnace specialist. This video gives thorough protection to the problem of heater short-cycling.
8. The Furnace Runs but Can't Keep the House Warm.
If your heating system is properly sized for your house, then it ought to keep your home warm even in extreme cold. If it runs continuously but isn't offering adequate heat, the most likely causes are:.
- A filthy filter that need to be washed (only if the washable type) or changed.
- The filter is the wrong type for your heater and restricts airflow, so should be changed.
- The filter is installed backwards, an issue that can be examined by searching for the arrows on the filter frame that show appropriate setup instructions with the flow of air.
- Duct are leaking, sometimes producing telltale whistling sounds, and it is time to have them sealed as advised by Energy Star.
9. The Heater Makes Loud Noises.
A noisy heating system is most often the outcome of:.
- The heater being a single-stage design 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 must be changed.
- A leak in the furnace cabinet, sheet metal plenum or ductwork near the furnace that need to be tightened.
- An unclean filter, which can also trigger whistling.
10. The Heating System Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your heating system, and if it leakages onto the flooring, the issue is probably a clogged drain pan or drain line.
11. The Air Coming from the Heating System Smells Bad.
Foul odors from the heating system are normally caused by:.
- A very unclean filter that ought to be cleaned, if washable, or changed.
- A dead rodent or bird someplace in the system, usually a job for an expert heating system technician.
12. The CO Monitor Going Off.
A carbon monoxide alarm must be taken seriously. Turn the furnace off at the thermostat. Do not go into the room where the heater is located. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.
How to Choose a Gas Heating System Repair Professional.
Some homeowners choose the cheapest repair work service in Calgary, and the results are typically poor. Low-cost services are either simply starting, so do not have experience or they have a bad reputation, so must provide low-cost pricing to get jobs.
On the other hand, some services are overpriced. The best way to find quality furnace repair work at a reasonable rate is to get price quotes from several of the leading furnace repair companies in Calgary. Consult with each, learn more about their history and the experience of the specialists that will do the work. Select a skilled furnace repair specialist with sensible rates.