A good gas furnace repairing guide assists you in identifying what is wrong with the furnace based upon its symptoms. That's what we do here with clear, straightforward info.
Troubleshooting Common Gas Furnace Issues
Every year, countless Calgary homeowners ask, "What's wrong with my gas heating system?" If you remain in that situation, this guide will equip you with details prior to you call a heating system company. Knowledge is defense against being made the most of-- though many repair work specialists have sound principles.
Note: This guide covers the most common problems, particularly those most house owners can easily talk to no tools or basic tools such as screwdrivers and a multimeter.
1. The Heating System Will Not Start
If nothing happens when the thermostat is set above the house's present temperature, the most likely causes are these:
- The heater switch (located on or near the heater, appears like a common light switch) is turned off and just needs to be switched on, though the heater might have a short delay prior to starting
- The circuit breaker is off, and if the circuit continues to trip after it is turned back on, there is likely an electrical wiring brief in the furnace
- The thermostat isn't set to "heat," which is simple to inspect and remedy
- The thermostat isn't working, and this is sometimes caused by a wire coming loose, so check the circuitry connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and must be changed, an issue that can be identified using an electrical multimeter that shows if a circuit is total
- The filter is filthy and should be replaced or cleaned up, a problem that is particularly true on newer heaters that are geared up to close down if the filter isn't allowing appropriate air flow, a condition that can cause severe mechanical failure
- The heating system's primary circuit board/control board is bad, an issue that can be identified by a HVAC specialist is absolutely nothing else fixes the concern
2. Heating System Blowing Cold Air
If the heating system will not produce heat, you can check to see if it is getting power by moving the fan switch from the "Car" position to the "On" position. If the fan begins, then the heating system is getting power. The likely concerns then are:
- The gas is switched off, so examine the gas cock near the heater to ensure it is parallel to the gas line
- The gas control valve isn't opening and need to be changed
- The ignitor is failing and must be changed
- The draft motor isn't functioning or the fresh-air consumption is blocked, perhaps by snow or particles, and needs 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 heater and out the exhaust stack. If it starts and then the furnace shuts down, the cause might be:
- The motor or the board that manages it has stopped working and should be replaced
- A blocked air consumption or obstructed exhaust chimney (snow, debris and bird's nests prevail causes) must be cleared
- Among the problems gone over above with gas, gas valve and ignitor should be attended to
4. The Draft Motor Will Not 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 repairing draft motor concerns and what is triggering them.
5. The Flame Starts, but the Furnace Shuts Down
If the burner starts making heat however 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 replacing it is a longer-lasting fix.
6. The Blower Will Not Shut Off
If the blower motor runs all the time, there are three typical concerns:
- The fan turn on the thermostat is set to "on" instead of "car".
- Relays in the control panel are stuck in the closed position, so the blower is getting a constant supply of electrical power, and the control panel must be replaced.
- The thermostat likewise has contacts that manage power to the heating system, emergency furnace repair and they can be worn, so the thermostat needs to be changed.
7. Why Does the Heater Keep Shutting Down?
If your heating system burner lights but the heater quickly shuts off, there are a couple of common concerns that may cause this:.
- The heating system filter is dirty and need to be cleaned up or replaced.
- The flame sensor isn't working and should be replaced.
- The thermostat is stopping working.
- While these are common, there are several other possible causes best detected by a furnace specialist. This video provides thorough coverage to the issue of furnace short-cycling.
8. The Furnace Runs but Can't Keep your house Warm.
If your heater is correctly sized for your home, then it needs to keep your home warm even in extreme cold. If it runs continuously but isn't offering enough heat, the likely causes are:.
- An unclean filter that should be washed (only if the washable type) or replaced.
- The filter is the wrong type for your heating system and limits air flow, so ought to be changed.
- The filter is set up backwards, a problem that can be examined by looking for the arrows on the filter frame that reveal correct installation direction with the flow of air.
- Duct are dripping, often producing telltale furnace installation near me whistling sounds, and it is time to have them sealed as recommended by Energy Star.
9. The Heater Makes Loud Noises.
A loud furnace is most often the result of:.
- The furnace being a single-stage model that operates 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 replaced.
- A leakage in the heating system cabinet, sheet metal plenum or ductwork near the heater that must be tightened up.
- A filthy filter, which can also trigger whistling.
10. The Furnace Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your heating system, and if it leakages onto the floor, the problem is probably a clogged drain pan or drain line.
11. The Air Coming from the Furnace Smells Bad.
Foul odors from the heater are normally triggered by:.
- An extremely filthy filter that need to be cleaned, if washable, or replaced.
- A dead rodent or bird someplace in the system, typically a task for a professional heater technician.
12. The CO Display Going Off.
A carbon monoxide alarm ought to be taken seriously. Turn the heater off at the thermostat. Do not go into the space where the heating system is located. Open doors and windows, and go outside. Call 911 from a mobile phone outside your home.
How to Select a Gas Heater Repair Specialist.
Some house owners pick the least expensive repair service in Calgary, and the results are normally poor. Inexpensive services are either simply starting, so do not have experience or they have a bad track record, so must offer cheap prices to get tasks.
On the other hand, some services are overpriced. The best way to discover quality heater repair work at a reasonable rate is to get quotes from several of the top furnace repair companies in Calgary. Meet each, learn about their history and the experience of the professionals that will do the work. Select an experienced heating system repair work specialist with affordable rates.