A great gas furnace fixing guide helps you in identifying what is wrong with the heating system based on its signs. That's what we do here with clear, straightforward details.
Troubleshooting Common Gas Furnace Problems
Every year, thousands of Calgary house owners ask, "What's wrong with my gas heating system?" If you remain in that scenario, this guide will arm you with info prior to you call a heater company. Understanding is security versus being taken advantage of-- though most repair work specialists have sound principles.
Keep in mind: This guide covers the most typical problems, particularly those most house owners can easily consult no tools or standard tools such as screwdrivers and a multimeter.
1. The Heater Won't Start
If absolutely nothing happens when the thermostat is set above the house's current temperature level, the most likely causes are these:
- The furnace switch (situated on or near the heating system, appears like a common light switch) is switched off and merely needs to be turned on, though the heating system might have a brief hold-up prior to starting
- The breaker is off, and if the circuit continues to trip after it is turned back on, there is likely a wiring short in the heating system
- The thermostat isn't set to "heat," which is easy to inspect and treat
- The thermostat isn't working, and this is often triggered by a wire coming loose, so check the circuitry connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and must be changed, a concern that can be identified utilizing an electrical multimeter that reveals if a circuit is total
- The filter is filthy and need to be changed or cleaned up, a concern that is specifically real on newer heaters that are geared up to shut down if the filter isn't permitting adequate air flow, a condition that can cause severe mechanical failure
- The furnace's primary circuit board/control board is bad, a problem that can be diagnosed by a HEATING AND COOLING professional is absolutely nothing else resolves the concern
2. Furnace Blowing Cold Air
If the heating system will not produce heat, you can inspect to see if it is getting power by moving the fan switch from the "Vehicle" position to the "On" position. If the fan begins, then the heater is getting power. The most likely concerns then are:
- The gas is switched off, so check the gas cock near the heating system to make sure it is parallel to the gas line
- The gas control valve isn't opening and should be changed
- The ignitor is failing and must be changed
- The draft motor isn't functioning or the fresh-air consumption is obstructed, perhaps by snow or particles, and requires to be cleared
3. The Draft Motor Runs, Heating System Will Not Start
The draft motor is also called the inducer motor. It pulls hot combustion gases through the heating system and out the exhaust stack. If it starts and after that the furnace shuts down, the cause might be:
- The motor or the board that manages it has actually failed and should be changed
- A blocked air intake or obstructed exhaust chimney (snow, particles and bird's nests are common causes) should be cleared
- One of the problems talked about above with gas, gas valve and ignitor must 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 fixing draft motor problems and what is causing them.
5. The Flame Starts, but the Furnace Shuts Down
If the burner begins making heat but quickly turns off without warming your home, the flame sensing unit isn't working. If the sensor has corrosion on it, sanding it may work, though changing it is a longer-lasting fix.
6. The Blower Won't Turn Off
If the blower motor runs all the time, there are 3 typical 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 board need to be replaced.
- The thermostat also has contacts that control power to the heater, and they can be used, so the thermostat needs to be replaced.
7. Why Does the Heating System Keep Shutting Off?
If your heating system burner lights but the heater quickly shuts off, there are a couple of typical issues that might trigger this:.
- The heater filter is dirty and need to be cleaned up or replaced.
- The flame sensing unit isn't working and need to be replaced.
- The thermostat is stopping working.
- While these prevail, there are a number of other prospective causes best diagnosed by a heater technician. This video offers in-depth coverage to the issue of furnace short-cycling.
8. The Heating System Runs however Can't Keep your house Warm.
If your heater is appropriately sized for your home, then it should emergency furnace repair calgary keep your home warm even in severe cold. If it runs continuously but isn't offering sufficient heat, the likely causes are:.
- A filthy filter that should be washed (only if the washable type) or replaced.
- The filter is the incorrect type for your heater and restricts air flow, so must be changed.
- The filter is set up in reverse, a concern that can be checked by trying to find the arrows on the filter frame that reveal correct setup instructions with the flow of air.
- Air ducts are dripping, often producing obvious whistling sounds, and it is time to have them sealed as advised by Energy Star.
9. The Heater Makes Loud 24 hour furnace repair calgary Noises.
A loud heater is most often the result of:.
- The furnace being a single-stage design that runs on high capacity all the time, so it's going to be loud.
- A bad bearing in the draft motor or the blower motor that should be replaced.
- A leak in the heater cabinet, sheet metal plenum or ductwork near the heating system that need to be tightened up.
- A dirty filter, which can also cause whistling.
10. The Heating System Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your furnace, and if it leaks onto the floor, the problem is most likely a clogged up drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the furnace are normally triggered by:.
- A very filthy filter that need to be cleaned, if washable, or changed.
- A dead rodent or bird someplace in the system, typically a task for an expert heater specialist.
12. The CO Screen Going Off.
A carbon monoxide alarm must be taken seriously. Turn the heating system off at the thermostat. Do not go into the room where the heating system lies. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.
How to Pick a Gas Heating System Repair Work Specialist.
Some house owners pick the most inexpensive repair service in Calgary, and the outcomes are generally bad. Cheap services are either simply getting going, so lack experience or they have a bad track record, so should give low-cost prices to get jobs.
On the other hand, some services are overpriced. The very best way to find quality furnace repair work at a reasonable cost is to get price quotes from several of the leading furnace repair companies in Calgary. Consult with each, find out about their history and the experience of the professionals that will do the work. Select an experienced heating system repair work professional with affordable rates.