An excellent gas furnace repairing guide assists you in identifying what is wrong with the heater based on its signs. That's what we do here with clear, straightforward details.
Troubleshooting Common Gas Heater Problems
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 before you call a furnace company. Understanding is protection versus being taken advantage of-- though the majority of repair experts have sound principles.
Note: This guide covers the most common problems, specifically those most property owners can quickly contact no tools or standard tools such as screwdrivers and a multimeter.
1. The Furnace Will Not Start
If absolutely nothing takes place when the thermostat is set above the home's present temperature, the most likely causes are these:
- The heater switch (situated on or near the heater, looks like a typical light switch) is shut off and just requires to be switched on, though the heater may have a short hold-up prior to beginning
- The breaker is off, and if the circuit continues to journey after it is turned back on, there is likely an electrical wiring short in the furnace
- The thermostat isn't set to "heat," which is simple to examine and treat
- furnace company calgary The thermostat isn't working, and this is often caused by a wire coming loose, so examine the wiring connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and need to be changed, an issue that can be diagnosed using an electrical multimeter that reveals if a circuit is total
- The filter is unclean and need to be replaced or cleaned up, an issue that is particularly true on newer heaters that are geared up to shut down if the filter isn't allowing appropriate air circulation, a condition that can cause serious mechanical failure
- The furnace's main circuit board/control board is bad, an issue that can be identified by a HVAC service technician is nothing else solves the problem
2. Furnace Blowing Cold Air
If the furnace won't produce heat, you can check to see if it is getting power by moving the fan switch from the "Automobile" 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 inspect the gas cock near the heater to make certain 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 replaced
- The draft motor isn't operating or the fresh-air consumption is blocked, maybe by snow or debris, and requires 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 heating system and out the exhaust stack. If it begins and then the heater closes down, the cause might be:
- The motor or the board that controls it has failed and need to be replaced
- A blocked air consumption or obstructed exhaust chimney (snow, debris and bird's nests are common causes) need to be cleared
- Among the concerns talked about above with gas, gas valve and ignitor must 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 assist you in repairing draft motor problems and what is triggering them.
5. The Flame Begins, but the Heater Shuts Down
If the burner starts making heat however quickly shuts down without warming your home, the flame sensing unit isn't working. If the sensing unit has deterioration on it, sanding it may work, though changing it is a longer-lasting repair.
6. The Blower Won't Turn Off
If the blower motor runs all the time, there are 3 common problems:
- The fan switch 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 continuous supply of electrical energy, and the control panel need to be replaced.
- The thermostat likewise has contacts that control power to the heating system, and they can be worn, so the thermostat should be changed.
7. Why Does the Furnace Keep Shutting Down?
If your furnace burner lights however the heating system soon shuts down, there are a couple of common concerns that may cause this:.
- The heater filter is filthy and must be cleaned or changed.
- The flame sensor isn't working and ought to be replaced.
- The thermostat is failing.
- While these prevail, there are a number of other potential causes finest diagnosed by a heating system specialist. This video provides thorough coverage to the issue of furnace short-cycling.
8. The Heater Runs but Can't Keep the House Warm.
If your heating system is properly sized for your house, then it should keep your home warm even in severe cold. If it runs constantly but isn't offering adequate heat, the most likely causes are:.
- A dirty filter that need to be washed (only if the washable type) or replaced.
- The filter is the incorrect type for your furnace and restricts air flow, so ought to be changed.
- The filter is installed backwards, a concern that can be inspected by looking for the arrows on the filter frame that show appropriate installation direction with the circulation of air.
- Air ducts are dripping, often producing obvious whistling sounds, and it is time to have them sealed as suggested by Energy Star.
9. The Heater Makes Loud Noises.
A noisy furnace is usually the outcome of:.
- The heater being a single-stage design 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 changed.
- A leak in the furnace cabinet, sheet metal plenum or ductwork near the heater that should be tightened up.
- A filthy filter, which can likewise trigger whistling.
10. The Heating System Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your furnace, and if it leakages onto the floor, the concern is probably a stopped up drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the heater are usually brought on by:.
- An extremely dirty filter that ought to be washed, if washable, or replaced.
- A dead rodent or bird somewhere in the system, usually a job for a professional heating system specialist.
12. The CO Display Going Off.
A carbon monoxide gas alarm must be taken seriously. Turn the furnace maintenance calgary furnace off at the thermostat. Don't go into the room where the heating system lies. Open doors and windows, and go outside. Call 911 from a cellular phone outside your home.
How to Choose a Gas Furnace Repair Work Professional.
Some homeowners select the most affordable repair service in Calgary, and the outcomes are typically poor. Inexpensive services are either just getting started, so do not have experience or they have a bad credibility, so must give inexpensive rates to get jobs.
On the other hand, some services are overpriced. The very best method to find quality heater repair work at a reasonable price is to get quotes from several of the top heating system repair work companies in Calgary. Meet with each, learn about their history and the experience of the service technicians that will do the work. Pick an experienced heating system repair work professional with affordable rates.