An excellent gas furnace repairing guide helps you in determining what is wrong with the heater based on its symptoms. That's what we do here with clear, simple info.
Fixing Common Gas Furnace Problems
Every year, countless Calgary house owners ask, "What's wrong with my gas heating system?" If you're in that situation, this guide will equip you with info prior to you call a heater business. Understanding is protection against being made the most of-- though the majority of repair specialists have sound principles.
Note: This guide covers the most common issues, especially those most homeowners can easily check with no tools or fundamental tools such as screwdrivers and a multimeter.
1. The Furnace Won't Start
If absolutely nothing occurs when the thermostat is set above the home's present temperature, the most likely causes are these:
- The heating system switch (located on or near the furnace, appears like a common light switch) is turned off and merely 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 a circuitry brief in the furnace
- The thermostat isn't set to "heat," which is simple to inspect and treat
- The thermostat isn't working, and this is often caused 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, an issue that can be identified utilizing an electrical multimeter that reveals if a circuit is total
- The filter is filthy and need to be replaced or cleaned, a problem that is particularly true on newer furnaces that are equipped to close down if the filter isn't permitting adequate air flow, a condition that can trigger major mechanical failure
- The heater's main circuit board/control board is bad, an issue that can be identified by an A/C service technician is nothing else resolves the issue
2. Furnace Blowing Cold Air
If the heater won't 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 comes on, then the heating system is getting power. The most likely problems then are:
- The gas is shut off, so inspect the gas dick near the furnace to make sure it is parallel to the gas line
- The gas control valve isn't opening and need to be changed
- The ignitor is stopping working and need to be replaced
- The draft motor isn't functioning or the fresh-air consumption is obstructed, possibly by snow or particles, and needs to be cleared
3. The Draft Motor Runs, Heating System Won't Start
The draft motor is likewise called the inducer motor. It pulls hot combustion gases through the heating system and out the exhaust stack. If it begins and then the heating system closes down, the cause might be:
- The motor or the board that controls it has stopped working and must be replaced
- A blocked air intake or blocked exhaust chimney (snow, debris and bird's nests prevail causes) need to be cleared
- One of the problems talked about above with gas, gas valve and ignitor must be dealt with
4. The Draft Motor Will Not 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 triggering them.
5. The Flame Begins, but the Heating system Shuts Down
If the burner starts making heat but quickly shuts down without warming your home, the flame sensing unit isn't working. If the sensor has deterioration on it, sanding it might work, though changing it is a longer-lasting repair.
6. The Blower Won't Turn Off
If the blower motor runs all the time, furnace company calgary there are three common issues:
- 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 replaced.
- The thermostat likewise has contacts that manage power to the furnace, and they can be used, so the thermostat must be changed.
7. Why Does the Heater Keep Shutting Off?
If your heating system burner lights but the heater soon shuts down, there are a few typical problems that might cause this:.
- The heating system filter is filthy and need to be cleaned or replaced.
- The flame sensor isn't working and should be changed.
- The thermostat is failing.
- While these are common, there are a number of other potential causes best identified by a furnace specialist. This video provides in-depth coverage to the problem of heater short-cycling.
8. The Furnace Runs but Can't Keep the House Warm.
If your furnace is effectively sized for your home, then it needs to keep your house warm even in extreme cold. If it runs constantly but isn't supplying sufficient heat, the likely causes are:.
- A filthy filter that should be washed (only if the washable type) or changed.
- The filter is the wrong type for your furnace and limits airflow, so must be changed.
- The filter is installed backwards, an issue that can be inspected by searching for the arrows on the filter frame that reveal appropriate installation direction with the flow of air.
- Air ducts are dripping, sometimes producing telltale whistling noises, and it is time to have them sealed as recommended by Energy Star.
9. The Furnace Makes Loud Noises.
A loud furnace is usually the result of:.
- The heater 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 need to be changed.
- A leak in the heater cabinet, sheet metal plenum or ductwork near the heater that should be tightened up.
- A filthy filter, which can also trigger whistling.
10. The Heater Leaks when A/C is Running.
Water condenses on the evaporator coil in your heating system, and if it leakages onto the flooring, the problem is more than likely a clogged up hvac company drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the furnace are normally caused by:.
- A really filthy filter that should be washed, if washable, or changed.
- A dead rodent or bird somewhere in the system, usually a job for a professional furnace service technician.
12. The CO Screen Going Off.
A carbon monoxide gas alarm need to be taken seriously. Turn the heating system off at the thermostat. Don't enter into the space where the heating system is located. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.
How to Choose a Gas Heater Repair Professional.
Some homeowners pick the most affordable repair work service in Calgary, and the results are usually poor. Inexpensive services are either simply beginning, so do not have experience or they have a bad track record, so must provide cheap pricing to get jobs.
On the other hand, some services are overpriced. The very best method to find quality heater repair work at a fair cost is to get estimates from numerous of the leading heating system repair work companies in Calgary. Consult with each, find out about their history and the experience of the service technicians that will do the work. Choose a knowledgeable furnace repair professional with affordable rates.