An excellent gas furnace fixing guide assists you in determining what is wrong with the furnace based upon its signs. That's what we do here with clear, simple information.
Repairing Common Gas Furnace Problems
Every year, countless Calgary property owners ask, "What's wrong with my gas heating system?" family heating and cooling If you're in that circumstance, this guide will arm you with info prior to you call a heating system company. Understanding is protection against being taken advantage of-- though a lot of repair specialists have sound ethics.
Keep in mind: This guide covers the most typical problems, specifically those most house owners can quickly contact no tools or basic tools such as screwdrivers and a multimeter.
1. The Furnace Will Not Start
If absolutely nothing occurs when the thermostat is set above the house's existing temperature level, the most likely causes are these:
- The furnace switch (situated on or near the heating system, appears like a typical light switch) is switched off and simply requires to be switched on, though the heating system might have a brief 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 short in the furnace
- The thermostat isn't set to "heat," which is easy to examine and treat
- The thermostat isn't working, and this is often triggered by a wire coming loose, so check the electrical wiring connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and need to be replaced, a concern that can be diagnosed using an electrical multimeter that shows if a circuit is complete
- The filter is dirty and need to be replaced or cleaned, a problem that is specifically true on more recent heating systems that are geared up to shut down if the filter isn't permitting adequate air flow, a condition that can cause serious mechanical failure
- The heater's primary circuit board/control board is bad, a problem that can be identified by a HVAC technician is absolutely nothing else resolves the problem
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 "Automobile" position to the "On" position. If the fan comes on, then the heater is getting power. The most likely concerns then are:
- The gas is switched off, so inspect the gas dick near the heating system to make certain it is parallel to the gas line
- The gas control valve isn't opening and must be replaced
- The ignitor is failing and should be replaced
- The draft motor isn't working or the fresh-air intake is blocked, perhaps by snow or debris, and requires to be cleared
3. The Draft Motor Runs, Furnace 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 starts and then the heater closes down, the cause might be:
- The motor or the board that manages it has stopped working and must be replaced
- An obstructed air consumption or blocked exhaust chimney (snow, debris and bird's nests are common causes) must be cleared
- Among the problems discussed above with gas, gas valve and ignitor must be dealt with
4. The Draft Motor Won't 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 causing them.
5. The Flame Begins, however the Heater Shuts Down
If the burner begins making heat however quickly turns off without warming your home, the flame sensing unit isn't working. If the sensing unit has rust on it, sanding it may work, though changing it is a longer-lasting repair.
6. The Blower Won't Shut Off
If the blower motor runs all the time, there are three typical problems:
- The fan switch 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 power, and the control panel must be changed.
- The thermostat also has contacts that control power to the furnace, and they can be worn, so the thermostat must be changed.
7. Why Does the Furnace Keep Shutting Off?
If your heating system burner lights but the furnace quickly shuts down, there are a couple of typical problems that might cause this:.
- The heating system filter is filthy and should be cleaned up or changed.
- The flame sensor isn't working and ought to be changed.
- The thermostat is stopping working.
- While these prevail, there are several other potential causes best detected by a heating system specialist. This video offers in-depth coverage to the problem of heater short-cycling.
8. The Heater Runs but Can't Keep the House Warm.
If your heater is appropriately sized for your home, then it must keep your home warm even in severe cold. If it runs constantly but isn't providing adequate heat, the likely causes are:.
- An unclean filter that need to be washed (just if the washable type) or replaced.
- The filter is the incorrect type for your heating system and restricts air flow, so need to be replaced.
- The filter is set up backwards, an issue that can be inspected by trying to find the arrows on the filter frame that reveal proper setup instructions with the circulation of air.
- Duct are dripping, often producing telltale whistling sounds, and it is time to have them sealed as advised by Energy Star.
9. The Furnace Makes Loud Noises.
A noisy furnace is most often the result of:.
- The heating system 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 emergency furnace repair calgary the blower motor that should be replaced.
- A leak in the heater cabinet, sheet metal plenum or ductwork near the furnace that need to be tightened up.
- A dirty filter, which can likewise trigger whistling.
10. The Furnace Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your furnace, and if it leakages onto the flooring, the concern is most likely a clogged drain pan or drain line.
11. The Air Coming from the Heating System Smells Bad.
Foul odors from the heater are usually triggered by:.
- An extremely filthy filter that need to be washed, if washable, or replaced.
- A dead rodent or bird someplace in the system, generally a task for a professional heater specialist.
12. The CO Display Going Off.
A carbon monoxide alarm should be taken seriously. Turn the heater off at the thermostat. Don't enter into the room where the furnace is located. Open doors and windows, and go outside. Call 911 from a cell phone outside your home.
How to Select a Gas Heating System Repair Expert.
Some homeowners choose the cheapest repair service in Calgary, and the results are usually poor. Cheap services are either simply getting started, so do not have experience or they have a bad credibility, so should give inexpensive rates to get tasks.
On the other hand, some services are overpriced. The best method to find quality heating system repair work at a fair rate is to get quotes from several of the leading heating system repair companies in Calgary. Meet each, find out about their history and the experience of the specialists that will do the work. Pick an experienced heater repair work specialist with affordable rates.