An excellent gas furnace fixing guide helps you in determining what is wrong with the furnace based upon its symptoms. That's what we do here with clear, straightforward details.
Fixing Common Gas Furnace Issues
Every year, countless Calgary property owners ask, "What's wrong with my gas heating system?" If you're in that scenario, this guide will arm you with details before you call a heater business. Understanding is security against being benefited from-- though many repair work experts have sound ethics.
Keep in mind: This guide covers the most typical issues, specifically those most homeowners can quickly check with no tools or standard tools such as screwdrivers and a multimeter.
1. The Furnace Won't Start
If absolutely nothing takes place when the thermostat is set above the home's current temperature level, the most likely causes are these:
- The heating system switch (located on or near the heating system, appears like a typical light switch) is switched off and simply requires to be switched on, though the heater might 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 a circuitry brief in the heating system
- The thermostat isn't set to "heat," which is simple to examine and treat
- The thermostat isn't working, and this is sometimes brought on by a wire coming loose, so check the wiring connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and need to be replaced, an issue that can be identified utilizing an electrical multimeter that reveals if a circuit is total
- The filter is dirty and need to be changed or cleaned up, an issue that is specifically real on more recent heaters that are geared up to shut down if the filter isn't enabling appropriate air flow, a condition that can cause serious mechanical failure
- The furnace's main circuit board/control board is bad, a concern that can be detected by an A/C specialist is nothing else fixes the problem
2. Heater 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 begins, then the heater is getting power. The most likely issues then are:
- The gas is shut off, so examine the gas dick near the furnace to make certain it is parallel to the gas line
- The gas control valve isn't opening and need to be replaced
- The ignitor is stopping working and need to be replaced
- The draft motor isn't working or the fresh-air consumption is blocked, maybe by snow or particles, and needs 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 heater and out the exhaust stack. If it begins and after that the furnace shuts down, the cause might be:
- The motor or the board that controls it has stopped working and should be replaced
- An obstructed air intake or obstructed exhaust chimney (snow, particles and bird's nests prevail causes) need to be cleared
- One of the problems discussed above with gas, gas valve and ignitor should be resolved
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 issues and furnace repair calgary what is triggering them.
5. The Flame Begins, but the Heating system Shuts Down
If the burner begins making heat but soon shuts down without warming your house, the flame sensor isn't working. If the sensing unit has rust on it, sanding it might work, though changing it is a longer-lasting fix.
6. The Blower Will Not Turn Off
If the blower motor runs all the time, there are 3 typical issues:
- 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 need to be replaced.
- The thermostat likewise has contacts that manage power to the heating system, and they can be worn, so the thermostat must be replaced.
7. Why Does the Heater Keep Shutting Down?
If your furnace burner lights however the heater quickly shuts down, there are a couple of common problems that may cause this:.
- The furnace filter is dirty and need to be cleaned or replaced.
- The flame sensing unit isn't working and should be replaced.
- The thermostat is failing.
- While these are common, there are several other potential causes best diagnosed by a heating system service technician. This video gives thorough coverage to the problem of furnace short-cycling.
8. The Heating System Runs but Can't Keep the House Warm.
If your heating system is effectively sized for your house, then it ought to keep your home warm even in severe cold. If it runs constantly but isn't offering enough heat, the most likely causes are:.
- A filthy filter that should be cleaned (only if the washable type) or changed.
- The filter is the wrong type for your heater and restricts air flow, so ought to be replaced.
- The filter is set up in reverse, an issue that can be checked by trying to find the arrows on the filter frame that show proper installation direction with the circulation of air.
- Duct are dripping, often producing telltale whistling sounds, and it is time to have them sealed as suggested by Energy Star.
9. The Furnace Makes Loud Noises.
A noisy heater is frequently the outcome of:.
- The heater being a single-stage design that works 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 furnace cabinet, sheet metal plenum or ductwork near the heating system that must be tightened up.
- An unclean filter, which can also cause whistling.
10. The Furnace Leaks when AC is Running.
Water condenses on the evaporator coil in your heater, and if it leaks onto the flooring, the issue is most likely a clogged drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the heater are generally triggered by:.
- A really unclean filter that must be cleaned, if washable, or replaced.
- A dead rodent or bird someplace in the system, typically a job for an expert furnace technician.
12. The CO Monitor Going Off.
A carbon monoxide alarm need to be taken seriously. Turn the heater off at the thermostat. Do not enter into the room where the heater lies. Open doors and windows, and go outside. Call 911 from a mobile phone outside your home.
How to Select a Gas Heating System Repair Specialist.
Some house owners pick the most affordable repair work service in Calgary, and the outcomes are usually poor. Low-cost services are either simply beginning, so do not have experience or they have a bad track furnace cleaning record, so must offer cheap rates to get tasks.
On the other hand, some services are overpriced. The best way to discover quality heater repair work at a fair price is to get quotes from numerous of the leading heater repair business in Calgary. Meet with each, learn about their history and the experience of the service technicians that will do the work. Choose a knowledgeable heating system repair work specialist with sensible rates.