A great 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.
Repairing Common Gas Heater Issues
Every year, countless Calgary house owners ask, "What's wrong with my gas heating system?" If you're in that scenario, this guide will equip you with details before you call a heating system business. Knowledge is defense versus being made the most of-- though most repair work professionals have sound ethics.
Note: This guide covers the most common issues, specifically those most property owners can easily consult no tools or fundamental tools such as screwdrivers and a multimeter.
1. The Furnace Won't Start
If nothing takes place when the thermostat is set above the home's existing temperature, the most likely causes are these:
- The heater switch (situated on or near the heating system, appears like a typical light switch) is turned off and merely needs to be switched on, though the furnace might have a short hold-up before starting
- The breaker is off, and if the circuit continues to trip 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 check and remedy
- The thermostat isn't working, and this is in some cases caused by a wire coming loose, so examine the wiring connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and should be changed, a problem that can be identified using an electrical multimeter that shows if a circuit is total
- The filter is dirty and should be replaced or cleaned up, an issue that is particularly real on more recent heaters that are geared up to shut down if the filter isn't enabling adequate air flow, a condition that can trigger serious mechanical failure
- The heater's primary circuit board/control board is bad, an issue that can be identified by an A/C service technician is absolutely nothing else resolves the problem
2. Heater Blowing Cold Air
If the furnace will not produce heat, you can examine 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 likely problems then are:
- The gas is switched off, so check the gas dick near the furnace to make certain it is parallel to the gas line
- The gas control valve isn't opening and must be changed
- The ignitor is failing and must be changed
- The draft motor isn't operating or the fresh-air intake is obstructed, possibly by snow or debris, and requires to be cleared
3. The Draft Motor Runs, Heating System Will Not Start
The draft motor is also called the inducer heating and air conditioning motor. It pulls hot combustion gases through the heater and out the exhaust stack. If it begins and after that the heating system closes down, the cause might be:
- The motor or the board that manages it has failed and must be changed
- A blocked air intake or blocked exhaust chimney (snow, debris and bird's nests prevail causes) must be cleared
- One of the problems gone over heating and cooling companies above with gas, gas valve and ignitor must be resolved
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 troubleshooting draft motor problems and what is causing them.
5. The Flame Begins, however the Heating system Shuts Down
If the burner starts making heat but soon turns off without warming your house, the flame sensor isn't working. If the sensor has rust on it, sanding it might work, though replacing it is a longer-lasting fix.
6. The Blower Won't Shut Down
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 board are stuck in the closed position, so the blower is getting a continuous supply of electricity, and the control panel need to be replaced.
- 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 Heating System Keep Turning Off?
If your heating system burner lights however the furnace quickly shuts off, there are a couple of common issues that may cause this:.
- The heating system filter is unclean and must be cleaned or replaced.
- The flame sensor isn't working and must be replaced.
- The thermostat is stopping working.
- While these prevail, there are a number of other potential causes finest diagnosed by a heating system professional. This video provides in-depth coverage to the problem of heater short-cycling.
8. The Heating System Runs however Can't Keep your house Warm.
If your furnace is appropriately sized for your house, then it needs to keep your home warm even in severe cold. If it runs continuously but isn't supplying adequate heat, the likely causes are:.
- A dirty filter that need to be washed (only if the washable type) or changed.
- The filter is the incorrect type for your heater and limits air flow, so should be replaced.
- The filter is set up backwards, a problem that can be checked by looking for the arrows on the filter frame that show correct setup direction with the circulation of air.
- Duct 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 Noises.
A noisy heater is most often the result of:.
- The heater being a single-stage design that operates 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 heating system cabinet, sheet metal plenum or ductwork near the furnace that should be tightened.
- An unclean filter, which can likewise trigger whistling.
10. The Heater Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your furnace, and if it leakages onto the flooring, the issue is most likely a stopped up drain pan or drain line.
11. The Air Coming from the Heating System Smells Bad.
Foul odors from the furnace are generally caused by:.
- An extremely unclean filter that need to be washed, if washable, or changed.
- A dead rodent or bird someplace in the system, generally a task for an expert furnace technician.
12. The CO Monitor Going Off.
A carbon monoxide gas alarm should be taken seriously. Turn the heating system off at the thermostat. Don't go into the room where the heater is located. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.
How to Choose a Gas Heating System Repair Professional.
Some property owners pick the most affordable repair service in Calgary, and the results are usually poor. Cheap services are either just beginning, so do not have experience or they have a bad track record, so need to give low-cost rates to get jobs.
On the other hand, some services are overpriced. The best way to find quality furnace repair at a reasonable price is to get estimates from several of the leading heating system repair work business in Calgary. Meet each, find out about their history and the experience of the professionals that will do the work. Select a skilled heater repair work professional with affordable rates.