An excellent gas heater fixing guide assists you in determining what is wrong with the furnace based on its symptoms. That's what we do here with clear, straightforward details.
Troubleshooting Common Gas Heater Issues
Every year, countless Calgary house owners ask, "What's wrong with my gas furnace?" If you remain in that scenario, this guide will equip you with info before you call a heater company. Knowledge is security versus being taken advantage of-- though most repair work experts have sound ethics.
Note: This guide covers the most common issues, specifically those most property owners can quickly consult no tools or fundamental tools such as screwdrivers and a multimeter.
1. The Furnace Will Not Start
If nothing happens when the thermostat is set above the house's current temperature level, the most likely causes are these:
- The heater switch (situated on or near the heater, appears like a common light switch) is switched off and simply needs to be switched on, though the furnace might 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 heater
- The thermostat isn't set to "heat," which is simple to check and treat
- The thermostat isn't working, and this is sometimes 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 changed, a problem that can be identified using an electrical multimeter that reveals if a circuit is total
- The filter is filthy and must be replaced or cleaned, a problem that is particularly true on newer heating systems that are geared up to close down if the filter isn't enabling appropriate air furnace service calgary flow, a condition that can cause serious mechanical failure
- The heating system's primary circuit board/control board is bad, a problem that can be detected by an A/C service technician is nothing else resolves the issue
2. Furnace Blowing Cold Air
If the heating system won't produce heat, you can examine 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 furnace is getting power. The likely concerns then are:
- The gas is shut off, so check the gas cock near the heater to ensure it is parallel to the gas line
- The gas control valve isn't opening and should be changed
- The ignitor is failing and should be replaced
- The draft motor isn't operating or the fresh-air consumption is obstructed, possibly by snow or debris, and requires to be cleared
3. The Draft Motor Runs, Furnace Will Not Start
The draft motor is likewise called the inducer motor. It pulls hot combustion gases through the heater and out the exhaust stack. If it begins and after that the heater closes down, the cause might be:
- The motor or the board that controls it has stopped working and need to be replaced
- An obstructed air intake or blocked exhaust chimney (snow, debris and bird's nests are common causes) need to be cleared
- One of the concerns gone over above with gas, gas valve and ignitor should be resolved
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 assist you in troubleshooting draft motor problems and what is causing them.
5. The Flame Begins, but the Heater Shuts Down
If the burner starts making heat however soon turns off without warming your house, the flame sensing unit isn't working. If the sensor has corrosion on it, sanding it might work, though changing it is a longer-lasting fix.
6. The Blower Will Not Shut Down
If the blower motor runs all the time, there are 3 common 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 energy, and the control board must be changed.
- The thermostat also has contacts that control power to the heating system, and they can be used, so the thermostat must be changed.
7. Why Does the Furnace Keep Shutting Down?
If your furnace burner lights but the furnace quickly shuts down, there are a few common issues that might cause this:.
- The furnace filter is dirty and ought to be cleaned up or changed.
- The flame sensing unit isn't working and need to be changed.
- The thermostat is failing.
- While these are common, there are a number of other possible causes best identified by a heating system professional. This video gives extensive protection to the issue of heating system short-cycling.
8. The Heating System Runs but Can't Keep your house Warm.
If your heating system is effectively sized for your home, then it must keep your house warm even in severe cold. If it runs constantly but isn't supplying sufficient heat, the likely causes are:.
- A dirty filter that should be cleaned (just if the washable type) or changed.
- The filter is the incorrect type for your furnace and limits airflow, so should be replaced.
- The filter is set up in reverse, an issue that can be examined by looking for the arrows on the filter frame that reveal appropriate installation direction with the flow of air.
- Duct are leaking, sometimes producing obvious whistling sounds, and it is time to have them sealed as recommended by Energy Star.
9. The Furnace Makes Loud Noises.
A loud furnace is most often the outcome of:.
- The furnace 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 should be replaced.
- A leak in the heater cabinet, sheet metal plenum or ductwork furnace installation calgary near the furnace that need to be tightened.
- A filthy filter, which can also cause whistling.
10. The Heating System Leaks when Air Conditioning is Running.
Water condenses on the evaporator coil in your heater, and if it leaks onto the flooring, the issue is probably a blocked drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the furnace are generally triggered by:.
- A really dirty filter that ought to be washed, if washable, or replaced.
- A dead rodent or bird someplace in the system, usually a task for an expert heating system professional.
12. The CO Screen Going Off.
A carbon monoxide gas alarm ought to be taken seriously. Turn the furnace off at the thermostat. Don't enter into the space where the heater lies. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.
How to Choose a Gas Heater Repair Expert.
Some property owners pick the cheapest repair work service in Calgary, and the results are typically bad. Cheap services are either just getting going, so lack experience or they have a bad reputation, so should give inexpensive prices to get tasks.
On the other hand, some services are overpriced. The very best method to discover quality heating system repair at a reasonable price is to get quotes from several of the top furnace repair work companies in Calgary. Meet with each, discover their history and the experience of the professionals that will do the work. Pick a skilled furnace repair specialist with reasonable rates.