An excellent gas furnace repairing guide helps you in determining what is wrong with the furnace based upon its signs. That's what we do here with clear, uncomplicated info.
Fixing Common Gas Heater Issues
Every year, countless Calgary house owners ask, "What's wrong with my gas furnace?" If you remain in that situation, this guide will equip you with info prior to you call a furnace company. Understanding is defense versus being made the most of-- though most repair professionals have sound ethics.
Keep in mind: This guide covers the most common issues, specifically those most property owners can easily talk to no tools or basic tools such as screwdrivers and a multimeter.
1. The Heating System Won't Start
If nothing occurs when the thermostat is set above the house's existing temperature level, the most likely causes are these:
- The heater switch (located on or near the heater, looks like a common light switch) is switched off and simply requires to be turned on, though the heating system might have a short delay prior to starting
- 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 heater
- The thermostat isn't set to "heat," which is easy to check and correct
- The thermostat isn't working, and this is in some cases brought on by a wire coming loose, so examine the circuitry connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and should be replaced, a problem that can be identified utilizing 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 real on more recent furnaces that are equipped to shut down if the filter isn't enabling sufficient air flow, a condition that can trigger severe mechanical failure
- The heater's main circuit board/control board is bad, an issue that can be identified by an A/C specialist is nothing else solves the issue
2. Heater Blowing Cold Air
If the furnace won't produce heat, you can examine to see if it is getting power furnace service by moving the fan switch cool heat from the "Vehicle" position to the "On" position. If the fan begins, then the furnace is getting power. The likely issues then are:
- The gas is switched 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 must be changed
- The ignitor is failing and should be replaced
- The draft motor isn't working or the fresh-air intake is blocked, possibly by snow or particles, and needs to be cleared
3. The Draft Motor Runs, Heater Will Not 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 heater closes down, the cause might be:
- The motor or the board that manages it has actually failed and should be replaced
- A blocked air intake or blocked exhaust chimney (snow, debris and bird's nests are common causes) should be cleared
- One of the problems discussed above with gas, gas valve and ignitor need to 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 help you in repairing draft motor problems and what is triggering them.
5. The Flame Begins, however the Heating system Shuts Down
If the burner starts making heat but quickly turns off without warming your house, the flame sensor isn't working. If the sensing unit has rust on it, sanding it may work, though replacing 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 concerns:
- The fan switch on the thermostat is set to "on" instead of "vehicle".
- Relays in the control board are stuck in the closed position, so the blower is getting a constant supply of electrical energy, and the control panel must be changed.
- The thermostat likewise has contacts that control power to the furnace, and they can be used, so the thermostat must be changed.
7. Why Does the Furnace Keep Turning Off?
If your furnace burner lights however the heating system soon turns off, there are a couple of common concerns that may cause this:.
- The heater filter is unclean and need to be cleaned up or changed.
- The flame sensing unit isn't working and need to be replaced.
- The thermostat is stopping working.
- While these prevail, there are a number of other potential causes finest diagnosed by a heater service technician. This video gives thorough coverage to the issue of furnace short-cycling.
8. The Furnace Runs however Can't Keep your home Warm.
If your heater is correctly sized for your house, then it must keep your house warm even in extreme cold. If it runs continuously but isn't providing adequate heat, the most likely causes are:.
- A dirty filter that need to be cleaned (just if the washable type) or replaced.
- The filter is the incorrect type for your heater and limits airflow, so should be changed.
- The filter is installed backwards, a problem that can be examined by looking for the arrows on the filter frame that show appropriate installation instructions with the circulation of air.
- Air ducts are leaking, often producing telltale whistling noises, and it is time to have them sealed as suggested by Energy Star.
9. The Heating System Makes Loud Noises.
A loud furnace is most often the outcome of:.
- The heater being a single-stage model that works 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 near the heating system that must be tightened.
- A filthy filter, which can likewise cause whistling.
10. The Heating System Leaks when Air Conditioner is Running.
Water condenses on the evaporator coil in your heater, and if it leaks onto the floor, the concern is most likely a clogged up drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the furnace are generally brought on by:.
- An extremely unclean filter that ought to be cleaned, if washable, or replaced.
- A dead rodent or bird somewhere in the system, generally a task for a professional heater professional.
12. The CO Monitor Going Off.
A carbon monoxide gas alarm need to be taken seriously. Turn the heating system off at the thermostat. Don't go into the space where the heating system lies. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.
How to Choose a Gas Heating System Repair Work Professional.
Some house owners choose the most inexpensive repair work service in Calgary, and the results are normally bad. Inexpensive services are either simply starting, so do not have experience or they have a bad track record, so need to give low-cost rates to get tasks.
On the other hand, some services are overpriced. The very best way to discover quality furnace repair at a reasonable rate is to get quotes from several of the leading furnace repair work business in Calgary. Meet each, learn more about their history and the experience of the professionals that will do the work. Pick a skilled heating system repair professional with sensible rates.