A great gas heating system fixing guide helps you in identifying what is wrong with the furnace based upon its signs. That's what we do here with clear, uncomplicated details.
Repairing Common Gas Furnace Issues
Every year, countless Calgary house owners ask, "What's wrong with my gas heating system?" If you're in that situation, this guide will arm you with information prior to you call a heating system business. Understanding is security versus being taken advantage of-- though the majority of repair professionals have sound principles.
Note: This guide covers the most typical issues, especially those most property owners can quickly contact no tools or basic tools such as screwdrivers and a multimeter.
1. The Heating System Won't Start
If nothing takes place when the thermostat is set above the home's current temperature level, the most likely causes are these:
- The heater switch (located on or near the heating system, looks like a typical light switch) is turned off and merely requires to be turned on, though the heater may have a brief hold-up prior to beginning
- 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 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 check the wiring connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and need to be changed, a concern that can be identified utilizing an electrical multimeter that reveals if a circuit is complete
- The filter is unclean and should be replaced or cleaned, a concern that is especially true on more recent furnaces that are geared up to shut down if the filter isn't enabling adequate air circulation, a condition that can cause severe mechanical failure
- The furnace's main circuit board/control board is bad, an issue that can be identified by a HEATING AND COOLING service technician is nothing else solves the problem
2. Furnace Blowing Cold Air
If the furnace will not produce heat, you can inspect to see if it is getting power by moving the fan switch from the "Auto" position to the "On" position. If the fan comes on, then the heater is getting power. The most likely problems then are:
- The gas is turned off, so inspect the gas cock near the heater to make sure 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 must be changed
- The draft motor isn't operating or the fresh-air consumption is obstructed, perhaps by snow or debris, and requires 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 furnace and out the exhaust stack. If it begins and then the furnace shuts down, the cause might be:
- The motor or the board that controls it has actually stopped working and should be changed
- A blocked air consumption or blocked exhaust chimney (snow, particles and bird's nests prevail causes) should be cleared
- Among the concerns discussed above with gas, gas valve and ignitor need to be addressed
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 repairing draft motor problems and what is triggering them.
5. The Flame Starts, however the Furnace Shuts Down
If the burner begins making heat however quickly shuts off without warming your house, the flame sensing unit isn't working. If the sensing unit has corrosion on it, sanding it might work, though replacing it is a longer-lasting repair.
6. The Blower Won't Turn Off
If the blower motor runs all the time, there are 3 common concerns:
- 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 energy, and the control board need to be changed.
- The thermostat also has contacts that control power to the furnace, and they can be used, so the thermostat needs to be changed.
7. Why Does the Heating System Keep Shutting Down?
If your heating system burner lights but the heating system soon shuts off, there are a couple of common concerns that may cause this:.
- The furnace filter is dirty and should be cleaned up or changed.
- The flame sensor isn't working and need to be changed.
- The thermostat is failing.
- While these are common, there are several other prospective causes finest diagnosed by a heater specialist. This video provides extensive protection to the issue of heating system short-cycling.
8. The Heating System Runs but Can't Keep the House Warm.
If your furnace is appropriately sized for your house, then it must keep your home warm even in extreme cold. If it runs continuously however isn't providing sufficient heat, the likely causes are:.
- A filthy filter that should be washed (only hvac repair if the washable type) or replaced.
- The filter is the incorrect type for your heater and restricts airflow, so must be changed.
- The filter is installed backwards, a problem that can be examined by searching for the arrows on the filter frame that reveal appropriate setup direction with the circulation of air.
- Duct are dripping, often producing telltale whistling noises, and it is time to have them sealed as recommended by Energy Star.
9. The Heater Makes Loud Noises.
A noisy heating system is usually the outcome of:.
- The heating system being a single-stage design that runs 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 must be replaced.
- A leak in the furnace cabinet, sheet metal plenum or ductwork near the heater that must be tightened.
- A filthy filter, which can also cause 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 floor, the problem is most likely a blocked drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the heater are generally triggered by:.
- A very filthy filter that must be cleaned, if washable, or replaced.
- A dead rodent or bird someplace in the system, usually a job for an expert heating system technician.
12. The CO Monitor Going Off.
A carbon monoxide alarm must be taken seriously. Turn the heater off at the thermostat. Do not go into the room where the heater is located. Open doors and windows, and go outside. Call 911 from a mobile phone outside your house.
How to Choose a Gas Heater Repair Work Expert.
Some homeowners choose the most affordable repair work service in Calgary, and the results are typically bad. Low-cost services are either simply getting going, so lack experience or they have a bad track record, so need to give inexpensive rates to get tasks.
On the other hand, some services are overpriced. The best way gas furnace to discover quality heater repair at a reasonable cost is to get estimates from several of the leading heating system repair business in Calgary. Meet with each, learn more about their history and the experience of the technicians that will do the work. Choose a skilled heater repair work specialist with sensible rates.