A good gas furnace fixing guide helps you in determining what is wrong with the furnace based upon its signs. That's what we do here with clear, uncomplicated information.
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 circumstance, this guide will equip you with information before you call a heating system business. Knowledge is defense against being made the most of-- though many repair work experts have sound ethics.
Note: This guide covers the most common problems, especially those most property owners can quickly talk to no tools or fundamental tools such as screwdrivers and a multimeter.
1. The Heater 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 heating system switch (located on or near the heater, looks like a common light switch) is switched off and merely requires to be turned on, though the heater might have a short delay before starting
- The circuit breaker is off, and if the circuit continues to trip after it is turned back on, there is likely an electrical wiring brief in the heating system
- The thermostat isn't set to "heat," which is simple to inspect and fix
- The thermostat isn't working, and this is sometimes brought on by a wire coming loose, so inspect the wiring connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and must be changed, a problem that can be identified using an electrical multimeter that shows if a circuit is total
- The filter is filthy and should be replaced or cleaned, a problem that is particularly true on newer heating systems that are equipped to shut down if the filter isn't enabling sufficient air circulation, a condition that can trigger serious mechanical failure
- The heating system's main circuit board/control board is bad, a problem that can be detected by a HVAC technician is nothing else solves the problem
2. Heater 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 "Car" position to the "On" position. If the fan begins, then the furnace is getting power. The likely problems then are:
- The gas is switched off, so examine the gas dick near the heating system 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 need to be changed
- The draft motor isn't working or the fresh-air consumption is obstructed, perhaps by snow or debris, and needs to be cleared
3. The Draft Motor Runs, Heater Won't Start
The draft motor is likewise called the inducer motor. It pulls hot furnace installation calgary combustion gases through the furnace and out the exhaust stack. If it starts and then the furnace shuts down, the cause might be:
- The motor or the board that controls it has actually failed and should be changed
- A blocked air consumption or blocked 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 must be dealt with
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 fixing draft motor concerns and what is triggering them.
5. The Flame Starts, but the Heating system Shuts Down
If the burner begins making heat but quickly shuts down without warming your house, the flame sensor isn't working. If the sensing unit has rust on it, sanding it may work, though changing it is a longer-lasting repair.
6. The Blower Will Not Shut Down
If the blower motor runs all the time, there are 3 typical problems:
- The fan switch on the thermostat is set to "on" rather than "vehicle".
- 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 must be replaced.
- The thermostat also has contacts that manage power to the furnace, and they can be used, so the thermostat should be changed.
7. Why Does the Heating System Keep Shutting Off?
If your furnace burner lights however the heating system quickly turns off, there are a couple of typical issues that might trigger this:.
- The furnace filter is dirty and must be cleaned or replaced.
- The flame sensor isn't working and should be replaced.
- The thermostat is failing.
- While these are common, there are a number of other possible causes finest identified by a heating system service technician. This video offers in-depth coverage to the issue of furnace short-cycling.
8. The Furnace Runs but Can't Keep your home Warm.
If your heater is effectively sized for your home, then it ought to keep your house warm even in severe cold. If it runs constantly but isn't supplying sufficient heat, the most likely causes are:.
- An unclean filter that should be cleaned (just if the washable type) or changed.
- The filter is the wrong type for your heater and limits airflow, so must be replaced.
- The filter is set up in reverse, an issue that can be examined hvac heating and cooling by trying to find the arrows on the filter frame that show correct setup direction with the flow of air.
- Air ducts are leaking, in some cases producing telltale whistling noises, and it is time to have them sealed as advised by Energy Star.
9. The Heater Makes Loud Noises.
A loud furnace is most often the result of:.
- The heating system being a single-stage model 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 need to be changed.
- A leakage in the heating system cabinet, sheet metal plenum or ductwork near the furnace that should 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 leakages onto the flooring, the problem is probably a clogged up drain pan or drain line.
11. The Air Coming from the Heating System Smells Bad.
Foul odors from the heating system are typically triggered by:.
- An extremely unclean filter that must be washed, if washable, or replaced.
- A dead rodent or bird somewhere in the system, typically a job for a professional heater specialist.
12. The CO Display Going Off.
A carbon monoxide alarm need to be taken seriously. Turn the heating system off at the thermostat. Don't go into the room where the furnace is located. Open doors and windows, and go outside. Call 911 from a cell phone outside your home.
How to Pick a Gas Heating System Repair Work Specialist.
Some property owners pick the least expensive repair work service in Calgary, and the outcomes are usually bad. Inexpensive services are either just getting going, so do not have experience or they have a bad reputation, so should offer inexpensive pricing to get tasks.
On the other hand, some services are overpriced. The best method to find quality heater repair work at a fair cost is to get price quotes from several of the top furnace repair companies in Calgary. Meet each, learn about their history and the experience of the specialists that will do the work. Choose a skilled heating system repair work specialist with sensible rates.