A good gas furnace fixing guide helps you in determining what is wrong with the heating system based upon its signs. That's what we do here with clear, uncomplicated info.
Troubleshooting Common Gas Heater Issues
Every year, countless Calgary property owners ask, "What's wrong with my gas heater?" If you're in that scenario, this guide will equip you with info prior to you call a heater business. Understanding is defense versus being made the most of-- though the majority of repair work professionals have sound ethics.
Note: This guide covers the most common problems, especially those most property owners can easily talk to no tools or standard tools such as screwdrivers and a multimeter.
1. The Heater Won't Start
If nothing occurs when the thermostat is set above the house's current temperature level, the most likely causes are these:
- The furnace switch (situated on or near the heating system, appears like a typical light switch) is shut off and simply requires to be switched on, though the heating system might have a brief hold-up prior to beginning
- The circuit breaker is off, and if the circuit continues to journey after it is turned back on, there is likely a circuitry short in the heater
- The thermostat isn't set to "heat," which is simple to examine and fix
- The thermostat isn't working, and this is often brought on by a wire coming loose, furnace cleaning calgary so inspect the circuitry connections
- The thermostat needs fresh batteries, if battery-powered, or it is bad and need to be replaced, an issue that can be diagnosed utilizing an electrical multimeter that shows if a circuit is total
- The filter is dirty and must be replaced or cleaned, a problem that is specifically true on newer heaters that are equipped to shut down if the filter isn't permitting sufficient air flow, a condition that can cause severe mechanical failure
- The heating system's main circuit board/control board is bad, an issue that can be detected by a HVAC specialist is absolutely nothing else resolves the issue
2. Heater Blowing Cold Air
If the furnace will not produce heat, you can check 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 furnace is getting power. The most likely concerns then are:
- The gas is switched off, so examine the gas cock near the heating system to make sure it is parallel to the gas line
- The gas control valve isn't opening and must be changed
- The ignitor is stopping working and should be replaced
- The draft motor isn't working or the fresh-air consumption is blocked, maybe by snow or particles, and requires to be cleared
3. The Draft Motor Runs, Heater Will Not Start
The draft motor is also called the inducer motor. It pulls hot combustion gases through the heating system and out the exhaust stack. If it starts and after that the heating system closes down, the cause might be:
- The motor or the board that controls it has actually stopped working and should be changed
- An obstructed air intake or blocked exhaust chimney (snow, debris and bird's nests prevail causes) should be cleared
- Among the issues discussed above with gas, gas valve and ignitor must 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 help you in troubleshooting draft motor issues and what is triggering them.
5. The Flame Starts, but the Furnace Shuts Down
If the burner begins making heat but soon shuts down without warming your home, the flame sensing unit isn't working. If the sensor has corrosion on it, sanding it may 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 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 consistent supply of electrical power, and the control board should be replaced.
- The thermostat also has contacts that manage power to the heater, and they can be worn, so the thermostat should be changed.
7. Why Does the Furnace Keep Shutting Off?
If your heating hvac companies system burner lights but the furnace quickly turns off, there are a few typical problems that may cause this:.
- The furnace filter is unclean and must be cleaned or replaced.
- The flame sensor isn't working and need to be changed.
- The thermostat is failing.
- While these prevail, there are numerous other prospective causes best diagnosed by a furnace service technician. This video gives in-depth coverage to the issue of heating system short-cycling.
8. The Furnace Runs but Can't Keep your home Warm.
If your heating system is correctly sized for your home, then it must keep your house warm even in extreme cold. If it runs constantly but isn't providing enough heat, the likely causes are:.
- A filthy filter that should be cleaned (just if the washable type) or replaced.
- The filter is the wrong type for your heating system and limits air flow, so should be changed.
- The filter is set up backwards, a problem that can be checked by trying to find the arrows on the filter frame that reveal correct setup instructions with the flow of air.
- Duct are leaking, often producing obvious whistling sounds, and it is time to have them sealed as recommended by Energy Star.
9. The Heating System Makes Loud Noises.
A loud heating system is frequently the result of:.
- The furnace being a single-stage design 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 leakage in the heating system cabinet, sheet metal plenum or ductwork near the furnace that should be tightened.
- A filthy filter, which can likewise cause whistling.
10. The Furnace Leaks when AC is Running.
Water condenses on the evaporator coil in your heating system, and if it leaks onto the floor, the issue is probably a clogged drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the heating system are typically caused by:.
- A really filthy filter that should be cleaned, if washable, or changed.
- A dead rodent or bird somewhere in the system, usually a task for an expert heating system professional.
12. The CO Monitor 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 heating system lies. Open doors and windows, and go outside. Call 911 from a cell phone outside your home.
How to Pick a Gas Furnace Repair Professional.
Some property owners pick the least expensive repair service in Calgary, and the outcomes are usually bad. Cheap services are either just starting, so lack experience or they have a bad reputation, so need to provide cheap rates to get tasks.
On the other hand, some services are overpriced. The very best way to find quality heater repair work at a reasonable price is to get quotes from several of the top heating system repair work business in Calgary. Meet each, learn about their history and the experience of the professionals that will do the work. Choose a skilled heating system repair specialist with sensible rates.