An excellent gas heater repairing guide assists you in furnace cleaning determining what is wrong with the heater based upon its signs. That's what we do here with clear, simple information.
Troubleshooting Common Gas Heater Issues
Every year, countless Calgary property owners ask, "What's wrong with my gas furnace?" If you remain in that scenario, this guide will equip you with information before you call a heater company. Knowledge is security versus being taken advantage of-- though a lot of repair specialists have sound principles.
Keep in mind: This guide covers the most common problems, especially those most property owners can quickly check with no tools or fundamental tools such as screwdrivers and a multimeter.
1. The Heater Will Not Start
If nothing occurs when the thermostat is set above the home's existing temperature level, the most likely causes are these:
- The heater switch (located on or near the furnace, appears like a typical light switch) is turned off and simply requires to be switched on, though the heater may have a brief hold-up before beginning
- The breaker is off, and if the circuit continues to trip after it is turned back on, there is likely a circuitry short in the heating system
- The thermostat isn't set to "heat," which is easy to inspect and fix
- The thermostat isn't working, and this is sometimes caused by a wire coming loose, so examine the wiring connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and should be replaced, a problem that can be diagnosed using an electrical multimeter that reveals if a circuit is complete
- The filter is dirty and must be changed or cleaned up, a concern that is specifically real on newer furnaces that are geared up to shut down if the filter isn't enabling adequate air flow, a condition that can trigger severe mechanical failure
- The heating system's primary circuit board/control board is bad, an issue that can be diagnosed by a HVAC professional is nothing else resolves the issue
2. Heater Blowing Cold Air
If the furnace won't 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 comes on, then the furnace is getting power. The most likely issues then are:
- The gas is shut off, so examine the gas cock near the furnace to make sure it is parallel to the gas line
- The gas control valve isn't opening and need to be changed
- The ignitor is failing and must be replaced
- The draft motor isn't operating or the fresh-air intake is blocked, possibly by snow or particles, and needs to be cleared
3. The Draft Motor Runs, Heater Won't Start
The draft motor is also called the inducer motor. It pulls hot combustion gases through the heater and out the exhaust stack. If it begins and then the furnace shuts down, the cause might be:
- The motor or the board that manages it has failed and must be changed
- An obstructed air intake or blocked exhaust chimney (snow, particles and bird's nests are common causes) should be cleared
- Among the problems talked about above with gas, gas valve and ignitor should 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 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 soon shuts down without warming your house, the flame sensor isn't working. If the sensor has rust on it, sanding it might work, though changing it is a longer-lasting fix.
6. The Blower Won't Shut Down
If the blower motor runs all the time, there are three common concerns:
- The fan turn on the thermostat is set to "on" rather than "vehicle".
- Relays in the control panel are stuck in the closed position, so the blower is getting a consistent supply of electrical energy, and the control board should be changed.
- The thermostat likewise has contacts that manage power to the heating system, and they can be worn, so the thermostat needs to be changed.
7. Why Does the Heating System Keep Shutting Down?
If your heater burner lights but the heating system soon shuts off, there are a few typical issues that might cause this:.
- The heater filter is filthy and need to be cleaned or changed.
- The flame sensor isn't working and should be changed.
- The thermostat is stopping working.
- While these prevail, there are numerous other prospective causes finest diagnosed by a heater technician. This video gives in-depth protection to the problem of heating system short-cycling.
8. The Furnace Runs however Can't Keep your home Warm.
If your heater is effectively sized for your house, then it needs to keep your house warm even in extreme cold. If it runs constantly however isn't offering sufficient heat, the most likely causes are:.
- An unclean filter that need to be washed (only if the washable type) or replaced.
- The filter is the wrong type for your heater and limits air flow, so need to be replaced.
- The filter is set up backwards, an issue that can be checked by looking for the arrows on the filter frame that reveal proper installation instructions with the circulation of air.
- Duct are leaking, in some cases producing obvious whistling sounds, and it is time to have hvac company calgary them sealed as recommended by Energy Star.
9. The Furnace Makes Loud Noises.
A loud heater is most often the outcome of:.
- The furnace being a single-stage design 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 furnace cabinet, sheet metal plenum or ductwork near the heating system that must be tightened up.
- An unclean filter, which can likewise cause whistling.
10. The Heating System Leaks when A/C is Running.
Water condenses on the evaporator coil in your heating system, and if it leakages onto the floor, the problem is probably a stopped up drain pan or drain line.
11. The Air Coming from the Heater Smells Bad.
Foul odors from the furnace are normally brought on by:.
- An extremely filthy filter that need to be cleaned, if washable, or replaced.
- A dead rodent or bird someplace in the system, normally a job for a professional heater specialist.
12. The CO Display Going Off.
A carbon monoxide alarm must be taken seriously. Turn the heating system off at the thermostat. Do not go into the space where the furnace 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 Specialist.
Some property owners pick the least expensive repair work service in Calgary, and the outcomes are generally bad. Cheap services are either just starting, so lack experience or they have a bad track record, so must offer low-cost pricing to get tasks.
On the other hand, some services are overpriced. The very best way to discover quality heater repair work at a fair cost is to get estimates from several of the top heater repair business in Calgary. Meet with each, learn about their history and the experience of the specialists that will do the work. Select a skilled heater repair work specialist with affordable rates.