Heating System Repair Work: Leading 12 Heating System Issues and Troubleshooting
A good gas heater fixing guide assists you in determining what is wrong with the furnace based upon its signs. That's what we do here with clear, uncomplicated info.
Repairing Common Gas Heating System Problems
Every year, thousands of Calgary property owners ask, "What's wrong with my furnace cleaning calgary gas heating system?" If you remain in that situation, this guide will arm you with details before you call a heater business. Understanding is security against being taken advantage of-- though a lot hvac companies of repair specialists have sound principles.
Keep in mind: This guide covers the most common problems, especially those most homeowners can quickly consult no tools or standard tools such as screwdrivers and a multimeter.
1. The Furnace Will Not Start
If absolutely nothing occurs when the thermostat is set above the house's current temperature, the most likely causes are these:
- The heater switch (located on or near the heating system, looks like a common light switch) is shut off and simply requires to be switched on, though the heating system might have a brief hold-up prior to starting
- 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 furnace
- The thermostat isn't set to "heat," which is easy to examine and treat
- The thermostat isn't working, and this is sometimes brought on by a wire coming loose, so check the electrical wiring connections
- The thermostat requires fresh batteries, if battery-powered, or it is bad and must be changed, an issue that can be diagnosed using an electrical multimeter that reveals if a circuit is total
- The filter is unclean and must be replaced or cleaned up, an issue that is particularly real on more recent heaters that are equipped to close down if the filter isn't enabling appropriate air flow, a condition that can trigger severe mechanical failure
- The heater's primary circuit board/control board is bad, a concern that can be diagnosed by a HVAC specialist is nothing else resolves the concern
2. Furnace Blowing Cold Air
If the heating system won't produce heat, you can check 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 heating system is getting power. The most likely issues then are:
- The gas is shut off, so examine the gas cock near the furnace to make certain it is parallel to the gas line
- The gas control valve isn't opening and should be changed
- The ignitor is failing and must be replaced
- The draft motor isn't operating or the fresh-air consumption is obstructed, maybe by snow or particles, and requires to be cleared
3. The Draft Motor Runs, Heating System Will Not Start
The draft motor is likewise called the inducer motor. It pulls hot combustion gases through the heater 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 failed and should be changed
- A blocked air intake or blocked exhaust chimney (snow, particles and bird's nests prevail 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 assist you in troubleshooting draft motor concerns and what is causing them.
5. The Flame Begins, however the Heater Shuts Down
If the burner starts making heat however soon shuts down without warming your house, the flame sensing unit isn't working. If the sensor has deterioration on it, sanding it may work, though changing it is a longer-lasting repair.
6. The Blower Won't Turn Off
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 electricity, and the control board need to be replaced.
- The thermostat likewise has contacts that manage power to the heater, and they can be used, so the thermostat needs to be replaced.
7. Why Does the Heating System Keep Turning Off?
If your heating system burner lights but the heating system soon turns off, there are a couple of typical issues that may trigger this:.
- The heater filter is unclean and need to be cleaned up or replaced.
- The flame sensing unit isn't working and must be replaced.
- The thermostat is failing.
- While these prevail, there are a number of other possible causes best detected by a furnace professional. This video provides thorough coverage to the problem of heater short-cycling.
8. The Furnace Runs but Can't Keep the House Warm.
If your heater is properly sized for your home, then it ought to keep your home warm even in extreme cold. If it runs constantly however isn't providing enough heat, the likely causes are:.
- A dirty filter that must be cleaned (only if the washable type) or changed.
- The filter is the incorrect type for your heating system and restricts air flow, so should be changed.
- The filter is installed in reverse, a concern that can be inspected by looking for the arrows on the filter frame that show correct installation direction with the flow of air.
- Air ducts are dripping, sometimes producing telltale whistling sounds, and it is time to have them sealed as recommended by Energy Star.
9. The Furnace Makes Loud Noises.
A loud heating system is usually the outcome of:.
- The heater being a single-stage model 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 need to be replaced.
- A leakage in the heating system cabinet, sheet metal plenum or ductwork near the furnace that need to be tightened.
- An unclean filter, which can also trigger whistling.
10. The Heating System Leaks when A/C 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 heater are usually triggered by:.
- A very dirty filter that need to be washed, if washable, or changed.
- A dead rodent or bird somewhere in the system, normally a task for a professional heating system professional.
12. The CO Display Going Off.
A carbon monoxide alarm must be taken seriously. Turn the furnace off at the thermostat. Don't go into the space where the furnace lies. Open doors and windows, and go outside. Call 911 from a cell phone outside your home.
How to Choose a Gas Heating System Repair Work Expert.
Some property owners choose the most affordable repair work service in Calgary, and the results are typically bad. Cheap services are either just getting started, so do not have experience or they have a bad credibility, so need to offer inexpensive pricing to get jobs.
On the other hand, some services are overpriced. The very best method to discover quality heater repair at a reasonable cost is to get price quotes from several of the leading furnace repair business in Calgary. Meet with each, find out about their history and the experience of the service technicians that will do the work. Pick a knowledgeable heating system repair work professional with reasonable rates.
