Heater Repair Work: Leading 12 Heating System Issues and Repairing Guide

Posted by Nelia on February 1st, 2021

A great gas furnace fixing guide assists you in identifying what is wrong with the heater based on its signs. That's what we do here with clear, straightforward info.

Repairing Common Gas Heating System Issues

Every year, countless Calgary homeowners ask, "What's wrong with my gas heating system?" If you remain in that circumstance, this guide will arm you with details before you call a heater company. Understanding is protection versus being benefited from-- though a lot of repair work experts have sound principles.

Keep in mind: This guide covers the most common problems, specifically 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 takes place when the thermostat is set above the house's current temperature level, the most likely causes are these:

- The heating system switch (located on or near the heating system, appears like a common light switch) is switched off and just requires to be turned on, though the heater may have a brief hold-up before starting

- The circuit breaker is off, and if the circuit continues to journey after it is turned back on, there is likely a circuitry brief in the furnace

- The thermostat isn't set to "heat," which is easy to check and treat

- The thermostat isn't working, and this is often triggered by a wire coming loose, so inspect the circuitry connections

- The thermostat requires fresh batteries, if battery-powered, or it is bad and must be changed, a concern that can be detected utilizing an electrical multimeter that shows if a circuit is complete

- The filter is unclean and must be replaced or cleaned up, a problem that is especially true on newer heaters that are equipped to shut down if the filter isn't enabling sufficient air circulation, a condition that can cause severe mechanical failure

- The furnace's primary circuit board/control board is bad, an issue that can be identified by a HVAC service technician is absolutely nothing else solves the problem

2. Furnace Blowing Cold Air

If the heating system will not produce heat, you can inspect to see if it is getting power by moving the fan switch from the "Vehicle" position to the "On" position. If the fan comes on, then the heater is getting power. The most likely concerns then are:

- The gas is shut off, so check the gas dick near the furnace 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 need to be changed

- The draft motor isn't working or the fresh-air intake is blocked, maybe by snow or particles, and requires to be cleared

3. The Draft Motor Runs, Heating System Won't 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 starts and then the heating system shuts down, the cause might be:

- The motor or the board that manages it has stopped working and should be changed

- A blocked air intake or blocked exhaust chimney (snow, particles and bird's nests prevail causes) must be cleared

- One of the issues discussed above with gas, gas valve and ignitor must be dealt with

4. The Draft Motor Will Not Start

The problem, 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 problems and what is triggering them.

5. The Flame Begins, however the Heater Shuts Down

If the burner begins making heat but quickly shuts off without warming your house, the flame sensing unit isn't working. If the sensor has deterioration on it, sanding it may 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 three typical problems:

- The fan switch on the thermostat is set to "on" rather than "automobile".

- Relays in the control panel are stuck in the closed position, so the blower is getting a consistent supply of electrical power, and the control board need to be replaced.

- The thermostat also has contacts that manage power to the heating system, and they can be worn, so the thermostat should be replaced.

7. Why Does the Heating System Keep Shutting Down?

If your heater burner lights however the heater soon shuts down, there are a couple of typical issues that might trigger this:.

- The heater filter is filthy and should be cleaned or changed.

- The flame sensor isn't working and must be replaced.

- The thermostat is failing.

- While these are common, there are several other possible causes finest diagnosed by a furnace professional. This video offers in-depth protection to the problem of furnace short-cycling.

8. The Heater Runs but Can't Keep the House Warm.

If your heating system is correctly sized for your home, then it should keep your house warm even in extreme cold. If it runs continuously but isn't supplying adequate heat, the likely causes are:.

- A filthy filter that must be washed (just if the washable type) or changed.

- The filter is the incorrect type for your heating system and restricts airflow, so need to be replaced.

- The filter is installed in reverse, an issue that can be examined by looking for the arrows on the filter frame that reveal appropriate setup direction with the flow of air.

- Air ducts are leaking, in some cases producing obvious whistling sounds, and it is time to have them sealed as suggested by Energy Star.

9. The Heating System Makes Loud Noises.

A noisy heating system is usually the outcome of:.

- The heater being a single-stage design that operates 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 heater that need to be tightened.

- A dirty filter, which can likewise trigger whistling.

10. The Heating System Leaks when AC is Running.

Water condenses on the evaporator coil in your heating system, and if it leaks onto the floor, the concern is more than likely a blocked drain pan or drain line.

11. The Air Coming from the Furnace Smells Bad.

Foul odors from the furnace are usually triggered by:.

- A very filthy filter that ought to be cleaned, if washable, or changed.

- A dead rodent or bird someplace in the system, typically a job for an expert furnace service technician.

12. The CO Screen Going Off.

A carbon monoxide alarm should be taken seriously. Turn the heating system off at the thermostat. Do not enter into the room where the furnace lies. Open doors and windows, and go outside. Call 911 from a cellular phone outside your house.

How to Select a Gas Heating System Repair hvac companies Work Specialist.

Some homeowners pick the cheapest repair service in Calgary, and the results are typically poor. Cheap services are either just starting, so lack experience or they hvac heating and cooling have a bad track record, so need to give low-cost prices to get jobs.

On the other hand, some services are overpriced. The best way to find quality heater repair at a fair price is to get quotes from numerous of the top heating system repair work business in Calgary. Meet each, learn more about their history and the experience of the technicians that will do the work. Choose a knowledgeable heater repair work contractor with sensible rates.