Heater Repair: Leading Twelve Furnace Issues and Repairing How to Guide

Posted by Nelia on January 31st, 2021

A good gas furnace fixing guide helps you in determining what is wrong with the furnace based on its symptoms. That's what we do here with clear, uncomplicated information.

Fixing Common Gas Furnace Issues

Every year, countless Calgary homeowners ask, "What's wrong with my gas heater?" If you're in that circumstance, this guide will arm you with information before you call a heating system company. Knowledge is security versus being benefited from-- though the majority of repair work experts have sound ethics.

Keep in mind: This guide covers the most common issues, particularly those most property owners can quickly check with no tools or standard tools such as screwdrivers and a multimeter.

1. The Furnace Will Not Start

If nothing happens when the thermostat is set above the house's existing temperature, 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 just requires to be switched on, though the heater may have a brief delay before beginning

- The circuit breaker is off, and if the circuit continues to trip after it is turned back on, there is likely a wiring brief in the heating system

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

- The thermostat isn't working, and this is often brought on by a wire coming loose, so check the electrical wiring connections

- The thermostat needs fresh batteries, if battery-powered, or it is bad and must be replaced, an issue that can be identified using an electrical multimeter that shows if a circuit is complete

- The filter is filthy and must be replaced or cleaned, a concern that is especially real on newer heaters that are geared up to shut down if the filter isn't permitting adequate air flow, a condition that can trigger major mechanical failure

- The heater's primary circuit board/control board is bad, a problem that can be diagnosed by a HEATING AND COOLING technician is furnace replacement nothing else solves the concern

2. Furnace Blowing Cold Air

If the heating system won't produce heat, you can inspect to see if it is getting power by moving the fan switch from the "Automobile" position to the "On" position. If the fan comes on, then the heating system is getting power. The most likely issues then are:

- The gas is turned off, so inspect the gas dick near the heater 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 must be replaced

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

3. The Draft Motor Runs, Furnace Will Not Start

The draft motor is likewise called the inducer motor. It pulls hot combustion gases through the furnace 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 actually stopped working and must be changed

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

- One of the problems discussed above with gas, gas valve and ignitor should be addressed

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 assist you in repairing draft motor issues and what is causing them.

5. The Flame Begins, however the Heating system Shuts Down

If the burner begins making heat but soon shuts down without warming your house, the flame sensing unit isn't working. If the sensing unit has rust on it, sanding it may work, though replacing it is a longer-lasting repair.

6. The Blower Will Not Shut Off

If the blower motor runs all the time, there are three typical issues:

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

- 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 should be changed.

- The thermostat likewise has contacts that manage power to the furnace, and they can be worn, so the thermostat needs to be replaced.

7. Why Does the Furnace Keep Shutting Down?

If your heater burner lights however the furnace quickly shuts down, there are a few common issues that may trigger this:.

- The heater filter is unclean and must be cleaned or replaced.

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

- The thermostat is failing.

- While these are common, there are a number of other possible causes finest diagnosed by a heater technician. This video gives in-depth protection to the problem of heater short-cycling.

8. The Furnace Runs however Can't Keep your house Warm.

If your heating system is correctly sized for your house, then it should keep your home warm even in extreme cold. If it runs continuously but isn't providing enough 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 heater and restricts air flow, so ought to be replaced.

- The filter is set up in reverse, an issue that can be examined by looking for the arrows on the filter frame that show appropriate installation direction with the circulation of air.

- Air ducts are dripping, often producing obvious whistling sounds, and it is time to have them sealed as suggested by Energy Star.

9. The Heater Makes Loud Noises.

A loud heating system is most often the outcome of:.

- The heater being a single-stage design 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 should be replaced.

- A leak in the heating system cabinet, sheet metal plenum or ductwork near the heater that need to be tightened up.

- A dirty filter, which can also cause whistling.

10. The Heater Leaks when Air Conditioner is Running.

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

11. The Air Coming from the Heater Smells Bad.

Foul odors from the furnace are typically triggered by:.

- A really unclean filter that should be washed, if washable, or replaced.

- A dead rodent or bird somewhere in the system, usually a task for a professional furnace professional.

12. The CO Display Going Off.

A carbon monoxide gas alarm need to be taken seriously. Turn the furnace off at the thermostat. Do not go into the space where the heating system lies. Open doors and windows, and go outside. Call 911 from a cellular phone outside your home.

How to Choose a Gas Heating System Repair Specialist.

Some homeowners select the most inexpensive repair service in Calgary, and the outcomes are generally poor. Cheap services are either simply starting, so lack experience or they have a bad credibility, so need to provide cheap prices to get jobs.

On the other hand, some services are overpriced. The very best way to discover quality heating system repair at a reasonable rate is to get quotes from several of the leading heater repair work business in Calgary. Meet each, find out about their history and the experience of the technicians that will do the work. Choose furnace installation near me an experienced heater repair work specialist with reasonable rates.