We have a York furnace model number P3CGD12N08001B. The furnace sounds like it is going to start then a loud noise starts we have to manually shut off furnace to make it stop. Pilot light is on. Fan will move if you turn it but will not kick on when furnace comes on. Furnace is on but the fan/blower won’t come on. What is wrong with it? Does it just need to be cleaned out.
Your fan delay relay has failed and must be replaced.
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The run capacitor supplies electricity to the fan motors to help the blowers move the hot air throughout the home. When the unit is on and making noise but the motor is not turning, the issue could be that the capacitor has gone out and needs to be repaired or replaced.
Most likely, your furnace is making a clicking noise and not providing heat because your furnace`s spark igniter is trying to ignite your pilot light or burners but is failing to do so. In other words, there`s an ignition system malfunction that needs to be fixed. Otherwise, your furnace won`t start.
Homeowners often notice a popping sound when the furnace begins a cycle. This is due to warm air that hits the cold metal of the ducts, which causes expansion and produces that noise. When the popping noise is louder, your gas furnace`s burners may be dirty.
A filter inside your furnace can cause a banging sound when the furnace shuts off. A clogged filter can cause this problem, and a filter that`s not correctly in place. Extra air gets into the furnace and ductwork, causing a banging sound when it shuts off.
Banging and Popping Noises
Banging and popping sounds are normal. Often, furnaces make these sounds as the ducts expand and contract. However, if the banging and popping sounds are exceptionally loud and frequent, it could signal a problem with your furnace. Ductwork issues often cause loud bangs and pops.
Normal Furnace Sounds
Chirp – Chirping sounds are fairly common. It`s usually the natural noise of the mechanisms. Rattle – Rattling noises usually happen when the system is cooling down and it`s not generally cause for alarm. Hum – This is usually a sound that happens when the furnace burner lights.
Faulty Blower Motor
If your blower motor is experiencing some issues, you may hear a high-pitched squeal or whistling sound. You may also experience rattling and loud screeching noises. The motor blower pushes warm air out of the furnace through the ducts into your home.
A bad bearing can generate noises that range from a high-pitch squealing noise to a low-frequency thumping sound. If you suspect bad blower bearings, you should contact a qualified technician to diagnose.
Another noise that indicates furnace repair is a loud vibrating or thumping noise. Again, you should call a professional to get your heating system checked if you hear this noise. The noise is usually caused when the motor becomes out of balance. The vibrating noise may also occur due to an unbalanced blower wheel.
The classic sounds of a bad wheel bearing are cyclic chirping, squealing and/or growling noise. You can also tell that the sound is related to wheel bearings if it changes in proportion to vehicle speed. The sound can get worse with every turn, or it can disappear momentarily.
You should start to get concerned if your furnace or boiler is starting to make strange sounds such as squeaking, banging, rattling, hissing, clicking, popping or other strange noises. Another furnace noise to never ignore is the constant running of your furnace blower fan.
A well-maintained furnace can last at least 15 to 20 years, but completing annual maintenance and being diligent with repairs can extend its life even longer.
If your gas furnace initiates the start cycle but does not fire up, it`s likely because of a faulty, damaged, or dirty ignitor/sensor. This is a very common furnace problem—you can try to clean the sensor and replace the ignitor.
While moisture and rust are one of the most common causes of delayed ignition in furnaces, dust and lint can also accumulate and cause problems. This can be easily remedied by having your furnace inspected and cleaned by professionals before each heating season.
All furnaces are equipped with a reset button. They are generally red or yellow and are located inside the blower compartment. The reset button is a safety feature that will shut down the furnace when a problem is detected, often a hot or overheating furnace, before it trips the circuit breaker.
The various types of vibration and sound in rolling bearings can be grouped in four main categories: structural, manufacturing, handling and other. The structural vibration consists mostly of race, click, squeal and cage noise: it can be continuous or intermittent depending on specific cases.
The symptoms of bad wheel bearings include: Noise: A humming, rumbling or growling noise that increases with acceleration or as the vehicle turns. A loud constant whining or grinding noise when the vehicle is in motion.
While it may seem like common sense, standard wear and tear is one of the leading causes of bearing failure. Eventually all bearings fail due to wear, however, excessive load, vibration or force can cause a bearing to wear out long before it should. Most of this excess force is caused by improper installation.
Noise in a bearing is caused by a number of factors that increase vibration. Rough or damaged balls or raceways, poor ball/raceway roundness, contamination inside the bearing, inadequate lubrication, incorrect shaft or housing tolerances and incorrect radial play can all contribute to noise.
A very common cause of furnaces not working properly is dirty or clogged filters. This could be especially true if you have pets or a large number of people in your household. It is important to regularly change your furnace filters to maintain both your furnace system and your home`s air quality.