Posted on: 21 April 2021
The furnace is a critical component of your central air conditioning, and also one that presents a serious fire hazard. It is important to know the instances in which furnace faults can wait for regular AC maintenance and which need emergency attention. A leaky gas furnace is a life-threatening hazard while rattling panels can await quarterly service. Here is how to tell how severe the damage in your furnace is and how urgently you need to contact a furnace repair service.
Rotten Egg Smell from the Furnace
Gas furnaces burn natural gas, which is odorless in its original form. Fuel processors add a smelly compound called mercaptan to help identify when it is in the air. There is a very serious problem if you smell an odor of smelly eggs coming from the furnace. There is a gas leak. You should move away from the furnace immediately. Evacuate the house and call an HVAC technician to repair the furnace.
Unusual Loud Noises from the Furnace
The furnace will usually make noises when working, but loud, unusual noises should raise an alarm. A squealing noise points to a loose fan belt. A technician can tighten the belt or replace it. Rattling noises point to loose panels. A grinding noise should worry you a bit more. It is a sign of worn motor bearings. You need an HVAC technician to repair it and avoid total motor failure.
Burning Yellow Flame Instead of Blue
A clean and efficient furnace burning assembly gives off a blue flame. The color changes when the burning assembly has a problem and the combustion is off. The flame color will change to a yellow or orange hue when the burning assembly has a problem. Inefficient combustion produces excessive carbon monoxide. It is an odorless gas that is heavier than air. It will accumulate in the house and pose a risk of respiratory poisoning. You need to call an HVAC technician to repair the burner assembly.
Lights Flicker When the Burner Switches On
Is there a flicker when the AC heater switches on? It is a pointer to an electrical fault somewhere in the system. The HVAC unit is the biggest electrical appliance in a home. Have it inspected for electrical faults and repaired promptly by an HVAC technician. Is your furnace faulty and some repairs? It is advisable to have a competent technician look at it as soon as possible. Contact a furnace repair service today to have your furnace fixed.Share