Typically with a high efficiency furnace, the condensation runs into a floor drain through condensate tubing. If this tubing becomes clogged or damaged (breaks in the line) it may cause the water to drain back to the furnace and leak out. Also, if an A/C unit is also running there is a possibility that the evaporator pan located below the coil has rusted out and is leaking.
- Rotten Egg Smell Usually an indication that you have a gas leak which should be taken care of right away. Turn off the furnace, open the windows and contact a professional to repair the leak!
- Electrical / Plastic / Metallic burning smell Usually are an indication that service is required for your heating system. Some components may be overheating, wearing out or malfunctioning due to wear and tear and age of the system. These parts should be replaced as soon as possible to prevent more costly repairs or replacement in the near future.
- If the furnace is making a loud banging noise when it turns on this could be caused by dirty burners which cause a delayed ignition. As a result the gas builds up inside the furnace and a mini explosion occurs when it ignites causing the loud bang. This explosion, if happening often, could be detrimental to the components especially the heat exchanger which could crack, this is an expensive repair. Annual maintenance service where the burners are checked and cleaned is essential!
- If the noise comes from several feet away from your furnace it could be from the expansion of the air ducts. Open more vents and check that your air filter is clean to insure the air is flowing freely throughout your home.
- A grinding or whining noise could indicate a loose or faulty fan, belt or blower motor. These parts are integral to the operation of your furnace and should be repaired as soon as possible to prolong the life and operation of your furnace.
Most commonly this is caused by the blower overworking. Dirty filters, closed air vents can cause the motor to overheat as it works harder to push the air through your heating system. Also, if your furnace shares a breaker with another appliance, check those appliances to insure that one of them has not malfunctioned causing the breaker to trip. Check the electrical panel and your filter to try and remedy this issue.
If you have tried all the above steps to get your furnace working and are not able to find the problem, contact our service technicians for a diagnostic service call. In conclusion – Prevention is better than the cure! Annual preventative maintenance can help avoid most furnace issues. Contact us to schedule your check up today!!