How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Matthew Your Own Question
Matthew
Matthew, HVAC Technician
Category: HVAC
Satisfied Customers: 2014
Experience:  14 years experience in the HVAC field of service, installation, Manual J & D calculations
6927568
Type Your HVAC Question Here...
Matthew is online now
A new question is answered every 9 seconds

I HAVE A MODEL FV4BNF003 AIR HANDLER, INSTALLED 5-1/2 YEARS

Resolved Question:

I HAVE A MODEL FV4BNF003 AIR HANDLER, INSTALLED 5-1/2 YEARS AGO. THERE ARE NO PROBLEMS WITH THE COOLING, BUT I AM GETTING FLOODED BY THE CONDENSATE WHICH DRIPS DOWN FROM THE SLANT COIL RATHER THAN COLLECTING IN THE TROUGH AT THE LOWER EDGE WHICH IS PIPED TO THE SEWER. AFTER FLOODING THE CARPET I PLACED A PLASTIC CONTAINER UNDER THE SLANT COIL AND AM COLLECTING ABOUT 5 QTS A DAY. I TRIED CLEANING THE COIL WITH DAWN DETERGENT AND RINSING, BUT THE CONDENSATE STILL DRIPS. ANY IDEAS AS TO WHAT IS CAUSING THIS AND WHAT NEEDS TO BE DONE TO CORRECT IT ?
HOWARD
Submitted: 6 years ago.
Category: HVAC
Expert:  Matthew replied 6 years ago.
Chat Conversation Started
Matthew :

Normally this is caused by dirt and debris built up between the fins of the coil on the underside. It causes the water to stop there and drip down instead of making it's way to the pan. You would need a wire brush or fin comb to get in there and really clean it out. You have to be careful not to bend these fins though or it will cause the airflow to be restricted and you will have even more problems.

Matthew :

Another thing that could cause this is if there isn't a PVC trap installed on the drain line just outside the furnace cabinet. It is a horse shoe looking thing made out of 3/4" pvc. If this wasn't installed on the air handler drain it would be leaking all the time and is odd if this is the cause that it just started doing it 5 years later.

Customer:

The unit has a pvc trap on the condensate drain line just outside the air handler cabinet but when I remove an access cap I see very little liquid moving.

Customer:

I will try to clean and rinse the fins of the coil again. I used a 3" paint brush previously to do both the top and underside and there was a lot of dirt removed, but apparently it did not cause enough dirt to be removed between the fins. Where would you suggest I can find a fin comb ?

Matthew and 4 other HVAC Specialists are ready to help you

Related HVAC Questions