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 Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

I have a Trane XE 78. I see a filter at the filter door and

Customer Question

I have a Trane XE 78. I see a filter at the filter door and another filter inside near the furnace opening, is this normal?
Submitted: 6 years ago.
Category: HVAC
Expert:  Mark Henley replied 6 years ago.

Mark Henley :

HI, no two filters in series is not typical and could cause airflow restriction, I would remove one of them, if these two filters are not in series and you have two return ducts then it would be ok thanks Mark

JACUSTOMER-dqhzylbb- :

This answer along with the others did not fix my issue. I have canceled my subscription and will need to call a local repairman. Thanks! It was worth the try.

Mark Henley :

ok, thanks