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: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

Air conditioner blowing warm humid air, I opened face and

Customer Question

air conditioner blowing warm humid air, I opened face and found the filter glued to the interior with ice.
Submitted: 3 months ago.
Category: HVAC
Expert:  Airheatman replied 3 months ago.

1. Is indoor blower running? If so system may be low on refrigerant or filter and or coil ma be dirty.

Icing can be caused by a number of issues:

1.Low refrigerant charge

2. Dirty ac filter

3.Indoor fan not coming on

4.Indoor blower not moving enough air acrsoss indoor coil

5.Contactors burned together in outdoor unit causing outdoor to keep running after indoor blower stops.

6.Blocked return or ductwork causing restricted air flow

7.Dity indoor coil

Give me as much information as you can about what is happening and if any of above are noticeable and we will go from here.


Related HVAC Questions