Troubleshooting Advent Air Conditioner Running But Not Blowing Cold Air

Updated 02/17/2026 | Published 06/10/2024

Products Featured in This Question

Advent Air Diagnostic Kit for RV Air Conditioners

(6)

$166.27

Question:

We are looking to replace this unit ? It’s running but not cold

asked by: Kathleen A

Expert Reply:

Hey Kathleen, thanks for reaching out!

If your Advent Air Low Profile RV Air Conditioner for Dometic Setup # ASA86YR isn't pushing out cold air then I recommend making sure cold air isn't blowing directly on the thermostat (so it thinks the RV is cooler than it is), and checking to see if the coils are freezing up.

We also sell the Advent Air Diagnostic Kit for RV Air Conditioners # ACTF but this is only really useful if you either plan on only having Advent AC units or you troubleshoot a lot of them. I recommend just having an HVAC guy come out and see what's going wrong with it over buying the Diagnostic Kit for the everyday user.

This AC unit does have a 2-Year Warranty on it so if you find that it truly is malfunctioning then I recommend taking advantage of the warranty.

expert reply by: Jon G

Jesse M.

2/17/2026

Hey Kathleen, did you end up finding out what was causing your Advent Air unit to stop cooling properly? Knowing what fixed it could really help others dealing with the same issue.