I had a new Carrier System installed by a trusted local company 2yrs ago, it is working Heat/Cool fine and no complaints. Removed the access panel and found what you can see in the attached picture. The drain is not clogged and never has been in the 2years since the install. Is this amount moisture and rust on the coils normal at this early age ? . I usually try to take care of rust when spotted before its a bigger problem. Wanted to check before I call my service company back - they just came out to service both units.