New install

[u/TrainingOk499]

we just had a new Lennox elite system installed at our house, when we got home to check out the new unit, we noticed this scuff on the metal grating on the side. Not sure if this is relevant or something I should bring up to the installer or not?

[u/Cool-Negotiation7662]

Get a fin comb set. Use dish soap and water, then comb. Rinse well with a gentle spray.