When we run the heat pump we are getting a musty odor. Have seen this discussed before. Was wondering if a 50-50 mix of bleach and water sprayedon the cores would be a solution, or use a vinegar sol...
I am in the a/c industry and have had some luck with a product called Odorgone which you can purchase on line. As for chlorine products, that would be bad. Your coils have aluminum fins and clorine and aluminum don't play together well. The problem is usually more pronounced when changing from heat to cool. Cleaning the indoor coil will help a lot but the odor should subside as we get into the summer months and don't use the heat as often