Morning, Stephen. Hope this post finds you well.
To answer your question, “How much damage is to much damage to condenser fins?” I would simply report on the type of damage and damage percentile. From there refer to the professional.
Heavily bent or damaged condenser or evaporator coil fins restrict air flow. Efficiency is overall affected with much damage although many units keep on functioning heating and cooling.
By the looks of it, A: A small dog marked it’s spot. B: Top center ding. Stone damage from the lawn mower. C: Lower fin marks. Lawn mower contact/mechanical damage.
Observation: Very small percentage of bent cooling fins. Light mechanical damage to cooling fins.
No adverse conditions observed.
Recommend: A licensed HVAC contractor maintenance the HVAC unit next cooling or heating season. Typical maintenance item.
*Note: Bent condenser and evaporator coil fins can be been successfully straightened with radiator fin comb kits.
PS: Allstar ALL10680 Radiator Fin Comb Kit
- Kit includes fin tools that are hand held to straighten and repair damaged fins in most radiators, coolers, and air conditioning condensers
- Includes six interchangeable heads of 13, 15, 16, 17, 18 and 20 fins per inch
- It has a 90 day limited warranty
- Sold as one complete kit