Product review (5 stars): No more 'jackhammer' sound!
The fridge suddenly began making loud jackhammer noises when the ice maker filled or the water dispenser was used. At first, thought it was a bad ice maker. Then considered an ice build-up in the fans. Almost spent $400 on a plumber, but thought I would change the filter before trying anything else. Easy to replace, and I noticed how much heavier the old filter seemed. My guess is that the old filter was clogged, so water pressure was poor and causing the noise due to air in the line. Noise stopped immediately and all is OK now. Easy, cost-effective fix!