Don't Just Fix It, Improve It!
All Apple HomePod repairs include my signature maintenance items. As I find more common faults, they will be added.
1: DC filters are always replaced. These are the leading cause of bass issues and/or Death Farts. Even though all ceramic capacitors naturally decay every 5-15 years (depending on use,) I found these failing as early as a year after the HomePod's original production run, and was the catalyst for a dedicated "maintenance" service.
2: SB Diodes dated 1746k-1748k are replaced. These are the leading cause of no power, and is permanently fixed / prevented with our high quality, higher rated replacements.
3: The foam subwoofer gasket can break down over time and become prone to failure, or a lazier bass response. These are replaced with a new rubber nitrile gasket. This results in a tighter, and longer lasting bass response.
4: The mesh can allow a significant amount of dust to build up around the subwoofer, and main board. Don't worry about breaking out the air compressor, I'll give it a thorough blast to blow the dust away, and briefly wiped down, with options for deeper cleaning and cosmetic fix-ups and customization.