Symptoms
- One room/zone has no sound while others work fine
- Zone shows as 'on' in the app but stays silent
- In-wall volume control knob for that zone doesn't seem to do anything
- Sound worked before recent wiring or renovation work
Likely causes
- CommonZone volume turned down or muted at the wall-mounted volume controlIn-wall volume controls are easy to accidentally leave at zero.
- CommonZone not selected/enabled on the multi-room amplifier or appWhole-home audio systems require each zone to be actively turned on for it to play.
- PossibleSpeaker wire disconnected or damaged, often behind drywallWiring in walls can be damaged during renovations or simply come loose at a junction.
- PossibleFailed amplifier channel for that zoneA dedicated amp channel per zone can fail independently.
- Less commonBlown speaker driver in the ceiling/wall speakerWater damage (common in bathroom/outdoor speakers) or age can damage the driver.
What to do
- Check the in-wall volume control for that zone and confirm it's not turned down or set to off.
- In the multi-room audio app or amplifier, confirm that zone is turned on and assigned to the correct source.
- Swap that zone's amplifier channel with a working zone's channel (if accessible) to see if the fault follows the channel.
- Check accessible speaker wire connections at the amplifier for that zone.
- If the speakers are in a bathroom or outdoor area, check for signs of water damage or corrosion.
- If wiring runs through recently renovated walls, have it tested for continuity, since drywall work can nick wires.
Tools and parts
- Wire continuity tester (optional)
In-ceiling speakerSearch: “in-ceiling speaker replacement”
When to call a pro
If wiring inside a wall is suspected damaged or a speaker needs replacement inside a ceiling, a low-voltage installer or audio technician can access and fix it properly.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.