Symptoms
- Buttons do nothing
- Remote works up close but not from the couch
- Volume works but source buttons don't (or vice versa)
- Remote worked yesterday, dead today
Likely causes
- CommonDead or low batteriesThe most common and easiest cause to rule out first.
- CommonBlocked or off-angle line of sight to the receiver's IR sensorFurniture, a cabinet door, or the wrong angle can block the signal.
- PossibleRemote set to the wrong device mode (universal remotes)A universal or TV remote may be sending commands meant for a different device.
- PossibleIR interference from other electronics or lightingSome LED or fluorescent lighting can interfere with infrared signals.
- Less commonFailed IR receiver on the unitMore likely if a phone camera confirms the remote itself is transmitting.
What to do
- Replace the batteries and confirm correct polarity.
- Clear any obstruction between the remote and the receiver's front panel sensor.
- If using a universal or TV remote, confirm it's switched to the receiver/AV mode before pressing buttons.
- Use a phone camera to check whether the remote's IR light flashes when you press a button.
- Try the receiver's own front-panel buttons to confirm the unit responds normally to input.
- If the remote's IR light doesn't flash on camera, replace the remote; if it does flash but the receiver doesn't respond, the receiver's sensor may be at fault.
Tools and parts
- Fresh batteries
- Phone camera (for IR check)
Replacement AV receiver remoteSearch: “[receiver model] replacement remote”
When to call a pro
If the receiver's own front panel controls also stop responding, its control board needs professional service.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.