Remote controls the wrong device or multiple devices at once

Symptoms

• Pressing power on one remote turns on a different device too
• Volume changes on the wrong device
• Universal remote sends commands meant for another component
• Two remotes from the same brand interfere with each other

Likely causes

• CommonTwo devices sharing the same or similar factory IR codesSame-brand devices (two TVs, or a TV and DVD player) sometimes share default remote codes.
• CommonHDMI-CEC controlling multiple devices from one commandCEC deliberately lets one power command cascade to other connected devices.
• PossibleUniversal remote's device slot misconfiguredA device may have been set up under the wrong device type/slot during setup.
• PossibleDevices placed close together with overlapping line of sightBoth devices' sensors can pick up the same IR signal if positioned close together.

What to do

1. Identify whether the issue is IR-based (aim-dependent) or CEC-based (happens regardless of aim) by testing from different angles.
2. If it's CEC, turn off HDMI-CEC on the device(s) you don't want cascading power/volume commands.
3. If it's IR overlap, check each device's manual for an alternate remote code and switch one device to a different code.
4. Physically separate devices with overlapping sensors, or angle one away from direct line of sight to the other's remote.
5. On a universal remote, re-verify each device is programmed under the correct device type/slot.
6. As a last resort, use an IR-blocking shield or reposition equipment so only the intended device receives each remote's signal.

When to call a pro

Not typically needed; this is a settings and positioning issue solvable without professional help.

Safety