TVs

Power error

Internal power error; service required.

Lamp near end of life

The lamp is near or at its replacement time and should be replaced soon.

Lamp problem

The lamp is burned out, broken, not seated, or the lamp cover is open.

Projector running too hot

The projector is warning of high internal temperature; it keeps running but may shut down.

Fan or sensor fault

Internal fan or temperature-sensor error; not user-fixable.

Overheated and shut off

The projector shut itself off on over-temperature.

Power/backlight fault (blink counts unreliable)

A short blink at power-on/off or during a USB update is normal; continuous blinking with no picture points to power board, backlight or main board. Count tables vary and are not reliable.

Network / DNS error in app

Third-party guides describe -105 as a name-resolution (DNS) failure while Wi-Fi is still connected; another lists 105 as 'no IP address'. Not confirmed by LG.

Network error (meaning disputed)

Reported variously as Wi-Fi not connected, no IP address, or DNS failure.

Network connection error

The TV cannot complete its network connection: it may reach the router but fail at DNS/internet, or the Wi-Fi link is weak.

Remote lost pairing or low battery

A flashing light on the Magic Remote usually means the remote lost its link to the TV or the batteries are low.

DNS failure

The TV reaches the router but cannot resolve names, so apps and the store fail.

Router OK, no internet

The local network and DNS path work up to the gateway but the internet itself is unreachable.

TV not reaching the router

The network status screen shows the break between the TV and the router: a local link problem (cable, Wi-Fi, router).

Power-on failure

The set tries to start and shuts down; forum reports most often trace it to the power supply, sometimes after a surge.

Board communication error (reported)

One repair site ties 13 blinks to a communication error between the main (A) board and other boards. Single source; not confirmed.

Protection shutdown (reported)

Repair sites and a plasma forum tie a 14-blink pattern to a protection circuit fault. Panasonic publishes no consumer chart; confirm with model service data.

HDCP error (reported)

HDCP (HDMI copy-protection) handshake failed between the Roku and the TV, usually shown with a purple screen; Roku support staff identify 020 as an HDCP error.

Wireless receiver not detected

The stick's wireless receiver lives in its USB power cable; the error appears when that cable is not connected to the stick and to power.

HDMI copy-protection (HDCP) failure

Something in the HDMI chain (TV input, AVR, soundbar, switch or cable) did not pass the HDCP handshake that protected content needs. 4K/HDR needs HDCP 2.2.

Can't reach the update server

The device tried to check for or download a software update and could not reach Roku's update server.

Connection too weak for update

The update could not run because the network connection is too weak.

Software update can't download

The update download failed, usually from an unstable network connection.

Update failed / timed out

Reported as software update failure (004) and connection timeout (005).

Connected to router, no internet

The TV joined the router but cannot reach the internet.

Cannot connect to Roku (setup update failed)

The initial software update during setup failed because the device could not reach Roku's software update server.

Wired network error

Problem with the Ethernet connection.

Wi-Fi connection failed

Could not join the Wi-Fi network; Roku lists a wrong Wi-Fi password as the cause to check first.

Joined the router but no internet

Roku groups these under 'can't connect to the internet': the TV reaches the local network but not the internet.

Weak Wi-Fi signal

The TV is not getting a strong enough wireless signal from the router to connect.

Wi-Fi connection failed (often weak signal)

TCL lists it as signal too weak to connect; Roku community groups it with general can't-connect errors.

Wrong Wi-Fi password or router blocking

The password was rejected or the router is blocking the TV (for example MAC filtering).

Wireless connection failed (signal)

Wi-Fi connection failure. TCL ties it to weak signal; Roku lists it under 'can't connect to the internet'.

Weak signal / can't reach internet

Roku lists these in both the weak-signal and can't-connect groups: poor wireless link preventing internet access.

Connection lost while launching

Network dropped while opening a channel or app; Roku groups it with weak Wi-Fi signal errors.

Poor wireless signal

Wi-Fi signal too weak.

Internet too slow

Available bandwidth is too low for reliable streaming.

Network/app connection error

A connection error treated like 102 (TV cannot reach the service).

Cannot reach Smart Hub server

The TV failed to connect to Samsung's Smart Hub server, usually a network, router, DNS or firmware issue.

No internet for Smart Hub

The TV does not have internet access, so Smart Hub cannot work.

Unable to connect to server (reported)

Owners report 116 when Smart Hub and the app store cannot reach Samsung's server. No official Samsung definition found.

App download failed (reported)

Owners report 189 when downloading apps, with a 'try again later' message. No official Samsung definition found.

Smart Hub error (reported)

Reported on Smart Hub; Samsung's general Smart Hub fix (reset Smart Hub, update firmware) is the usual first step. No official meaning found.

Bluetooth link to TV dropped

Samsung's remote LED guide says a double blink after a key press means the Bluetooth connection is lost; IR keys like volume may still work but voice/smart keys won't.

Power fault / hardware fault

A flashing standby LED with no power-on indicates a power problem; if it persists after a power cycle on a good outlet, it is a hardware fault (most often the power supply board).

Subwoofer pairing failed

During ID SET pairing the sub's blue LED blinks; if it keeps blinking after the soundbar powers on, pairing did not complete.

Power supply protection

The set has shut down on a power-supply fault, often a shorted or failed section of the power board.

Main board / board communication fault

Sources disagree: reported as a main-board short or loss of communication between power and main boards.

Backlight driver / power or main board

Sources conflict: backlight inverter/power board in some lists, main board in others.

T-con / panel fault

The timing controller (T-con) board or the panel is reported faulty.

Backlight fault

The backlight circuit has failed: LED strips, LED driver on the power board, or related main-board section.

Over-temperature

Reported as overheating or a temperature-sensor fault.

Audio circuit fault

Reported as a fault in the speaker or audio amplifier circuit.

SmartCast cannot reach the internet

Reported as SmartCast losing its internet connection; Vizio does not publish an official definition.

Failed power-on self-test

The TV starts, fails its power-on check and shuts off; forums point most often at the power board or loose internal cables.