What Does This Error Mean?

Panasonic TV not turning on is most often fixed by unplugging the TV from the wall for 60 seconds and reconnecting — this clears the TV's internal processor and resolves most startup failures. If the standby LED is red but the TV will not start, the power supply or main board may have a fault.

Affected Models

Panasonic TX series (LED/LCD)
Panasonic OLED TV (LZ/MZ/LX series)
Panasonic Smart TV (My Home Screen)

Common Causes

Internal software hang requiring a power reset
Power supply board failure causing no start despite receiving standby power
Main board failure
Remote control battery flat or IR sensor blocked
Power strip or surge protector failing to supply power

How to Fix It

Perform a full power reset.

Unplug the Panasonic TV power cord from the wall socket — not just the switch on a power strip. Wait a full 60 seconds before plugging back in. This discharges the internal capacitors and clears the processor state — resolves most startup hangs and software freezes.
Try the power button on the TV body.

Remote control battery failure or a blocked IR sensor can make it appear the TV is unresponsive. Locate the power button on the Panasonic TV body itself — usually on the bottom edge or side panel. If the TV turns on with the body button, replace the remote batteries and confirm there is nothing blocking the TV's IR sensor.
Count the standby LED blink code.

If the Panasonic TV standby LED is blinking in a repeating pattern when the TV will not start, count the number of blinks per group. Panasonic uses blink codes to indicate specific hardware faults — 7 blinks typically indicates a power supply fault, other counts indicate main board or panel issues. Search 'Panasonic TV [your model] blink code [number] times' to identify the specific fault.
Check the power supply source.

Plug the Panasonic TV directly into a wall outlet — bypassing any surge protector, power strip, or extension lead. Surge protectors can fail in protection mode after a power spike, blocking power to the TV entirely. Also try a different wall outlet in case the original outlet has failed.
Perform a factory reset via the hidden menu.

If the Panasonic TV powers up briefly then switches off, or gets stuck on the Panasonic logo, a corrupted firmware may be the cause. Some Panasonic models allow a factory reset by holding the OK button on the TV while plugging in the power cord. If the TV has a USB port, Panasonic provides firmware recovery files for some models at panasonic.com/uk/support — check your model's support page.

When to Call a Professional

If the Panasonic TV standby LED blinks a specific number of times repeatedly, this is a self-diagnostic blink code indicating a hardware fault. Count the blinks and search for your model's blink code to identify the failing board.