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- Smart TV
Overcurrent error message
Panasonic Smart TV Overcurrent error message: USB port fault
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
High
Quick answer
On Panasonic Smart TVs, when Overcurrent error message appears on screen, a USB port has detected excessive current draw or a short circuit. Remove the connected USB device, turn the TV off and back on, and check that no foreign objects are inside the USB port.
Safety first
Stop and check this first
- Always remove the mains plug from the wall socket before inspecting or cleaning the TV, never touch the pins inside the USB connector or insert metal objects, and never remove the rear cover of the television.
- Do not remove a USB device while the TV is accessing or recording data, and always keep alignment straight and insert the plug in the correct direction to avoid damaging the device or the TV port.
Safe checks you can perform
- Remove the connected USB device and turn the TV off and back on
- Check that no foreign objects are inside the USB port
- Connect supported USB devices directly and power USB HDDs from the mains
Leave these tasks to a qualified professional
- Do not attempt this professional task: USB power delivery check by an authorised Panasonic technician
- Do not attempt this professional task: USB port inspection by your local Panasonic dealer or authorised service centre
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
USB power delivery check by an authorised Panasonic technician
What they doWhen the error recurs with compatible USB devices within the rated limits (DC 5 V 500 mA on USB 1/3 and 900 mA on USB 2 on Z95BP series), an authorised Panasonic technician tests the USB power circuit.
They must show youthe Device & Software > TV Self Test result alongside the model and serial label.
In writingthe checks carried out on USB 1, USB 2, and USB 3, whether software was updated or reset, and any part replaced.
USB port inspection by your local Panasonic dealer or authorised service centre
What they doIf Overcurrent error message continues to appear with all USB devices removed or if a port is physically obstructed, an authorised Panasonic service centre inspects the USB terminals.
They must show youthe model and serial number label on the TV, the current firmware version under Device & Software > About > Panasonic System Information, and a photo of the on-screen message.
In writingthe inspection findings for the USB terminals, what tests were performed, and any connector or board replaced.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Remove the connected USB device and turn the TV off and back on
- Who:
- you, at the television.
- How:
- pull any connected USB device, hub, or cable straight out of the TV's USB ports. As instructed in the eHELP, turn the TV off with the Mains Power On / Off switch (or select Device & Software > Restart) and then turn it on again.
- Result that matters:
- checking whether the Overcurrent error message clears once the USB device is removed.
- If the message disappears when the TV turns back on:
- the removed USB device or cable caused the overcurrent condition.
- If the error message still appears with nothing plugged into USB:
- proceed to inspect the USB ports with the TV unplugged.
- Evidence to keep:
- the model of the USB device that was connected and which USB terminal it was using.
Evidence: Panasonic TV eHELP Z95 Z85 W95 Series (English) · Panasonic TV eHELP EUIDTV22M (English)
Check that no foreign objects are inside the USB port
- Who:
- you, with the TV switched off and unplugged from the mains socket.
- How:
- first remove the mains plug from the wall socket, then visually inspect the inside of each USB terminal on the TV to confirm that no foreign objects or bent pins are inside the USB port, without touching the pins or inserting metal tools.
- Result that matters:
- ruling out debris or physical contact issues inside the USB receptacle.
- If you see a foreign object or damaged pins:
- leave the port empty and contact an authorised Panasonic service centre.
- If all USB ports look clean and undamaged:
- test a compatible USB flash drive connected directly.
- Evidence to keep:
- a photo of the USB port condition and of the on-screen message if it persists.
Evidence: Panasonic TV eHELP Z95 Z85 W95 Series (English) · Panasonic TV eAyuda series Z95 Z85 W95 (Español) · Panasonic TV eHELP EUIDTV22M (English)
Connect supported USB devices directly and power USB HDDs from the mains
- Who:
- you.
- How:
- plug your USB flash memory straight into the TV's USB port without a USB hub or USB card reader. If connecting a USB HDD, use the USB 2 port (up to 900 mA on Z95BP models) and connect the USB HDD to a mains socket as required by the eHELP.
- Result that matters:
- operating the USB storage device within the rated current of the terminal.
- If it works when connected directly or powered from the mains:
- the hub or unpowered drive was drawing too much current.
- If the overcurrent message returns:
- disconnect the device and contact your local Panasonic dealer or authorised service centre.
- Evidence to keep:
- a list of the USB terminals tested (USB 1, USB 2, USB 3) and the power rating of the device.
Evidence: Owner’s Manual OLED TV Model No. TV-55Z95BP TV-65Z95BP TV-77Z95BP · Panasonic TV eHELP Z95 Z85 W95 Series (English) · Panasonic TV eHELP EUIDTV22M (English)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- TVs
- Brand
- Panasonic
- Product type
- Smart TV
Known code variants
- Aparece un mensaje de error de sobrecorriente
- error de sobrecorriente en puerto USB Panasonic
- mensaje de error de sobrecorriente Panasonic TV
- Overcurrent error message appears
- overcurrent message on Panasonic TV screen
- Panasonic TV overcurrent error message
- sobrecorriente USB en Smart TV Panasonic
- USB overcurrent error Panasonic Smart TV
What it means
In the official Panasonic eHELP for the Z95, Z85, and W95 series, the European eHELP guide EUIDTV22M, and the Owner's Manual for TV-55Z95BP, TV-65Z95BP, and TV-77Z95BP OLED models (other models may differ), the troubleshooting entry Overcurrent error message appears indicates that a USB terminal on the television has detected an electrical load exceeding its rating or an abnormal contact. This message alone never proves that an internal circuit board is faulty: it is usually triggered by a connected USB device drawing too much power, an unpowered external hard drive, or a foreign object inside the USB port.
Warnings and stop conditions
- Higheditorial warning
Always remove the mains plug from the wall socket before inspecting or cleaning the TV, never touch the pins inside the USB connector or insert metal objects, and never remove the rear cover of the television.
Evidence: Owner’s Manual OLED TV Model No. TV-55Z95BP TV-65Z95BP TV-77Z95BP · Panasonic TV eHELP Z95 Z85 W95 Series (English) · Panasonic TV eHELP EUIDTV22M (English)
- Mediumeditorial warning
Do not remove a USB device while the TV is accessing or recording data, and always keep alignment straight and insert the plug in the correct direction to avoid damaging the device or the TV port.
Evidence: Panasonic TV eHELP EUIDTV22M (English)
Symptoms and causes
Probable causes · in order
- Connected USB device exceeding the port current limit or failingCommon
The eHELP states that the connected USB device may cause this error; on Z95BP series models, USB 1 and USB 3 (USB 2.0) supply DC 5 V up to 500 mA max while USB 2 (USB 3.0) supplies DC 5 V up to 900 mA max, and USB HDDs used for recording must be connected to a mains socket.
Evidence: Owner’s Manual OLED TV Model No. TV-55Z95BP TV-65Z95BP TV-77Z95BP · Panasonic TV eHELP EUIDTV22M (English)
- Foreign object, debris, or misaligned plug inside the USB portPossible
Both the Z95/Z85/W95 series eHELP and the European eHELP instruct checking that foreign objects are not inside the USB port and warn that inserting a USB plug in the wrong direction can damage the device or TV.
Evidence: Panasonic TV eHELP Z95 Z85 W95 Series (English) · Panasonic TV eAyuda series Z95 Z85 W95 (Español) · Panasonic TV eHELP EUIDTV22M (English)
- Unsupported USB hub, USB card reader, or multiple identical devicesPossible
Panasonic eHELP notes that some USB devices or USB hubs may not be used with the TV, USB card readers cannot be connected, and devices should be plugged directly into the TV's USB port.
Evidence: Panasonic TV eHELP Z95 Z85 W95 Series (English) · Panasonic TV eHELP EUIDTV22M (English)
Virtual technician
Does Overcurrent error message still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Owner’s Manual OLED TV Model No. TV-55Z95BP TV-65Z95BP TV-77Z95BP
Panasonic · 2025 · manual
- 2
Panasonic TV eHELP Z95 Z85 W95 Series (English)
Panasonic · 2024 · official_doc
- 3
Panasonic TV eAyuda series Z95 Z85 W95 (Español)
Panasonic · 2024 · official_doc
- 4
Panasonic TV eHELP EUIDTV22M (English)
Panasonic · 2022 · official_doc
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