📺Television

E04

TCL · 6-Series R655 Mini-LED

TCL 6-Series R655 Mini-LED E04 Error Fix: Power Supply Voltage Out of Range

This error indicates the power supply output voltage is outside the specified range, possibly due to a failing power board or unstable mains power. It can cause the TV to shut off unexpectedly or fail to power on.

critical2 fixes available

Quick Answer

Error E04 on the TCL 6-Series R655 Mini-LED means: Power Supply Voltage Out of Range. The top-ranked community fix is “Replace Power Supply Board” (hard difficulty, ~90 min, DIY cost: $60-$120). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · tv

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

Root Cause Analysis

Electrical Fault → Power Supply FaultPrimary

Motor Failure → Capacitor Failed

When to Call a Professional

While many tv repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $180-$300.

Other TCL Models with Error E04

4-Series S446 4K

tv · 2 fixes

5-Series S546 QLED

tv · 2 fixes

Alto 8+ 2.1 Channel Soundbar with Wireless Subwoofer and Bluetooth Connectivity

soundbar · 2 fixes

Q-Series Q6510 QLED

tv · 2 fixes

Other TCL 6-Series R655 Mini-LED Error Codes

E01

Backlight Failure

2 fixes

E02

Panel Temperature Sensor Error

2 fixes

E03

T-Con Board Communication Failure

2 fixes

E05

Wi-Fi Module Not Responding

2 fixes

E06

Audio System Malfunction

2 fixes

E07

HDMI Port Initialization Error

2 fixes

E08

Firmware Corruption Detected

2 fixes

E09

IR Sensor Failure

2 fixes

People Also Ask About TCL 6-Series R655 Mini-LED Error E04

What does error code E04 mean on a TCL 6-Series R655 Mini-LED?

Error code E04 on the TCL 6-Series R655 Mini-LED means: Power Supply Voltage Out of Range. This error indicates the power supply output voltage is outside the specified range, possibly due to a failing power board or unstable mains power. It can cause the TV to shut off unexpectedly or fail to power on.

How do I fix error code E04 on my TCL 6-Series R655 Mini-LED?

The most successful fix is "Replace Power Supply Board" (hard difficulty, ~90 minutes). Estimated DIY cost: $60-$120. HomeMD has 2 community-ranked fixes for this error.

Is error code E04 on a TCL 6-Series R655 Mini-LED serious?

This error is rated critical severity. It is generally not urgent and can often be resolved with a simple DIY fix.

Can I fix TCL 6-Series R655 Mini-LED error E04 myself?

Yes — the top-ranked community fix ("Replace Power Supply Board") is rated hard difficulty and takes about 90 minutes. Tools needed: Phillips screwdriver, Multimeter.

How much does it cost to repair TCL 6-Series R655 Mini-LED error E04?

DIY cost: $60-$120. Professional repair typically costs $180-$300. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the TCL 6-Series R655 Mini-LED have?

The TCL 6-Series R655 Mini-LED has 8 other known error codes, including: E01 (Backlight Failure), E02 (Panel Temperature Sensor Error), E03 (T-Con Board Communication Failure), E05 (Wi-Fi Module Not Responding), E06 (Audio System Malfunction), and 3 more.

Which other TCL models have the E04 error?

Error code E04 also appears on 4 other TCL models: 4-Series S446 4K, 5-Series S546 QLED, Alto 8+ 2.1 Channel Soundbar with Wireless Subwoofer and Bluetooth Connectivity, Q-Series Q6510 QLED. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the TCL 6-Series R655 Mini-LED have?

The TCL 6-Series R655 Mini-LED has 8 other known error codes:

E01 — Backlight Failure (2 fixes)
E02 — Panel Temperature Sensor Error (2 fixes)
E03 — T-Con Board Communication Failure (2 fixes)
E05 — Wi-Fi Module Not Responding (2 fixes)
E06 — Audio System Malfunction (2 fixes)
E07 — HDMI Port Initialization Error (2 fixes)
E08 — Firmware Corruption Detected (2 fixes)
E09 — IR Sensor Failure (2 fixes)

Which other TCL models have the E04 error?

Error code E04 also appears on 4 other TCL models:

4-Series S446 4K (tv) · 2 fixes
5-Series S546 QLED (tv) · 2 fixes
Alto 8+ 2.1 Channel Soundbar with Wireless Subwoofer and Bluetooth Connectivity (soundbar) · 2 fixes
Q-Series Q6510 QLED (tv) · 2 fixes

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