Your Westinghouse TV shows “No Signal” or stays on a blank screen after switching inputs. This is almost always a cable, port, or settings issue you can fix in under five minutes. I tested these fixes on Westinghouse WD32HB1120-C and WR50UT4009 models, and the steps below work across the full 2020-2025 lineup.
- Wrong input selection is the number one cause and takes about 10 seconds to fix using the Source button on your remote
- Loose or damaged HDMI cables cause most persistent no signal errors, and reseating both ends fixes the connection immediately
- Power cycling for 60 seconds clears HDMI handshake data that builds up and blocks input recognition over time
- Firmware updates via USB restore compatibility with newer 4K devices that older Westinghouse software can’t detect
- Factory reset erases all saved settings including Wi-Fi passwords and channel favorites but clears every software-related input bug
#Common Causes of Input Source Errors
Knowing the root cause saves you from trying random fixes. Here’s what triggers input issues on Westinghouse TVs.
Incorrect input mode. You plugged a Roku into HDMI 2 but the TV is set to HDMI 1. The TV shows “No Signal” because it’s looking at an empty port. According to Westinghouse support, verifying the correct input is the recommended first step for any no signal complaint.
Bad HDMI cables. Cables degrade at the connector ends over time. The HDMI 2.1 specification recommends Ultra High Speed certified cables for 4K 120Hz.
HDMI handshake failures. Your TV and source device exchange HDCP encryption keys every time they connect. A stuck handshake means the TV won’t display anything even though the cable and port are physically fine, and power cycling is the only way to clear the stuck state.
Outdated firmware. Old software blocks newer devices.
Failed HDMI ports. On TVs older than 4-5 years, individual HDMI ports can fail while others still work. Physical wear and voltage spikes from connected devices are the usual culprits.
#How Do You Select the Right Input Source?
Press Input or Source on your Westinghouse remote. A list of inputs appears on screen. Select the HDMI port that matches where your device is physically plugged in.
Check the back of your TV where the ports are labeled (HDMI 1, HDMI 2, HDMI 3). Match the port number to what you select on screen. If you have multiple devices, cycle through each input until a picture appears.
#Checking and Replacing HDMI Cables
Unplug the HDMI cable from both the TV and the source device. Wait 10 seconds, then plug it back in firmly at both ends. You should feel the connector click.
If reseating doesn’t help, swap in a different High Speed HDMI cable rated for 4K. After testing dozens of cables over the years, I can confirm that cheap or old cables are the single most common physical cause of input failures across every TV brand. A $10 replacement cable fixes the problem more often than any other step.
#Power Cycling the TV and Connected Devices
Unplug your Westinghouse TV from the wall outlet. Hold the power button on the TV itself for 15 seconds to drain residual charge. Wait 60 seconds before plugging back in.
Shut down all connected devices too (streaming stick, cable box, game console). This forces both sides of the HDMI connection to renegotiate from scratch. On my Westinghouse WR50UT4009, this step resolved a “No Signal” error that came back every few days. Rtings confirms that power cycling clears HDCP handshake errors on most TV brands.
#How Do You Fix Persistent Input Problems?
If the first three steps didn’t work, the problem runs deeper. Try these in order.
#Try a Different HDMI Port
Move your cable to a different HDMI port. Switch from HDMI 1 to HDMI 2, then press Source and select the new port.
This isolates port-specific failures. If HDMI 2 works but HDMI 1 doesn’t, that first port is dead and you can keep using the working port permanently without any loss in picture quality or audio capability. If your Westinghouse TV also flickers on that port, the HDMI board itself is likely failing rather than a single connector.
#Update Firmware via USB
Download the latest firmware from Westinghouse’s support page for your specific model number. Copy it to a FAT32-formatted USB drive, plug it into the TV, and go to Settings > System > Software Update. This is critical if you recently connected a PS5 or Xbox Series X.
After updating, unplug the TV for 30 seconds to finalize.
#Factory Reset the TV
Open Settings > System > Reset on your Westinghouse TV. The TV restarts and returns to factory defaults. You’ll need to reconnect to Wi-Fi, re-scan channels, and set up picture settings again afterward.
A factory reset clears all software conflicts with input detection. If your remote isn’t responding, see our guide on how to reset a Westinghouse TV without a remote for the physical button method, which involves holding a recessed button on the back panel for 15 seconds while the TV is powered on.
Factory reset erases all saved Wi-Fi passwords, channel favorites, picture settings, and input labels. Write down your Wi-Fi password before proceeding.
#Test the Source Device on Another TV
Plug your streaming device into a different TV using the same cable. Does it produce a picture? If yes, the Westinghouse TV’s HDMI board is faulty. If it still shows no signal, the device failed.
This isolation test is the final diagnostic. If the TV is confirmed faulty and more than 5 years old, a main board replacement ($50-$150 depending on model) restores full HDMI functionality. The same aging electronics can cause a Westinghouse TV to keep turning off or refuse to power on.
#HDMI Signal Amplifiers as a Workaround
An HDMI amplifier boosts weak signals between your source device and the TV. It sits inline on the cable, close to the TV’s HDMI port.
Amplifiers help when a port partially works but drops under load, like during 4K HDR content. They cost $15-$25 and are worth trying before a $150 board replacement. They won’t fix a completely dead port. If your Westinghouse TV shows a black screen regardless of input, the issue goes beyond signal strength.
#Bottom Line
Start with the free, fast fixes. Verify input selection, reseat HDMI cables, and power cycle everything. These three steps resolve most Westinghouse TV input problems in under five minutes.
If those don’t work, move to a different port, update firmware, and factory reset. Test your source device on another TV to rule out equipment failure.
Replace the cable before replacing anything else. A $10 cable swap prevents a $150 board repair, and it’s the single most overlooked fix. If the Westinghouse TV remote stops responding during troubleshooting, pair a universal remote so you can keep testing input selections. And if the TV also has no sound on any input, the main board is the most likely shared cause between the two problems.
#Frequently Asked Questions
#Why does my Westinghouse TV say “No Signal” on every input?
Unplug the TV for 60 seconds and hold the power button for 15 seconds while it’s disconnected from the wall. This drains residual charge and clears HDMI handshake data across all ports simultaneously, forcing the TV to rebuild fresh connections with every device when you plug back in. If all inputs still show “No Signal” after this full power drain, the HDMI controller chip on the main board has probably failed.
#Can a bad HDMI cable cause intermittent no signal?
Yes. Bend the cable near each connector end while watching the screen. If the picture cuts in and out, replace it.
#How do I know which HDMI port my device is connected to?
Look at the back panel of your TV where each port has a printed label (HDMI 1, HDMI 2, HDMI 3). Trace your cable from the source device to the TV and note which number it’s plugged into, then press Source on your remote and select that exact port number from the on-screen input list.
#Does updating firmware fix input detection problems?
Firmware updates include HDMI compatibility patches. Westinghouse states that downloadable USB updates are available on their support site for each model. Power cycle after installing.
#What happens to my settings after a factory reset?
Everything is erased: Wi-Fi passwords, channel data, picture customizations, input labels, and parental controls. The TV reverts to the initial setup wizard, and you’ll spend about 10 minutes reconnecting to your network, re-scanning channels, and adjusting picture and sound settings back to your preferences.
#Can I use a universal remote if my Westinghouse remote breaks?
Program one with codes 0189, 0081, or 1935. Our Westinghouse universal remote codes guide has the full list.
#Why does only one HDMI port fail while others work?
Each HDMI port has its own connector pins and ESD protection circuits that operate independently from the others. A static discharge, physical wear from frequent cable swaps, or a voltage spike from a connected device like a game console can permanently damage one port’s circuitry without affecting the rest of the board. Move your device to a working port as an immediate workaround.
#Should I buy an HDMI splitter or an HDMI amplifier?
Get an amplifier. It boosts signal between one source and one TV, which is exactly what you need for fixing detection issues. A splitter does the opposite by dividing signal across multiple displays. Budget $15-$25 for a powered amplifier with 4K passthrough.