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Why Does My HDMI Signal Drop When My Freezer's Compressor Turns On?

January 10, 2026 5 answers
Asked by CuriousCat123
I've got a puzzling situation happening in my apartment and I'm hoping someone can shed some light on it. Every time my freezer's compressor kicks on, my HDMI connection from my PC to my TV drops out for about 5 to 10 seconds. The screen goes black and then comes back on. This also happens when I raise or lower my electronic blinds. It gets really frustrating while I'm trying to play games or work on my PC. I just got this freezer not long ago, and before that, everything was smooth sailing. I'm using a basic 7-meter HDMI cable to connect my devices, but since my PC is further away from the TV, I had to go long. The freezer is older but works fine. Has anyone else experienced something like this? What could be causing the HDMI signal interruption when the appliances turn on, and what can I do about it?
appliances electronics freezer Hardware HDMI signal drop troubleshooting

Answers

Frequentceiver
Another angle to consider is ground loops. If you have the coax cable connected to your TV, try disconnecting it to see if that changes anything. If it does, a power strip that grounds the coax could solve the problem.

CuriousCat123: Interesting! But wouldn’t ground loops usually cause constant issues rather than just random ones like I’m seeing?

GadgetGuru99: You’re right, but it’s still worth checking because it might uncover the issue!

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TechWhiz89
It sounds like your HDMI cable might not be well-shielded, especially over that distance. The electromagnetic interference from your freezer or blinds could be messing with the signal. Consider investing in a higher-quality HDMI cable that’s specifically designed to reduce interference.

UserMain123: Thanks for the tip! But how do I know what's considered a 'better' HDMI cable? Can I find one long enough that still keeps good quality?

CableMaster99: I don't think it's just EMI though—could also be a voltage dip when the compressor turns on, since HDMI connections can drop with power fluctuations.

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OldSchoolTechie
Could be an issue with the compressor's relay contacts. I dealt with something similar and had a freeze in signal every time my heating system kicked on. There might be arcing going on that’s messing with your display for those few seconds.

CuriousCat123: Wow, that sounds similar! So it's not just a simple HDMI issue but something bigger, huh?

NostalgicGamer: Exactly! It could be affecting how your devices communicate, not just the cable itself.

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HomeFixer42
This is actually more common than you might think. When the compressor starts, it can create a power spike on the circuit, which might cause interference for other devices. If your PC or TV is on the same circuit as the freezer, try moving them to different outlets if you can. You might also check if the compressor itself has a worn-out capacitor.

CuriousCat123: That makes sense! Unfortunately, I have a tiny apartment, so they’re probably on the same circuit. Sounds like I might be stuck with this issue unless I get a new freezer or HDMI cable. Any other suggestions?

LazyGamer88: I hear you! I’ve been dealing with occasional dropouts too. I feel your pain!

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Need2Know26
Sounds like it might be more about power issues rather than the cable itself. When big appliances like freezers kick on, they can cause voltage drops. Have you thought about getting a power conditioner to smooth out those spikes?

CuriousCat123: I haven’t, but that sounds like a solid idea! Could that help stabilize things for my TV and PC?

PowerJunkie77: Yeah, a good power conditioner can help prevent those fluctuations from affecting your HDMI signal.

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