black screen when fridge motor or heater starts

[ferdiisagamer]

I agree with the above, that it is likely to be interference momentarily corrupting the HDMI or DVI connection from computer to TV. This is actually quite a common problem and is unlikely to be harmful to either device although it is very annoying.

Do you have another HDMI cable to test with? If the one you are using came free with something, it might be of low quality and not well shielded against interference. Contrary to some claims, better quality HDMI cables don't give better pictures but they are more likely to be resistant to interference.

If a better / different cable doesn't solve the problem, do you have another monitor you can display the PC output on, that might prove that it is specifically this pairing of PC and TV that is susceptible?

BTW how long is the cable? Is it just a single cable with no inline extensions / adaptors?

Thanks for your help,had same issue and was going nuts thinking it was a defective gpu or psu.I replaced my hdmi and everything is fine now