re: PAGING NAPOLEAN LG refrigerator stop working UPDATE

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What's the after market surge protector cost?

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$10

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What'a the typical replacement cost of these motherboards?

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$200. Just for the board.

Effective protection means everything (dishwasher, clocks, central air, dimmer switches, microwave, GFCIs, garage door opener, furnace, LED & CFL bulbs, smoke detectors) is protected. Worse, no plug-in protetor claims effective protection. Anyone can read specification numbers. Most do not and make a recommendation anyway.

A plug-in protector can cost $20 or $90. One properly earthed 'whole house' solution (that protects everything) costs about $1 per appliance. Tens of times less money. And with numbers that actually define protection.

Worse, a plug-in protector can even make nearby appliance damage easier; compromise (bypass) what is better protection inside electronics.

Safety ground does nothing to protect any appliance and does not make any plug-in protector effective. Wall receptacle safety ground is not earth ground.

Only assumed is what caused electronics failure. Why not only a fuse? Or the most common reason for failure - manufacturing defect? Long before blaming electronics, well, why were all those other unprotected appliances also undamaged?

Maybe a homeowner all but invited a surge inside. So it went hunting for a best connection to earth. Once inside, then nothing can protect from a typically destructive surge. Protection always means earthing it outside so that a surge is not inside.

What is protecting all those other appliances?