*How to hack my garage power feed by bridging CBs?* should definitely be off-topic.

*How do I increase the fill level on my washing machine?* is (should be) on topic.

IMO disallowing "Operation of major appliances or questions regarding small appliances." is wrong. It directly conflicts with: ('operation' is, *which button do I press?*)

>Which tools, materials, and best practices for home improvement task.
Identifying the source or cause of a problem within your home. Installation, maintenance, and repair of major appliances.

That no one repairs toasters anymore doesn't make it off-topic; it's just impossible these days. People still fix microwaves, though.

I don't see any difference between modifying your furnace and a washing machine. *How can I put a speed control on my furnace blower?* would have to be off-topic, too.

**New close reason:**
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>**Not user serviceable.** The repair of these type of devices are beyond the [scope][1] of DIY Stack Exchange. Any modifications made to them without explicit instructions from the manufacturer may void warranties, violate building regulations and/or create hazardous situations.

It's not off-topic, it's: *no, you can't*.

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Tell me how to fix my toaster: *no*.

Help me adjust my [thing]: *yes*.


  [1]: http://diy.stackexchange.com/help/on-topic