Dishwasher killing computer

[DiyNutJob]

Recently, I had a loud pop in the kitchen in the direction of the washing machine and dishwasher. The dishwasher was in use, and the washing machine was plugged in but not powered on from the front panel. As I had previous experience of this kind of pop, I knew an EMI filter was blown. Although, I couldn't tell which machine was affected. Since everything continued to work, I left it. Then, a 20 year old apple monitor died (could be coincidence because of age). Today, my USB devices suddenly died coinciding with the wash cycle ending. So, the faulting machine was identified.

While I get parts or replace the dishwasher, is there any way for me to EMI-isolate it in the mean time since it works anyway? Will plugging it into a surge protector help? Will plugging the computer into the surge protector help? Are there any other isolation methods? If the other appliances are not in use but plugged in, can they be affected by the EMI noise? Thanks.

The surge protector I have is this, SurgeMaster II. It appears to have EMI filtering. If I plug the dish washer into that, will everything else in the house be isolated from the dishwasher?

http://cache-www.belkin.com/support/dl/Surge_mainbrochure_u.pdf

 

[pto]

not a chance of the dishwasher doing that

 

[DiyNutJob]

not a chance of the dishwasher doing that

Why'sat? I literally caught it doing that red-handed, 2 hours ago. The previous POP and latest USB interruption occurred at the end of the wash cycle where the pump completed pumping and heater switching on for dish drying. I would expect a surge of power consumption by the dishwasher at that point. The USB devices survived after resetting the hub.

 

[DiyNutJob]

Thank you for your attention in this matter - my trump impression. I appear to be in luck!

AI Overview

Yes,
EMI filters are generally bidirectional, meaning they work in reverse to block noise flowing from the equipment back to the power line, protecting the grid, as well as blocking noise from the line into the device, but their effectiveness (attenuation) might change depending on the specific design and load impedance. They are designed to allow desired power frequencies (like 50/60 Hz) through while shunting unwanted high-frequency noise (EMI) in both directions.

How they work in both directions:

• Forward (Line to Load): Filters out noise from the main power line before it reaches your sensitive equipment, preventing interference.
• Reverse (Load to Line): Prevents noise generated by your equipment (like switching transients from inverters or motor drives) from polluting the main power grid.

Key considerations for reverse operation:

• Bidirectional Nature: Most power line EMI filters are designed as two-port networks to handle noise in both directions.
• Attenuation Differences: The filter's performance (how much noise it blocks) can be different in the reverse direction compared to the forward direction, depending on the impedances it sees.
• Design Matters: Some filters are optimized for specific noise types (common-mode vs. differential-mode) and frequencies, so performance can vary.

In short, an EMI filter acts like a one-way valve for "clean" power, allowing it to flow in but stopping "dirty" power (noise) from coming in or going out.

 

[Harry Bloomfield]

Thank you for your attention in this matter - my trump impression. I appear to be in luck!

AI Overview

Well, AI always knows best!

 

[foxhole]

Well, AI always knows best!

Depends how you ask the question , tried a few simple questions and AI got them wrong , like humans tends to make assumption .

 

[DiyNutJob]

Well, AI always knows best!

It doesn't. I had a thread demonstrating one crashed in less than 10 questions. But it can deal with the simple stuff.

 

[DiyNutJob]

I am in for more luck. I fixed the apple monitor using sellotape. The dishwasher severely wounded the circuitry for tuning on the monitor power supply. Masking out the circuitry allowed the power supply to work again. That saved me a tenner buying a china psu.

 

[jj4091]

If you’re suppressor had failed the machine would not have completed the cycle so I would guess your problem lays elsewhere

 

[DiyNutJob]

If you’re suppressor had failed the machine would not have completed the cycle so I would guess your problem lays elsewhere

It was already proven in a previous instance a blown up filter did not affect operation of the appliance.

 

[Harry Bloomfield]

It was already proven in a previous instance a blown up filter did not affect operation of the appliance.

Here we go, with another 50 pages..