Question about Panasonic PV-V4022 VHS VCR

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Blows internal fuse

This unit blows the small fuse IMMEDIATELY when plugged in to a 120Volt power outlet.

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Check the diodes going to the fuse. there are 4 of them

Posted on Apr 11, 2008

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Now is time to check the capacitors that lead to the fuse. Also check the ground circuit too, then let me know. The tests must be done with an ohm meter or similar device.

Posted on Nov 20, 2007


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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2 Answers

Fuse Blows

does the unit works at all?

Dec 11, 2007 | Lowrance Iway 500c GPS Receiver

1 Answer

I hooked my Playstation 4 into a 410w converter it played for a while now when I turned it on the fan comes on and it immediately turn the game off what can be the problem I changed all the fuses

The ps4 should draw 5 amps (check the spec plate to be sure). 5 amps x 120volt equals 600watts. ( not's actually voltamps which then is multiplied by a correction factor to get watts....but it's close enough for this purpose) this means your 4 10 watts converter is too small for your ps4. You really needed 70s watts to have enough calacity. Try using a regular outlet and see if it works if it does then your converter is too weak. If not then you damaged the ps4 power supply.

Oct 20, 2016 | Video Game Consoles & Games

1 Answer

No lights, won't run. Nothing. Worked fine yesterday.

Hello. Critical question--is the dishwasher on that GFCI circuit!? If so, (A) you might have voided any warranty and (B) you should NEVER have appliances with digital boards on a GFCI circuit. Why? Because the method GFCI breakers and outlets use to keep us safe(how they reference current to ground) can blow out the electronic control boards plugged in to the circuit they monitor. I am ALWAYS telling my customers to immediately switch out an outlet or breaker which is protecting a washer, dishwasher, or microwave. I know that electrical codes often mandate that a GFCI device be within 3 feet of a water source but the design engineers didn't think about that one...It often is buried in the users manual to NOT connect the device to a GFCI.
Now, after all that, I need the model number of your unit to help you most accurately--some dishwashers have a main fuse on or near the main control board. If this fuse opens, voila! The unit is D-E-A-D until you replace the fuse. However, if there isn't a fuse, you've got a blown main board(and possibly user control panel, too). Power slams like the one you experienced are notorious for damaging control boards. That's why power outages are so destructive--they either blow out boards immediately or cause them to fail in about 3-4 weeks afterwards due to the damaged chips on the board starting to fail from over-current/voltage. I hope I helped you!

Oct 02, 2015 | KitchenAid Dishwashers

1 Answer

Tv dead during lightning

Could be minor or maybe done for but here goes. Some flat panel TVs have the main power cord with one of those small transformers built into the plug end that converts 120volt ac to DC power. Output voltage should be listed on the transformer tag. You need to find someone with a voltage tester and see if the TV plug end is showing DC voltage. If not the complete power cord needs replaced. If that checks out-- the next thing is to remove the complete TV back cover and look for fuses right near the power plugs into the TV. The fuses should blow out first from a lighting surge. The problem is how much of a surge you got. It may have damaged the power supply board in the TV which may need replaced. Hope this helps

Jul 12, 2015 | Televison & Video

1 Answer

Suddenly microwave stopped working

(would really like more info- digital number dead as well?)

(assuming completely dead) Could be a couple of things:
- blown fuses (inside, relatively easy to replace, std size avail at Raioshack) <-- most likely
- cut/loose power cord connection inside.
- (unlikely but worse case scenario) Door was closed crooked- one tong hit one door switch before the other- causing a short circuit internally that "self destructs" the microwave to prevent it ever operating with an open (or even crookedly ajar) door, irradiating any users. Typically it just blows the fuses, but if fuses blow immediately upon replacing and turning power on, then possibly one of the switches fused or melted internally, and needs to be replaced.

Jan 28, 2014 | Whirlpool MT4155SP Microwave Oven

1 Answer

AO Smith Water heater FPSH50-260 keeps blowing fuses

FPSH series is a power vented residential gas water heater.

1) The blower is plugged into 120Volt outlet. If blower has short, then it will trip breaker.
Blower could be Fasco model 7021-10195, or 7021-10770. Call AO Smith: 1-800-527-1953. They will need model number and serial number located on label on side of tank.

2) Before calling AO Smith, check outlet with circuit analyzer. Outlet must have correct polarity and must be grounded. Unplug cord to water heater and run continuity test from ground prong on electrical plug to manifold tube on gas valve.

3) Also if a fluorescent light fixture is on the same breaker, that can cause burner to short cycle.

4) Connect water heater to different outlet and see if problem continues.

5) AO SmIth has service manuals for the FPSH series that download to your computer:

Sep 20, 2011 | Water Heaters

1 Answer

While running in a screw to install a new electrical outlet cover, the outlet made a small pop and the lights flickered but immediately came back on. I plugged in the unit to see if it worked and nothing...

You say the unit is 220 volt, but the plug you installed has a white wire which is normally on a 120 volt outlet. A 220 volt outlet would have 2 black wires and ground. If you do have 220 there, and the reset does no good, I've seen those resets(they are basically built in GFI) blow out and had to bypass/put different chord on. there are fuses on the control board but I would check that last

Jun 24, 2011 | Frigidaire FAS257S2A WallWindow Air...

1 Answer

No power at all. Outlet is fine. Is there an internal fuse?

Yes there is most of the time. A new fuse can be obtained from radio shack. Most ovens use a small ceramic cartridge fuse ABC 15 or ABC 20. Please note though that this fuse usually blows because one of the small microswitches in the door circuit is bad (overheated and is burning up inside) or has operated out of sequence with the other several switches. Newer microwaves have one big switch assembly that needs to be replaced when the fuse blows. Make sure the door fully closes when replacing a switch. Be very careful with microwaves. There is very high voltage inside that could severely shock you!

Jun 23, 2010 | Magic MCB770W 700 Watts Microwave Oven

1 Answer

12v outlet fuses keep blowing.

Faulty reciever ,,, Worth checking the plug assy for internal damage . Check that the sat receiver is within the power capabilities of the vehicles acessory plugs < 10amp .

Dec 23, 2009 | 2004 Ford Ranger

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