Questions tagged [appliances]

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Beginner: Solder won’t flow onto thermostat tabs

I’m trying to repair my espresso maker with a new thermostat but am unable to get the solder to flow. I’m a beginner but have had some experience soldering my own guitar pedals using stripboards in ...
tylorreimer's user avatar
1 vote
1 answer
59 views

How to Test Battery Health in GRUNDIG VCP 3930 with a Multimeter, Arduino, or Raspberry Pi?

As a follow-up to this question, I own a GRUNDIG VCP 3930 vacuum cleaner (which uses a 25.2V, 2000mAh Li-ion battery) that has stopped charging properly. I am being told that the battery on this ...
Foad's user avatar
  • 233
1 vote
0 answers
86 views

Class III appliance with metal chassis connection

I am designing a SELV/Class III appliance (lab/industry type, IEC 61010), supplied via two-pin isolated DC power. For mechanical reasons, the chassis has to be metallic. As a result, there are going ...
tobalt's user avatar
  • 22k
0 votes
1 answer
25 views

Maytag MDB9100 connector to circuit board

I'm replacing the circuit board on my Maytag MDB9100 dishwasher. I'm having trouble connecting the white and black connectors on the bottom edge of the new circuit board. Everything else has been fine....
Marc's user avatar
  • 1
0 votes
0 answers
85 views

How to determine whether a transformer is dead

My range hood broke, so I took it apart. I confirmed that 125V is arriving at the control board, which is connected to a fuse which is good, which is connected to a transformer. My voltmeter (AC mode) ...
tom's user avatar
  • 149
3 votes
2 answers
703 views

3 phase induction hob, single phase wiring [closed]

While installing this 3-phase appliance I came across these diagrams which have been bugging me a bit, therefore it would be nice to find out what is the correct way to wire this up and what is the ...
floxia's user avatar
  • 109
2 votes
0 answers
55 views

EU appliance use on US circuit - grounding concerns

I've been reading through old posts about people wanting to use European kettles and other appliances on a 240v US circuit. Forget the 50hz/60hz frequency difference for resistive loads and universal ...
opencircuit1223's user avatar
1 vote
1 answer
41 views

Sourcing an alternative strain relief adapter [closed]

I'm doing a simple modification of my old Sony sound system. It came with no earth wire and I wish to replace the cable and connect the earth to the metal chassis of the stereo. My issue is that the ...
aghsmith's user avatar
  • 111
1 vote
3 answers
593 views

Identifying Mains Connector for Bosch 300/500/800 Series Dishwashers

Bosch dishwashers do not ship with a simple junction box built into the front quarter, as most dishwashers do. Instead, they use a 3-pin connector; presumably because this approach allows them to ...
BMDan's user avatar
  • 11
0 votes
7 answers
2k views

Can I utilize 3 phase power in a single phase appliance by connecting all 3 lines in parallel?

I can't seem to find an answer to this. Assume we have a 400V three phase power source. Connecting phase-to-neutral will give 240V. If you connect them in parallel you should still end up with 240V AC....
Nederealm's user avatar
  • 167
1 vote
1 answer
65 views

Why does my food mixer have voltage across input cable leads even when unplugged?

I have a technical problem where the cable of a food mixer has voltage across its cable when unplugged. When I measure it with a multimeter at various times after being unplugged it shows a voltage ...
LEXOR AI's user avatar
  • 336
1 vote
1 answer
78 views

What kind of displays and processors are used in consumer electronic products (like a coffee machine)? [closed]

I am presently working on the development of a smart kitchen appliance, which will eventually be sold in the market. As part of this project, I need to incorporate a touch display for the operation of ...
santosh kumar's user avatar
1 vote
2 answers
168 views

Which circuit or device can I use to lower my electronics power usage

Resistance device uses 1.0 kW on standalone usage load measurement. I tried using diodes in series to half the power rate to 500 W, Wondering whether to use a 220V to 110 V step down or reduced the ...
Le Ozinuel's user avatar
0 votes
1 answer
76 views

Appliances and power station frequency compatibility [closed]

I am planning to buy an Anker Power Station. The US website it says that the power output is AC Output/AC: 110 V~ 4.54 A, 50 Hz/60 Hz, 500 W I'm buying the unit here in Middle East and the unit back ...
Wayne's user avatar
  • 113
1 vote
1 answer
5k views

Is there a way to identify which wire is L and which is N on an appliance (the electrical device itself, not the wall socket)?

I have a specific question but I thought it could also be made more generic. I have this device, a Fakir HQ1200 heater: I am an idiot and disconnected the wires before taking a picture/marking them, ...
Asaf Sitner's user avatar
0 votes
1 answer
197 views

How to drive an induction hob coil from AC mains

I have been looking into designing an induction hob circuit, but haven't really found complete answers to my questions. As I understand it, it's important to take advantage of the natural resonant ...
Rocketmagnet's user avatar
  • 27.4k
0 votes
1 answer
154 views

How do I calculate a transformer's VA rating for a kitchen grinder based on its power consumption in Watts?

I imported a 110V kitchen grinder but a 220V one arrived instead. According to its included specs it consumes 150W and reaches 14500 RPM. In the case I start looking for a transformer for it, what ...
Piovezan's user avatar
  • 133
0 votes
2 answers
64 views

Electric panel heater to smart [closed]

I just bought a house that comes with these panels for heating. The panel has a timer but I’d like to explore if there is any smart option. The option I initially checked is those smart WiFi plug, but ...
Geo Koro's user avatar
-3 votes
3 answers
98 views

Why doesn't refrigerator start immediately after putting the switch on? [closed]

I've gotten something common. Please don't assume there is a malfunction or default with my refrigerator. The experiment asks what would happen if I turned off the refrigerator's power source and then ...
Robin's user avatar
  • 1
2 votes
1 answer
133 views

How can there be 0 volts difference and yet I can feel electrical tingle? [closed]

While the background for this question is quite practical and probably off-topic for this site, what I'm asking here for is why this happens and not how to fix it. I want to understand the electrical ...
Vilx-'s user avatar
  • 725
0 votes
4 answers
8k views

Is it acceptable to connect a car battery and an AGM battery in parallel?

I power a 12V fridge in my car either via the car battery (when the vehicle is running) or via an AGM battery. There is an Anderson outlet in the car connected to the car battery to which I attach a 3 ...
Guru Josh's user avatar
  • 185
-3 votes
1 answer
139 views

12V-only (and no 110V/220V) household electrical installation [closed]

Power outlets are in 220V/110V in houses for historical reasons (light bulbs and other appliances probably required >100V voltage) but nowadays as: we use a USB charger 220V->5V for phones, ...
Basj's user avatar
  • 1,906
0 votes
1 answer
239 views

Using electrical equipment made in the US, in Japan

A lot of (good) US stuff is available in Japan through international online sales (Amazon). However, most equipment purchased in Japan from the US are shipped as-is, without any change, while the ...
Déjà vu's user avatar
  • 281
2 votes
2 answers
401 views

Can I safely remove the buzzer from a Philips air purifier?

I am trying to silence my air purifier (Philips AC5659/10). I think it uses a piezo-buzzer (front & back of PCB visible on page 4 of this document). In a similar vein to this question, I would ...
Karol J. Piczak's user avatar
1 vote
1 answer
147 views

Are there non-unscrewable microwave oven bulbs? [closed]

I recently emptied a Samsung microwave oven of its components and came across the lightbulb, which appeared at first glance to be fitted in a diamond shaped holder. Though when I looked through the ...
Andreas's user avatar
  • 190
0 votes
3 answers
349 views

Can I reduce the power used by an AC heater? [closed]

I have a 2000W resistive heater that plugs into 220V AC. Is there any device that I can place between the heater and the outlet that will make it, simply speaking, not heat as much, and behave as it's ...
Alex J's user avatar
  • 103
1 vote
2 answers
185 views

Laptop battery - Appliance class - Is it safe for ungrounded outlet? [closed]

I have some ungrounded receptacles in my house that are GFCI/AFCI protected. I wanted to check if my laptop (power brick) can be safely used on these receptacles. On the power brick I see this ...
Igor's user avatar
  • 113
0 votes
3 answers
919 views

Solving for using 120 V, 60 Hz washing machine and dryer in 240 V, 50 Hz environment

Thanks in advance for the feedback. My family will be building our dream home and moving to Europe in a few years. I’ve lived in various regions of the world and one of the biggest conveniences that I ...
mjk39's user avatar
  • 1
1 vote
1 answer
109 views

What causes an induction cooker to lower heat level by itself [closed]

It's more than 5 years old. It is difficult to cook in high temperature because the minus sensor appears to be activated all the time. I end up going from 1600 to 400 every time. What must be the ...
user avatar
4 votes
1 answer
98 views

Why do European motorized appliances draw less inrush current than their American counterparts?

I have been trying to tease apart the history and evolution of arc fault circuit interrupter requirements, and in the process, came across a curious historical sidenote early in its genesis, namely ...
ThreePhaseEel's user avatar
0 votes
1 answer
47 views

Rated voltages for the Cage clamp connectors?

what does the rated voltage for a connector means? How should we select the connector for a 230V AC application? Let us say can I use this connector for my 230V AV application? https://www....
IamDp's user avatar
  • 1,885
0 votes
1 answer
94 views

Calculating wattage of electrical appliances

I need some help from you. I don't know how to calculate wattage of my refrigerator. It has a warmer part and cooler part. Below is its configuration. Also, if you guys don't mind, please roughly ...
Aung Kyaw Htet's user avatar
0 votes
1 answer
95 views

Securing a very, very old 220V switch

We recently acquired a very old saw that accepts either 220V or 120V. It came with a suicide (male-male) cord, in turn going to a female-socket cable: which in turn goes to a DPST switch: in turn ...
Reinderien's user avatar
  • 3,199
0 votes
1 answer
540 views

Do thermal cutoff fuses wear out if used below rated temperature?

I tend to keep my electrical applicances alive for decades and have had several thermal fuses (the non-resettable axial kind) repeatedly wear out for no apparent reason, some of them in expensive ...
Andrew Queisser's user avatar
0 votes
5 answers
739 views

Why do household appliances use DC motors? [closed]

Couldn’t appliances like fans also use AC motors? What is the advantage of converting to DC?
Ryan's user avatar
  • 159
2 votes
1 answer
499 views

Need help designing a hairdryer

I'm designing a hairdryer as project for a university class, but I'm having trouble regarding the choice of the motor. I need it to have two possible speeds. My first idea was to use an AC motor and a ...
gabs136's user avatar
  • 23
1 vote
2 answers
65 views

Switches and functions of microwave oven unresponsive on cold start

I have an old microwave oven which performs most of its functions, considering its age. There is a slight problem that the switches go unresponsive and the LCD display fails to operate correctly if I ...
schizoid_man's user avatar
2 votes
1 answer
411 views

How could one "inverter control" convector heater be more electrically efficient than another?

I'll have to explain it step by step so that you have no chance to misunderstand what I'm asking about. First, what a convector heater is. It's a plasma TV shaped box usually made of sheet steel. ...
sharptooth's user avatar
  • 12.4k
0 votes
3 answers
114 views

Wiring for solar powered house [closed]

I am trying to design electrical wiring for a small 1-bedroom house which will be only powered from solar panels. The minimum appliances in a house would be: Appliances available in 12V DC: LED ...
scico111's user avatar
  • 877
0 votes
3 answers
405 views

Is most of non-isolated power supply "safe"?

I need a large power supply (a little over 1kW) for a consumer appliance that only has a single on/off switch and some non-conductive handles. An off-the-shelf isolated supplies run at least $60 for ...
abc's user avatar
  • 639
1 vote
2 answers
571 views

Why would bridging a varistor with the multimeter leads on any setting have caused the unit to turn on?

So I've been working on fixing this window AC unit for a while, and when I started I knew next to nothing about circuits. At present today, I know a bit about circuits -- enough that i at least know ...
SubtleHyperbole's user avatar
0 votes
0 answers
123 views

Kitchen Appliance Replacement resistor

I am trying to fix an old Kenwood Chef kitchen mixer that's motor is only working very intermittently. I opened up the unit and found that one of the power resistors are cracked - that is likely ...
Francois B's user avatar
0 votes
2 answers
283 views

How does a "mains priority circuit work"?

Dometic makes a series of DC refrigerators and one capability is to hook the fridge up to both DC and AC and it uses a "mains priority circuit" to prefer the AC source to the DC source, if both are ...
Tyler Durden's user avatar
  • 2,196
4 votes
2 answers
739 views

Is it possible that an outlet can kill AC motors?

I have two recently dead tower fans. The first, I've had for over 6 months, no problems. Recently, I moved it to a new room an plugged it into a different outlet. It died within a day: it seems to be ...
Michoel's user avatar
  • 161
1 vote
1 answer
76 views

Help in bypassing a defective knob in an airconditioning unit [closed]

I would like to ask for help fixing my airconditioning unit. Please see image for a clearer picture of my problem. So I have a defective knob for switching on/off my airconditioning unit. Since its ...
edit12's user avatar
  • 11
18 votes
4 answers
11k views

Can I safely use a 6 A, 600 V diode in place of a 6 A, 400 V diode?

Inexperienced electrical person here, but trying to save significant cost to repair an oven. The oven I have has a MR754 diode off the main convection heating element, that has failed. Unfortunately,...
LTB's user avatar
  • 189
0 votes
2 answers
111 views

Need to operate ac appliances using 5V, 10A relay module with ESP8266 node MCU. How to do it. Please explain the schematics elaborately? [duplicate]

I am having problem in triggering the 5V relay with the output GPIO pin of ESP8266 node MCU. I think the voltage provided by the output GPIO pin is not enough to trigger the relay. I'm thinking of ...
Hrishabh Raj Das's user avatar
1 vote
5 answers
1k views

Is there a reason that dryers aren't grounded [closed]

One minute ago I cried out in pain, after being electrocuted again by my clothes dryer; probably the thousandth time in my life that this has happened. I was taking out clothes after they're dry, ...
Ram Rachum's user avatar
2 votes
1 answer
137 views

Projection clock: how to make a custom display?

I have a projection clock which projects a red image of the current time on the ceiling. I want to know if it's possible to find/build a similar display that would be computer-controlled (project ...
mlevin77's user avatar
0 votes
2 answers
360 views

What causes a thorn like feeling when your put your hand in water in electronic appliances?

I live in India, the voltage supply in houses is 220V. Sometimes, for example in my washing machine, when it is full of water and I put my hand in it, I get a feeling like a thorn/tiny nail is ...
Vikas's user avatar
  • 171