Understanding Electricity and OHMs law

Useful videos to understand basic concept of electricity

Comments and inputs are welcome

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Fridge Testing Fault finding and Basic Repairs

Tired of inexperienced repairmen , i did some investigating , here is what i can share:-

When you switch the fridge off always give it at least 15 minutes rest before you turn it on again.

Problem : U left the door open for a while: Now it is not cooling properly.

Humidity has turned to ice and has blocked the cooling system.

Solution Let ur fridge thaw …ie switch it Off and keep the doors open for a day or two and then switch it On again . Be prepared to remove excess water from the back of the fridge ie in the tray above or besides the compressor or the black oval thinge.

Check out

Problem : Freezer Frozen Solid , Noisy obstructed fan, Frost free fridge not defrosting

1. Fan : Check if it is working or not. If  blocked check 2 and 3.

2. Bimetallic Thermostat: Good if continuity is YES when cold and NO when room temperature  : Bad otherwise or  if puffy or if not good

3. Heating Coil or heater : Bad if Continuity is broken or if MM reads 1
: Good if Continuity is ok or if MultiMeter reads 0.

Generally a bad  thermal fuse with no Continuity could be a sign of bad heating coil, or bad circuit or defrost timer.

If both are ok Problem is more serious and could be the Circuit, Timer or Temperature sensors.

Disconnect 2 and 3 from circuit for 6 to 8 hrs and chk out cooling and frost buildup to isolate whether problem is in 4 or 5.

4. Temperature sensor / Thermistor: 

Generally there are thermistors in both sections freezer and fridge.

  • Fridge /Freezer section too warm or too cold
  • Refrigerator runs too long or short.

Faultfinding : Resistance in a thermistor  increases as temp drops and vice versa. At room temperature 68°F.,the sensor should read approximately 6.1K Ohms. With the thermistor submerged is a glass full of ice water, the sensor should be very close to 32°F which should read approximately 16.3K Ohms

5. Circuit or Mechanical Defrost timer

The circuit board is damaged or the mechanical timer is  stuck .

For mech defrost timers  watch :-

http://www.youtube.com/watch?v=gaRyNiPn26o

http://www.youtube.com/watch?feature=endscreen&v=PFT1mmaeFXw&NR=1

How the Fridge cooling System works 

Liquid refrigerant (Freon/ R134a) entering the evaporator begins to boil into a gas because of the sudden drop in pressure created by the compressor. This change of state absorbs heat. The temperature inside the evaporator coil may be -20 degrees F. This will condense and freeze moisture in the air in contact with the coil (which is why we have to defrost). If there is freon boiling inside the evaporator this frosting will occur within minutes. So if we run the unit with the cover off the evaporator and no frost forms we can know that there really is no freon or the the system is clogged. If the unit runs for several minutes with the door closed and the freon charge is correct, the frosting should form all along the length of the evaporator.

If the cooling system is good in a top freezer fridge , when the compressor has run for some time and is still running :-

  1. The compressor and the  line connecting to it should be very hot.
  2. Touch the radiation coil,  should be cooler on one side and hotter on the other or hotter at the top getting cooler as it goes down.
  3. You can feel the filter dryer and the thin capillary tube connected to it  and you will feel liquid is passing through it …
  4. The fridge should sound like a blizzard if you put your ear to it.
  5. Switch it off and you should get gurgling sound as the fridge balances itself out.

Major Problem : Fridge doesn’t cool properly

1. Could be a choke or a leak  in the cooling system,

2. Could be a  clogged filter dryer or  capillary tube, or worse in the radiator or co

http://www.ehow.com/info_12192818_clogged-filter-dryer-liquid-line.html

http://fridgeman.wordpress.com/2008/06/14/filter-dryers-and-capillary-tubes/

3. Could be a gas leak  or low on gas because of age or leakage ..

http://wiki.answers.com/Q/How_do_you_know_if_your_refrigerator_needs_freon

The fridge has to be regfilled with R134a

Major Problem : Fridge does not start !

Check the relay

Check  the  compressor

Check the Cooling system, for problem with the defrost Circuit board or mechanical defrost timer.

Service and parts guy in Mumbai,

Lamington Road

Devi Sales at Dadar  in Mumbai keep parts and service all fridges and A/Cs.

Supra Service Helpline No: 9821516165, 9167761722, 28670125

Check out

http://www.appliance411.ca/faq/howdefrostworks.shtml

http://www.repairclinic.com/Refrigerator-Troubleshooting

If ur a techie try reading The Fridgeman Blog .

Printer Inkjet Cartridge Cleaning, Refilling and Maintainance.

I tried my hand at refilling my old Canon PIXMA iP1800 a part of the 1600/1700 /  printer series .HP inkjet cleaning ain’t too different.

 

Ink Level Monitoring

Disable the ink level monitors after re-filling the cartridges. Go to properties, maintenance, view printer status, option and uncheck enable status monitor.

Fault Finding and Service

Printer Service required : Printer Properties /Maintenance

1. Printer head Alignment : for Misaligned prints.

2. Roller Cleaning : If there are vertical lines on the paper it is the rollers that are the problem. If rollers make a creaking sound oil the roller ends.

3. Smudges : Bottom plate cleaning

Cartridge problems

1. Cartridge not detected /doesn’t recognize the Ink Cartridge : Ink  has dried up completely on the rectangular head.

2. If prints are bad, or if  there are horizontal white lines in place of ink on the paper the Ink Cartridge nozzles partially blocked.

Cartridge Cleaning using Software

Using Cleaning option in Maintainance can rid you of minor clogs in the cartridge.

Deep cleaning is a sheer waste of ink, and is best avoided.

Manual Cleaning involves using IPA or warm to boiling hot water to unclogg and loosen up dried ink from the head of the cartridge nozzles. A clean head leaves a neat ink train on a soft tissue. Cleaning involves :-

1. Using a clean soft tissue dabbed in  Iso Propyl Alcohol , to wipe the head.

2. Using a clean soft tissue dabbed in warm water, to wipe the head.

3. Soaking the ink cartridge head in warm water for 2 to 5 minutes.

4. Soaking a clogged ink cartridge head in hot water for 2 to 5 minutes.

4. Soaking a undetectable ink cartridge head in boiling hot water for 3 minutes or using steam to clean them up .

6. Opening a dead cartridge and cleaning it up with hot water and then resealing it.

You can spray the clogged head with hot water too and wipe with cotton or a soft dry paper tissue.

Chk out :

How to Manually Clean an HP Ink-Jet Cartridge

Removing Air Bubbles From Ink Cartridge Print Head

Refilling Cartridges

Dont let the empty cartridge run dry, keep empty cartridge airtight by putting a tape over the head or cling wrapping them, emulate how new cartridges have orange tape.

Refill from a good/reputed re-filler or he will damage the cartridge. Else buy a kit with ink specific to your printer, 5 /10 cc syringes and needles and a universal suction adapter to remove air bubbles.

DIY refilling is messy business. Black is easy, Color cartridges are more difficult to refill. Clean the cartridge head before a refill.

Instructions on how to clean Hp cartridges (Mute volume)

HP Cartridge Refill video

Canon Cartridge Refill video (Mute volume)

Counter Reset tips for Canon Pixma  1600/1700/1800  printer series series:

1. Switch on the printer and press Resume button and hold for 1 – 2 minutes

2. Open the cover remove the cartridge and then put them in.

3. Close The Cover, turn off the printer,  turn it on again.

Or you can use IPTool software to reset the page counter when you use refilled cartridges. Download IPTool

*Images are not mine .

Sewing with a Sewing machine

I have this fashion stitch sewing machine that my sister insisted on buying, but it turns out that she never intended to stitch but to use me as her unofficial alterer or tailor.

Even after a couple of yrs, i didnt quite know how to properly use it and the only thing i did was to use the straight and zigzag stitch. So thanks to you tube i finally figured out how to stitch on a sewing machine.  Now i got to figure out how to teach her to stitch, and maybe this post will.

Which?: How to use a sewing machine

http://www.youtube.com/watch?v=Au7TyWPuyCY

http://www.youtube.com/watch?v=l5O5iFGbIKk&feature=relmfu

Singer Basic Stitches Tutorial

http://www.youtube.com/watch?v=Hq-ISOE9_q8&list=UU3FgggWdfzt–MIr_iOVElA&index=18&feature=plcp

Singer 8280 demo

http://www.youtube.com/watch?v=nyOw4TDm3ac&feature=related

CraftyGemini tutorials

http://www.youtube.com/watch?v=sVP-pfjdyeE

Expert village tutorials

http://www.youtube.com/watch?v=-z2Kw488Ocg&feature=results_main&playnext=1&list=PL1EE4C33EF5E6E95D

How To Make a T-Shirt Grocery Bag

http://www.youtube.com/watch?v=USAhz8N1g2E&list=UUbi-AvancC-OWRyRkd0M1Xg&index=43&feature=plcp

Sewing Basics #1: How to finish up raw edges

http://www.youtube.com/watch?v=YcL6L0YesFM&feature=relmfu

Sewing Basics #2: 7 Ways to Attach/Use Elastic

http://www.youtube.com/watch?v=y1ZD88zs6eU

Sewing An Elastic Waist Band

http://www.youtube.com/watch?v=6FqtMjJBXXY

http://www.youtube.com/watch?v=Bn9qL9lB7Wc

Faultfinding my Whirlpool 350 L FF Elite Refrigerator

I have been taken for a ride by the Whirlpool Service guys n number of times as most likely than not you have too. If you figure out the system u could diy repair or make sure that the service man is qualified or some anadi sent by the service co. In India the multi-meter is an alien object to the repair guy. No wonder we face shoddy service.

The 7 year contract of my Whirlpool FF 350 L Elite model , imported from brazil,  REFRIGERATOR BRASTEMP BRM35A 350 FROST FREE  just ran out, and the way the service standards of whirlpool are, continuity tester in hand  i bravely decided on doing the faultfinding myself. Actually most FF fridges are similar and the same rules apply to most fridges..

Chk out my Detailed Faultfinding Post Here 

https://techntrek.wordpress.com/2012/12/01/fridge-testing-fault-finding-and-basic-repairs/

 

 

Indian Congress party ( INC ) is more opportunistic than Secular.

Homosexual intercourse was a criminal offence until 2009 under Section 377 of the Indian Penal Code, 1860 … A british legacy.

Sec 377 was a great source of underhand revenue for some crooked cops, and naturally a major tool for intimidation and harassment of the rainbow community.

This law was struck down by the 2009 Delhi High Court decision Naz Foundation v. Govt. of NCT of Delhi, which found Section 377 and other legal prohibitions against same-sex conduct to be in direct violation of fundamental rights provided by the Indian Constitution.

Many educated Indians have moved on and dont find it a big deal.  Movies like Onir’s My brother Nikhil had mainstreem actors and was accepted in bollywood , it didnt face shutdowns or protests.

We even laugh at

No one except the deobandis, the church, the BJP and some devout followers that considered gay sex as a disease made some noise.

The health minister Ghulam Nabi Azad was one of the loudest

LGBT s come out all guns blazing in the media against his outrageous statement and Congress calculates the quantum of loss / error of judgement and makes him explain his statement.

Come 2012 election time:  16 February 2012, the Supreme Court, during a hearing of a bunch of appeals filed against decriminalization of gay sex, observed that homosexuality should be seen in the context of changing society as many things which were earlier unacceptable have become acceptable with passage of time.

The Sonia congress upa stand?

Centre tells Supreme Court gay sex immoral, calls for new ban

ASG Malhotra has already argued the case for more than three hours, while the home ministry , ASG Jain flip flops

This is during the UP elections when its senior politicians have made a mockery of the law and of the Election Commission to draw in the Muslim vote in UP.Muslims are a huge vote bank … a Majority block of votes that can make or break a party’s fortunes.

Come the last day of UP Elections, the Sonia congress does a royal about turn in the Courts, to which the court reacted

“Don’t make (a) mockery of the system. ASG Malhotra has already argued the case for more than three hours. Don’t waste the court’s time,” the bench said.
“You do not have to argue fresh … You are appearing for health ministry. Tomorrow someone may say that Jain was not authorised to argue the case. We do not want to embarrass you,” the bench said.

Looks like Sonia Congress UPA is Duplicitous , and no less communal. It is worried about the backlash of its Muslim vote bank when it comes to elections.

If BJP has their VHP then Congress has their Deobandis.. no wonder its stand changes in sync with the election calander..

Ghazal Maestro Jagjit Singh 1941-2011

The man who did everything straight from his heart, be it singing or talking politics.. Jagjit Singh will always be remembered not only for his gazals but also as an incredible human being.

Badi nazuk hai yeh manzil

Baat Niklegi To Phir Live

Hazaron Khwahishen Aisi – Mirza Ghalib

Tumko Dekha To Ye Khayal Aaya –  Saath Saath

Tum itna jo muskura rahe ho – Arth

Tera Chehra – Live

Hoshwalon Ko Khabar kya