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Re: SIMPLE PCB REPAIR TIPS
baron wrote:
LJDomestics wrote:
just done a repair to exact same board as chris has posted here, FAULT = NO HEAT ( d3 ) locate and change the little resistor that says IN4007 24C1N4007 it’s a diode not resistor…
neilsukwg wrote:Does this meter allow you to test a capacitor while still in circuit?
NeilIt’s cheaper to unsolder at least one leg of capacitor for measurement instead of buying expensive tool… before measurement make sure to discharge capacitor and do not replace him if is inside tolerance of 10{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} of his value (isn’t necessary)… This is applying to unpolarized capacitor like those from above photos and not to those electolitics (polarized) which have to be changed if are not keeping voltage…
Electrolytic capacitors is what i was referring to when using the meter …you cannot accurately measure an Electrolytic capacitor with out using an ESR meter , the capacitance is not the main issue with electrolytic capacitors it’s the equivalent series resistance that is the main cause (ESR ) .
Yep you are right the 1N4007 is a diode..
Shaun
Re: SIMPLE PCB REPAIR TIPS
iadom wrote:HOTPOINT/INDESIT. Flashing all display lights.
Excellent advice from forum member Lasty.
In most cases the largest of the three adjacent capacitors on the main board rated 680u – 10v …. has failed.
The top of the capacitor appears domed.
Replacement costs all of 17 pence.
Jim..Re: SIMPLE PCB REPAIR TIPS
Hi
I have come across the flashing lights fault on hotpoint’s twice in the last couple of months.
Luckily last time i had the correct used module to fit .
However on this occasion i had read your post on here, i changed the capacitor on the board , and was happy to find it worked.
Thanks for your post !
colinRe: SIMPLE PCB REPAIR TIPS
yep done one today.
these capacitors will be on the van soon. welcome to colly i’ve known him for years. another mate is finally joining next week i think.
keithRe: SIMPLE PCB REPAIR TIPS
Whirlpool ADP4601 cutting out when main motor starts to run, I have now done two of these dishwashers pcb repairs with no callbacks so thought I would post it here, I ordered and replaced the 10v 1000uf cap on the board and it worked ok, the original capacitor in both cases showed NO sign of doming or damage…..make sure that the new capacitor is fitted with the correct polarity as I didnt first time and it blew after 5 washes.
paul
Edited to add 2 pictures.
Don
Bosch WAE24464
The Bosch washing machine was heating intermittently, appeared to be stuck on wash and then would jump to 1 min display and stick there until switched off. Cold wash was no problem so heating circuit was suspected. After much testing I found that the heater control relay on the power module, tyco T7S VSE6-09-WG was intermittent. Renewed it and machine back to normal.
Relay is indicated with arrow.
Inspecting the old relay and dismantling, the relay contacts were badly burnt, looks like a weak spot.
The full thread of this appears elswhere in this site, but I thought it would be useful to post here as well.Re: SIMPLE PCB REPAIR TIPS
I don’t know if this is elsewhere on the site.
Whirlpool capricorn boards for ovens.
If there’s no visible damage to board when you get the F03 fault, cut the resistors the same as you would for a new board.Most times, it’ll work as it’s only the software that’s corrupted.
If anyone needs the table for the resistors, let me know and I’ll post them.
Brian
Re: SIMPLE PCB REPAIR TIPS
Pictures tell the story here. Machine was totally dead. Primary was o/c.
New transformer from RS is at top.
Bit of a pig to get old transformer out though.
Mike.Re: SIMPLE PCB REPAIR TIPS
just thought i would add these two faults to this post
miele auto late series similar to w1514
this is the one the board is shaped around the door
two faults
fault one
machine switches on you can set a programme and machine switches on but goes into fault mode after about 30 secs. upon inspection the motor on the soap draw was running constantly. when i took the motor unit to bits i found condensation had formed a carbon track on the pcb that had blown a 150 ohm resistor just to the right of the display next to a plus sign on the board
cleaned soap draw pcb and applied paint to insulate replaced resistor machine ok
Total repair cost under £10. miele had quoted £280 for a new board but they would have got a shock when the new board went faulty due to the soap draw fault
Fault 2same board.
fault switch machine on and set programme. machine starts ok but at varying times programme display goes blank on machine switches off.
Upon inspection I found the 5v supply to the chips was falling and when it go down to about 3v the board died through lack of power. 5V reg chip is situated just below the door open push button on the board numbered KF50. ordered new chip and replaced board ok total repair cost £1.74hope this helps
Dave
Re: SIMPLE PCB REPAIR TIPS
whirlpool washers have a similar fault 2 capacitors on the timer pcb bulging cause door lock light to flash and the machine not to start. O/C motor triac does the same
Re: SIMPLE PCB REPAIR TIPS
Forgot to mention in earlier post most of the hotpoint/inde pcbs are the same ( except for the economy range inde’s and the 3 phase stuff ) If you’ve got a board gone that you cant repair but have a spare one maybe from a different machine I’ve lifted the soldered eeprom from the faulty pcb and soldered it into the replacement with 100 {e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} success, no need to program or mess about with a eeprom reader since you’re using the original eeprom with all the right info on it.
Re: SIMPLE PCB REPAIR TIPS
LG washing machine, belt drive showing “SE” fault
The cause was traced to the Hall sensor on the back of the motor. The Hall sensor for the belt drive does not appear listed. Remove the single screw and the sensor assembly twists off the motor. Carefully remove the potting compound and remove the pcb.
Using a multimeter the resistance reading between VCC and SB,SC and SA should be similar. If not the check the surface mount components starting with links marked 000.
There are 3 resistors marked 331, and 5 capacitors coloured brown and 4 links marked 000. In my instance it was the link, marked with an arrow on the photo, open circuit. This was carefully linked out with a strand of wire and tested OK.
Re insert pcb into plastic holder and repot with a suitable insulation material.
Re: SIMPLE PCB REPAIR TIPS
SMEG Dishwasher
Symptoms: Little to No Heat, Washes forever, Pauses and Bleeps every couple of Minutes.
Cure: Replace the 3 capacitors ringed in the second imageJem
Re: SIMPLE PCB REPAIR TIPS
Hotpoint/Indesit/Merloni Dishwasher Bit100 PCB
Symptoms: Little to No Heat, Heating Timeout ErrorCure: Replace the 2 ringed capacitors
- 0.022uF 330VAC Capacitor
Jem
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