Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
|
|||
|
|||
washing machine door lock
I havea Fridgerdaier front loading washing machine and since it was
new the door has buzzed after closing and when running a cycle. At first it was tolerable but since then and now out of warrantee it makes an awful buzz. Having takne it apart it has a simple solenoid that is supposied to hold tight. Since the solenoid runs on 60 Hz directly it loses it's magnetic field twice a cycle. Hence the buzz. My ? is how did they expect it to be quiet when designed and how can I be sure the new one ( $65!! ) will be any different. I am sure that I can modify/add circuitry to the system , for about $5.00 so that the solenoid is DC powered, at a lower voltage . Can anyone offer their input to this. I have searched the internet but I seem to be the only person with this washing machine problem! |
#3
|
|||
|
|||
washing machine door lock
Sam Goldwasser wrote in message ...
(ron doctors) writes: I havea Fridgerdaier front loading washing machine and since it was new the door has buzzed after closing and when running a cycle. At first it was tolerable but since then and now out of warrantee it makes an awful buzz. Having takne it apart it has a simple solenoid that is supposied to hold tight. Since the solenoid runs on 60 Hz directly it loses it's magnetic field twice a cycle. Hence the buzz. My ? is how did they expect it to be quiet when designed and how can I be sure the new one ( $65!! ) will be any different. I am sure that I can modify/add circuitry to the system , for about $5.00 so that the solenoid is DC powered, at a lower voltage . Can anyone offer their input to this. I have searched the internet but I seem to be the only person with this washing machine problem! AC solenoids have a thick copper "shading" ring on the pole piece. It's purpose is to delay the decay of the magnetic field so that the solenoid will produce a more constant pull even though it's AC. Assuming that the shading ring is present, it may just be a matter of repositioning it for a slightly shorter or longer throw. Thanks for adding this.. Id id check teh spcing on the solenoid and the plunger di not seat fully, with some grinfing I made the fit better and yes the buzz is reduced. However it still buzzes sometimes. I have now made acircuit cost under$5.00 that does this: 1. It charges up a 22 mfd cap to 160 volts ( 120 x 2.8 )from the 120 line 2. Discharges the cap thru. the solenoid via sensitive-gate SCR. 3. Maintains the solenoid at about 16 volts by using a series resistor to limit the current. Parts are easy to get at Mouser.com and simple to solder together. The washer door solenoid is now completely SILENT!! holds better ( DC ) and it closes very well. If anyone is interested in the complete circuit I will post it, let me know. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Self-Reproducing Machine Tools | Metalworking | |||
blocks of stuff in drain out of washing machine | UK diy | |||
Problems with Siemens Washing Machine WM53661BY | UK diy | |||
Secondhand washing machine motor | UK diy | |||
Zanussi washing machine - blown program selector | UK diy |