GE Dishwasher Hack

[pbillly]

Hi, Me ge dishwasher refuses to operate when it senses that the revolving
arm is not moving. I've tried to repair this via the book but it just
doesn't wash, (no pun intended).

I need a circuit which will send a false signal to the "brain" to indicate
the arm is revolving. A one or 2x's per second interupiton of the 12vdc
voltage on the pin should do this.

Any suggestions?
thanks

 

[Sam Goldwasser]

Hi, Me ge dishwasher refuses to operate when it senses that the revolving
arm is not moving. I've tried to repair this via the book but it just
doesn't wash, (no pun intended).

I need a circuit which will send a false signal to the "brain" to indicate
the arm is revolving. A one or 2x's per second interupiton of the 12vdc
voltage on the pin should do this.

Any suggestions?

Fix the arm rotation?

Do you mean it won't start if the arm is stationary as it should be?

Or it shuts off which is proper?

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[pbillly]

Well, the arm rotates and is suppost to have a magnet embedded in it which
triggers a sensor mounted to the side of the washtub. Problem is the whole
system is working against me since the are and sensor are both faulty and
cannot be replace conviently nor economically.
Thus I am forced to find a completly new solution or buy a new dishwasher.

 

[Sam Goldwasser]

Well, the arm rotates and is suppost to have a magnet embedded in it which
triggers a sensor mounted to the side of the washtub. Problem is the whole
system is working against me since the are and sensor are both faulty and
cannot be replace conviently nor economically.
Thus I am forced to find a completly new solution or buy a new dishwasher.

So how well is it washing dishes if the arm is faulty? The sensor may
just be a magnetic reed switch which is easily replaced with a generic
part. I can't say what to do about the arm.

You can probably fake it with a simple 555 timer driving a relay to
replace the reed switch.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
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[James Sweet]

Well, the arm rotates and is suppost to have a magnet embedded in it which
triggers a sensor mounted to the side of the washtub. Problem is the whole
system is working against me since the are and sensor are both faulty and
cannot be replace conviently nor economically.
Thus I am forced to find a completly new solution or buy a new dishwasher.

What sort of sensor is it? There's hall effect sensors and read switches
that I'm aware of, both of which are readily available, seems like it'd be
easier to hack in a new sensor if you're sure that's the problem.

 

[pbillly]

The dishwasher works good. I completely replaced the washer arm, except the
new are is sold without the magnet embedded. The sesnsor is a reed switch
mounted in a special case mounted outside the tub. Very, very tricky to get
the whole shebang to work without hangups.

I just want to replace the trouble proned system and "trick" this over
engerneerd part. The 555 timer with a relay is realy the answer, if feel.
The practical imlementation of this what I need. For example is it possible
to get to run using the AC or does it need a battery. What exacty does this
circiuit look like? I would like this to operate automatically when I turn
on the system without maintainance.

Please help with a schematic, if possible.
thanks

 

[Sam Goldwasser]

The dishwasher works good. I completely replaced the washer arm, except the
new are is sold without the magnet embedded. The sesnsor is a reed switch
mounted in a special case mounted outside the tub. Very, very tricky to get
the whole shebang to work without hangups.

Are you sure you got the correct replacement?

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
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| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

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[Sofie]

pbilly:
This sounds like a chewing gum and bailing wire repair approach to me.
Instead of taking all of this time (and time is money) to do a "hack" repair
which may not be reliable and safe, why not just do it correctly with the
proper part?
Have you talked to an appliance repair person about this?...... maybe you
may glean some insight from someone who works on this stuff all the time.?

 

[RICHARD1]

I have lit on 555 circuit and examples gonna have to go to my get the
books and do a scan for ya if ya want if ya dont get info sooner
could take days

 

[Sam Goldwasser]

I have lit on 555 circuit and examples gonna have to go to my get the
books and do a scan for ya if ya want if ya dont get info sooner
could take days

The 555 is very well documented on the Web.

--- sam | Sci.Electronics.Repair FAQ Home Page: http://www.repairfaq.org/
Repair | Main Table of Contents: http://www.repairfaq.org/REPAIR/
+Lasers | Sam's Laser FAQ: http://www.repairfaq.org/sam/lasersam.htm
| Mirror Site Info: http://www.repairfaq.org/REPAIR/F_mirror.html

Important: The email address in this message header may no longer work. To
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