You can jumper across the two orange wires and see what happens.

 

With the key pad connected and the relay energized it is fuctional for the Clock and the count down timer no problem. Selecting any other function and it will not start I suspect due to the door switch?

correct...
note, usually there is more than one. i just changed one of 3 door switched in my microwave.

 

You can jumper across the two orange wires and see what happens.


View attachment 363667

Jumpering the two orange wires shuts down the power to the relay?

 

Jumpering the two orange wires shuts down the power to the relay?

I am assuming that the two orange wires come from multiple lock-out switches and/or over-temperature sensors.

 

I am assuming that the two orange wires come from multiple lock-out switches and/or over-temperature sensors.

I suspect you are right. Still no idea what powers the display relay?

 

I am assuming that the two orange wires come from multiple lock-out switches and/or over-temperature sensors.

If I remmember correctly on teardown I removed three micro switches and two temperature sensors?? To bad the wiring is not still in tack so I could find that door closed switch circuit which I assume allow the start button on the key pad to work. Or is it more complex than that?

 

If I remmember correctly on teardown I removed three micro switches and two temperature sensors?? To bad the wiring is not still in tack so I could find that door closed switch circuit which I assume allow the start button on the key pad to work. Or is it more complex than that?

Did you try joining the two orange wires?

 

Did you try joining the two orange wires?

Yes I did as in post 24 it shuts down the power to the relay

 

Yes I did as in post 24 it shuts down the power to the relay

What happens when you bridge the two orange wires as well as bridge across the small relay contacts?
(Don't connect the relay contacts to anything else.)
Does the control panel and display operate?

 

What happens when you bridge the two orange wires as well as bridge across the small relay contacts?
(Don't connect the relay contacts to anything else.)
Does the control panel and display operate?

Ha thanks MrChips. Yes the control panel and display do operate with the two orange wires tied together. With the program set to defrost the relay can be heard opening and closing. I did check the vo;tage across the relay contacts but there is none.

 

Ha thanks MrChips. Yes the control panel and display do operate with the two orange wires tied together. With the program set to defrost the relay can be heard opening and closing. I did check the vo;tage across the relay contacts but there is none.

There should be no voltage at the large relay contacts. You can use the contacts to control an external device.

 

There should be no voltage at the large relay contacts. You can use the contacts to control an external device.

Thanks again MrChips I was over looking the purpose of the relay. I will have to supply the voltage at these contacts and what ever I wish to control externally..

 

What happens when you bridge the two orange wires as well as bridge across the small relay contacts?
(Don't connect the relay contacts to anything else.)
Does the control panel and display operate?

I placed a micro-switch on those two orange wires which simulate opening and closing the door. With switch off door open switch on door closed. With door closed and a bridge across the small relay all seem to function as normal but how do I wire the contacts on the large relay to use it as a timmed circuit?

 

I would think Active wire to one top connector on the relay, the other one goes to the load, then the other side of the load to the Neutral.

 

I would think Active wire to one top connector on the relay, the other one goes to the load, then the other side of the load to the Neutral.

Thanks dendad I tried that?? don't work?? got a big boom and a lot of smoke

 

Sorry, I have not read all the posts.
Have you measured the AC volts that may be on the relay contacts in at rest and operated?

 

As I see it, the two quick connect terminals on the top of the relay should be isolated from the board.
The reason for the big boom and a lot of smoke needs to be investigated and explained.

 

Sorry, I have not read all the posts.
Have you measured the AC volts that may be on the relay contacts in at rest and operated?

Sorry dendad my bad I must have struck ground somewhere?? With the black active wire to the top terminal the other conector to the load and from load to white neutral wire it do work as it should. Thanks for your input appreciate it