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RTD Switch wiring

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(@blksabbath)
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Joined: 6 years ago
Posts: 4
Topic starter  

I'm not sure what I'm doing wrong but I can't get the switch to work.  I've soldered everything up twice now on two separate switches thinking the I melted the first.  When it's all hooked up I get the "Oral" error message on the PID.  Bypassing the switch with my RTD works.  Take a look and see if there is something obvious.  Do I have the right resistor?


   
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michael
(@michael)
Member Admin
Joined: 10 years ago
Posts: 198
 

Can you please try the following, just to see if the switch is still working?

Attach your multimeter to pin 1 and 7 and check for continuity. If no continuity, change the switch position. Once you read continuity, measure between 2 & 8 and 3 & 9.

Change the switch position and do the same for 7 & 4, 8 & 5 and 9 & 6.

Let me know you findings…


   
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(@blksabbath)
New Member
Joined: 6 years ago
Posts: 4
Topic starter  

I'll check tonight.  I still have one more unused switch in case I messed this one up soldering.

Everything else appears to work as planned.  I need to add the element to my kettle and then can get back to brewing.


   
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(@blksabbath)
New Member
Joined: 6 years ago
Posts: 4
Topic starter  

I measured continuity between pins 1 thru 6 with 7,8, and 9.  The readings look correct?  Unless pin 8 is fried? Except there’s continuity between 2 and 8.


   
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michael
(@michael)
Member Admin
Joined: 10 years ago
Posts: 198
 

5-8 and 5-9 does not look right. 5-8 should have continuity and 5-9 should not. Worst case, take a new switch attach the wires without soldering and see if it works. It's easy to fry the switch when it gets too hot.


   
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(@blksabbath)
New Member
Joined: 6 years ago
Posts: 4
Topic starter  

Thanks for all the help BTW.  It's very much appreciated.

So pin 5 might be fried maybe.  I'll get another switch and give it another shot.  I'd like to find some push-on connectors for the switch pins to make this a whole lot easier.  I'm not terrible at soldering, just out of practice I guess.


   
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michael
(@michael)
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Joined: 10 years ago
Posts: 198
 

Anytime! Yeah, I hate soldering small stuff!


   
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