[How to diagnose a failed timer]

Hi Bill,

I have yet to add the new switch, as I've had a lingering idea. You helped me greatly in another post I made re: a Euclids 208V kiln a while back and wondered if you have any wisdom to share.

Basically this 208V kiln needs to be rewired for 240V for me to use it. It also has a precious computer. I am wondering if I could take off the computer and rewire it with the Duncan kiln (above) I currently use.

Just maybe I could kill two birds with one stone - upgrade my Duncan and make use of this extra Euclid kiln kicking around. Your thoughts and opinions are always welcome! I will post both kiln diagrams below. 

Like always - thank you ... and learning lots

Duncan_W-DA-1029-2-Control-Panel.pdf Euclid_CRT180AF diagram.pdf

[How to diagnose a failed timer]

On 1/31/2023 at 11:13 PM, Bill Kielb said:

This may help and I think this might illustrate Neil’s description above

Bill, I can't thank you enough for taking the time to map this out for me and share. I have been looking it over again and again to familiarize myself with it. I foresee myself taking on the challenge... with my electrician uncle (I am a novice!)

On 1/31/2023 at 6:18 PM, neilestrick said:

Assuming the wiring diagram above is the correct one for your kiln, you've got 3 sets of elements and only two infinite switches, so you'll need to add one more switch. 

And thank you, Neil! I'm determined to make this silly Duncan kiln work for me. Having each set of elements on an infinite switch will be a game changer.

[How to diagnose a failed timer]

12 hours ago, Bill Kielb said:

adding a third infinite switch is probably the best fix I have seen for these

Thank you so much to everyone! It sounds like it's likely the RCT that's burnt out.

Ideally, I want to control the bottom coils, not a timer. If it's not too much trouble, is anyone able to explain how I would go about adding a third infinite switch? Would this allow me to control the relays for the bottom coils that are always closed/turned on?

According to the kiln theory manual, the only way to get "low" heat is by having the RCT cycle the coils on and off every 60 seconds.

[How to diagnose a failed timer]

Hi all, 

I'm wondering how to know or test whether you need to replace one of your timers on a manual kiln. I have two timers that I'm questioning:

4300 Fixed Interval Timer

or

4600 Repeat Cycle Timer

 

The problem is that the bottom coils on my manual kiln turn on "high" when the kiln sitter is turned "on," with all the infinite switches turned off.  I'm unsure whether it is a relay that died in the "closed" position or if it is a timer not working, because my kiln manual also says the bottom coils are directly connected to the power supply (which would explain them turning on when the kiln turns on).

Any help would be greatly appreciated. I'm (slowly!) trying to learn how to service my own kiln.

 

W-DA1029-2-Therory.pdf W-DA-1029-2-Control-Panel.pdf