Author Topic: Need help troubleshooting a distiller electronics fault  (Read 213 times)

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Offline JCINAZ

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Need help troubleshooting a distiller electronics fault
« on: August 17, 2019, 08:07:29 pm »
I am a beginner in electronics. I know a few basics. I have a multimeter that I set to 200 Vac for testing.

I have a distiller I have been using for 10+ years now and recently it stopped working. I am trying to determine where the fault is so I can replace the part. The company that made the distiller went out of business years ago, so I can't call them for support.

What isn't working is:
Heating element isn't starting.
Fan isn't spinning.
The boiler tank floater switch is working as water flows in when it drops.
There is a floater in the holding tank that appears to be working as, when I move it the relay clicks on/off.


I believe the issue is either with one of the switches, Mainpower/Fan/Water or the relay?

Here is what I confirmed:
- It's getting power from wall, as lights are on and certain components work.
- Upper Switch Heater Control is getting 120v
- Lower Switch Water Control is getting 120v
- When I test power on the reset switch, between 2 & 1 or 4 & 3 I get 0 volts. Which I am assuming I should get 120v on each? So an upstream fault?

I am looking for guidance on what components to test and how. Any help would be appreciated.
« Last Edit: August 17, 2019, 08:14:13 pm by JCINAZ »
 

Offline fzabkar

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Re: Need help troubleshooting a distiller electronics fault
« Reply #1 on: August 18, 2019, 04:28:17 am »
Use mains Neutral as your 0V reference for your DMM.

Pins B & C of the main power switch should both be 120VAC.

Pins 1 & 2 of the reset switch should both be 120VAC.

Pins C & NC of the Upper Switch Heater Control should both be 120VAC.

Pins B & C of the fan switch should both be 120VAC.

The voltage between pins A & B of the heater should be 120VAC.

The voltage between pins 23 & 24 of the fan should be 120VAC.

« Last Edit: August 18, 2019, 04:30:25 am by fzabkar »
 

Offline JCINAZ

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Re: Need help troubleshooting a distiller electronics fault
« Reply #2 on: August 18, 2019, 09:19:45 pm »
Thank you for the help. Turns out when I went back to start troubleshooting it, it started working again. I am sure it will stop working sometime soon.

Regarding this statement:
Use mains Neutral as your 0V reference for your DMM.

I believe what you mean by this statement is to take one probe and attach it to the neutral line when testing the different components. The only question I have is on the diagram which label would be "Neutral"?

 

Offline fzabkar

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Re: Need help troubleshooting a distiller electronics fault
« Reply #3 on: August 18, 2019, 09:51:03 pm »
Neutral is the white wire in the power cord. Black is active.
 


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