Heating phase trips circuit

Experiencing technical problems? Look here for help!

Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 6:19 am

I have an emergency!
I brewed yesterday, everything went perfectly as expected on my 50L (2011). I cleaned as I usually do, even heating up some sodium percarbonate and pumping that around. Once this was done, I emptied the unit and inverted it, opening the pump covers and removing the impellers for cleaning.
Today, I reassembled the unit and filled ready to brew again...

Connect power - display is working
Prime pumps - no problems
Set program - no probs
Start program - pump does its thing as usual ...then as soon as the heating phase begins the circuit breaker trips!

I tried a few more times ...same result. Then I attempted to start heating manually ...same result. Next, I changed power outlets (I have two 15amp circuits) ...same result.

I thought it must be a heating element issue, so I checked them with a multimeter ...both seem to be functioning correctly.
I even opened up the control box and looked for moisture or shorts, but there is nothing obvious. I am lost for ideas!

Please, if you have any ideas and suggestions, fire them at me. I'd really like to get this sorted.
Thanks in advance. :cheers:
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 6:22 am

I should also add that I tried this with 2 different power cables and with/without 2 different extension leads ...all leads and connections rated for load and working well prior to this problem.
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby IPA » Sun Jul 08, 2018 6:39 am

If you are able ( technically) connect the elements directly to the mains supply and see if it trips out. You did not say if it is an overload trip or an elcb trip ( elcb rcb rcd or whatever they call them these days)
IPA
 
Posts: 203
Joined: Tue Feb 25, 2014 8:16 am
Location: France
Model: 50 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 7:06 am

IPA wrote:If you are able ( technically) connect the elements directly to the mains supply and see if it trips out. You did not say if it is an overload trip or an elcb trip ( elcb rcb rcd or whatever they call them these days)


My circuit breakers are MCB's which protect against overloads and short circuits. I don't really see how to isolate the elements and connect to mains power (safely anyway).
I may have to visit a small appliance technician?
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 7:37 am

Okay... so I thought about it some more and disconnected both elements from the control box. I set control to manual and pressed the "heat" button - the display stayed on and the unit remained powered. So I think I can rule out a problem in the control switch.

Next with the "heat" still on, I connected the outer heating element - power remained on and active (heating from 19deg to 20 deg celsius if anyone is wondering).

Then, I connected the inner element - the circuit tripped straight away. I checked element with multimeter again and it's saying its okay in terms of continuity, but obviously there is a problem relating to the connection.

I also notice in the process that if I power the BM on when connect to an outlet it powers up okay (until the heating issue), but if I plug it into a powered socket or extension cable it trip the circuit straight away???
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 7:42 am

Just started the BM with only the inner element connected. Got to the "heat" issue and tripped. Tried again with only the outer element connected and it appears to work fine!

I don't suppose I can boil 70L with one element?
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 12:33 pm

Further update... I just swapped the inner/outer element connectors and repeated the tests. Definitely an issue with the inner element!
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby mashy » Sun Jul 08, 2018 3:45 pm

Yup. Good call. You have proved the issue.
Reading through I thought element(s).

Did you test terminal to terminal and terminal to earth?
No matter.

Yes you should be able to boil on one... Will take longer. You can always pop some on the stove and add it back. That will speed it up.
User avatar
mashy
 
Posts: 2650
Joined: Sat Aug 29, 2015 12:43 pm
Location: Mercia
Model: 20 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Sun Jul 08, 2018 10:49 pm

mashy wrote:Yup. Good call. You have proved the issue.
Reading through I thought element(s).

Did you test terminal to terminal and terminal to earth?
No matter.

Yes you should be able to boil on one... Will take longer. You can always pop some on the stove and add it back. That will speed it up.


Good ideas, mashy. Could be a while before I get a replacement. I'll begin the hunt for a local supplier today ...hopefully they will have some in stock!
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby mashy » Mon Jul 09, 2018 5:45 am

If you can get through mashing. Something like these would help with boil!


https://www.amazon.com.au/Portable-Imme ... +immersion


https://www.amazon.com.au/Precision-742 ... +immersion
User avatar
mashy
 
Posts: 2650
Joined: Sat Aug 29, 2015 12:43 pm
Location: Mercia
Model: 20 litres

Re: Heating phase trips circuit

Unread postby Sladek789 » Mon Jul 09, 2018 8:18 am

I got that one to heat my sparge water or speed up time to reach boil or to serve as backup heating source.
https://www.ebay.com.au/itm/Portable-Qu ... 2179110171

Workrs great, I guess you would just need to change the socket.
User avatar
Sladek789
 
Posts: 86
Joined: Thu May 18, 2017 3:45 pm
Location: Prague, Czech Republic
Model: 50 litres

Re: Heating phase trips circuit

Unread postby roomfullofmirrors » Mon Jul 09, 2018 11:44 am

Sladek789 wrote:I got that one to heat my sparge water or speed up time to reach boil or to serve as backup heating source.
https://www.ebay.com.au/itm/Portable-Qu ... 2179110171

Workrs great, I guess you would just need to change the socket.


Thanks Sladek789. Looks like a good addition any brewers arsenal.
roomfullofmirrors
 
Posts: 31
Joined: Sun May 18, 2014 9:49 am
Location: Queensland, Australia
Model: 50 litres

Re: Heating phase trips circuit

Unread postby mashy » Mon Jul 09, 2018 12:21 pm

.....and that has a basic stat on it, so set it and 98c [just under] so the BM can control. Bingo.

Also available (sort of) in the UK.

https://www.ebay.co.uk/itm/Portable-Qui ... XQlgtSuSad
User avatar
mashy
 
Posts: 2650
Joined: Sat Aug 29, 2015 12:43 pm
Location: Mercia
Model: 20 litres

Re: Heating phase trips circuit

Unread postby Sean » Sun Dec 16, 2018 2:47 am

Hello there,

I have just purchased a brand new 50L Plus. Today was the day for 1st brew, however, the circuit (had an electrician install a dedicated 15 amp switch) breaker keeps tripping. Same problem you had, the inner element is tripping the circuit.

Will be back to the seller on Monday for repair but was wondering what you had to do to fix it?

Regards

Sean
Sean
 
Posts: 4
Joined: Sat Dec 15, 2018 6:45 am
Model: 50 litres

Re: Heating phase trips circuit

Unread postby mashy » Sun Dec 16, 2018 7:25 am

Welcome aboard.
There is an enormous amount of info on here. Pull up a chair :D welcome.

Just cos the circuit breaker tripped does not mean its faulty. Could be the wrong rating or your of breaker.

All you know is that there's a problem.

Have you tested the element? I would get the electrical back - he can test for, and find the fault.

When you do get it running, do a water only run first. It will test everything, wash everthing in boiling water and give you a chance to see how it works. First brew day will be a lot easier.

Where abouts are you.. Electical supply/regs/options can vary quite a bit.
User avatar
mashy
 
Posts: 2650
Joined: Sat Aug 29, 2015 12:43 pm
Location: Mercia
Model: 20 litres

Next

Return to Technical Support

Who is online

Users browsing this forum: No registered users and 3 guests