Coffee machine that keeps tripping
We have a Jura Z7 coffee machine and I've had to stop using it because it occasionally trips the circuits in the kitchen/dining zone, which is a real hassle because that's where our WiFi is connected, and when that goes off, it takes me forever to reinitialise some of our smart home tech.
I thought it might be attributed to load so I unplugged and switched off every appliance in this zone (apart from our WiFi router) thinking it would be fine, and it still tripped. The irritating thing is that it can run fine for 5 or 6 days (we turn it on in the morning and off in the afternoon), and then for some inexplicable reason it trips the circuits. There is no consistency to it. And it can trip everything even before it has been used. I also know it's the coffee machine that's responsible for tripping the circuit, because this only occurs when it's on.
Thoughts, ideas and suggestions welcome.
Buy a copy of the The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
just but a breaker between the machine and wall socket? Something like the below might work well
https://www.amazon.co.uk/Unicom-53637-Circuit-Breaker/dp/B002K67KAA
Posted by: @editorWe have a Jura Z7 coffee machine and I've had to stop using it because it occasionally trips the circuits in the kitchen/dining zone, which is a real hassle because that's where our WiFi is connected, and when that goes off, it takes me forever to reinitialise some of our smart home tech.
I thought it might be attributed to load so I unplugged and switched off every appliance in this zone (apart from our WiFi router) thinking it would be fine, and it still tripped. The irritating thing is that it can run fine for 5 or 6 days (we turn it on in the morning and off in the afternoon), and then for some inexplicable reason it trips the circuits. There is no consistency to it. And it can trip everything even before it has been used. I also know it's the coffee machine that's responsible for tripping the circuit, because this only occurs when it's on.
Thoughts, ideas and suggestions welcome.
Hi Mars,
Is it tripping the Miniature Circuit Breaker (MCB) for the ring main or the Electric Leakage Circuit Breaker (ELCB)?
If it is the MCB that is tripping then that would indicate some form of short circuit between Live and Neutral causing an overload.
If it is the ELCB that is tripping then that would indicate a leakage current from Live or Neutral to Earth.
The fact that the tripping is intermittent is probably due to some form of water leakage into the electrics of the unit. I would suggest unplugging the unit and removing any covers that are apparent, then look for signs of water leakage/staining. It could be possible that a seal is leaking, which it may be possible to replace if spares are available.
@derek-m, I appreciate the comment, but I'm afraid I don't know the difference between the Miniature Circuit Breaker (MCB) or the Electric Leakage Circuit Breaker (ELCB)? I'll take a photo and share it tomorrow.
I did think about taking the covers off and having a look, but the screws have a weird shape to them and none of my attachments fit it it to open them. Will post a photo of those too.
Buy a copy of the The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Posted by: @editor@derek-m, I appreciate the comment, but I'm afraid I don't know the difference between the Miniature Circuit Breaker (MCB) or the Electric Leakage Circuit Breaker (ELCB)? I'll take a photo and share it tomorrow.
I did think about taking the covers off and having a look, but the screws have a weird shape to them and none of my attachments fit it it to open them. Will post a photo of those too.
Hi Mars,
Just Google MCB and ELCB to see the difference. One easy way to spot the difference is that the ELCB will probably have a Test button.
The screw heads may be TORX, a screwdriver set can be obtained quite easily, just ask Mr. Google.
Buy a copy of the The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
Hi Mars,
I assume that the item in question is the MCB for the downstairs ring main. It is rated at 32A, so either the MCB is developing a fault, or a current of 32A or greater is flowing for a period of time. Since your coffee maker should not draw more than a maximum of approximately 5.6A, it is either drawing excess current or it is the final straw which broke the camel's back.
To confirm that it is the coffee maker that is at fault, you could try plugging it into an upstairs electrical socket, which should be on a different ring main, and hence should cause a different MCB to trip.
Whilst unplugged, I would suggest checking the supply cable for any signs of wear or damage and water ingress. Also check the internals of the unit for any damage that may be allowing water to leak into the internals.
@derek-m, good suggestion. I'm going to hook it up up stairs where there's virtually nothing drawing power and see what happens. I'll try and get around to it this weekend – there's just a small matter of wheelbarrowing 4 tonnes of compost to the vegetable garden that's going to take priority.
Buy a copy of the The Ultimate Guide to Heat Pumps
Subscribe and follow our Homeowners’ Q&A heat pump podcast
- 26 Forums
- 2,208 Topics
- 48.7 K Posts
- 55 Online
- 5,868 Members
Join Us!
Podcast Picks
Latest Posts
-
RE: Mitsubishi Ecodan F8 error
I absolutely love this. This is the quintessential heat...
By Mars , 26 minutes ago
-
RE: Testing new controls/monitoring for Midea Clone ASHP
@papahuhu at the end of the day if you are happy with h...
By benson , 6 hours ago
-
RE: Can you recommend a Mitsubishi service engineer in the Rochdale area?
@dgclimatecontrol We'll all need annual servicing. How...
By Suzy-shadow , 6 hours ago
-
RE: Renewables & Heat Pumps in the News
@transparent I’ve understood your point now. The point ...
By Judith , 6 hours ago
-
RE: Octopus tariffs - a quick comparison
Does indeed need checking, @tim441. Neither Homely ...
By Majordennisbloodnok , 7 hours ago
-
RE: How not to install a heat pump
Delighted to hear that the buffer has been replumbed as...
By JamesPa , 8 hours ago
-
-
RE: Daikin 9kW to 8kW Swap Offer from Octopus
Yes but 9kW is similarly the 16kW derated. So 8kW subs...
By JamesPa , 9 hours ago
-
Actually, there's a rather greater degree of cattle-her...
By Majordennisbloodnok , 10 hours ago
-
RE: The Hidden Secret to a Successful Heat Pump: Pipe Size Matters
@davidnolan22 So far as I can tell from the 'other p...
By JamesPa , 13 hours ago
-
RE: 5 Star Service from Havenwise
I keep getting havenwise ads on my Facebook feed, so cl...
By benson , 16 hours ago
-
Automation options to maximuse efficiency & ToU tariffs
I started a conversation with ChatGPT. What automation...
By Tim441 , 20 hours ago
-
RE: 4 Year Ongoing Heat Pump Battle With Poor Heat Pump Installation
@jamespa Oh, I know some that are good and some not so....
By ASHP-BOBBA , 1 day ago
-
RE: Samsung Heat pump with Yonos Pico circulating pump running all the time
I don't know how many pumps you have but I guess it's o...
By JamesPa , 1 day ago
-
RE: Help me keep the faith with my air source heat pump installation
That's just human nature unfortunately, not special to ...
By JamesPa , 1 day ago
-
@bontwoody how long has it been now since you started t...
By Mars , 1 day ago
-
RE: Bosch CS5800i 5kW - Experience So Far
Yes, over the last few days I've been keeping a very cl...
By Steelbadger , 1 day ago
-
Absolutely. I am one of those members and I most certai...
By Majordennisbloodnok , 1 day ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
@darrell-p There's another new Forum Member, @wully who...
By Transparent , 1 day ago