I have a excel consumer unit, and just had a new cooker fitted and the trip keeps going, manual states I need a 100ma trip but the unit comes with 80amp 30ma trip, does anybody know where I can get a new 100ma trip for this unit (10way)
excel consumer unit
- Thread starter richsemc
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What is the item that is tripping? IS it an RCD?
Please stop saying "trip"
There are several types of circuit protection device. MCB, RCD, FUSE, RCBO etc etc, Some are shown here
The please read the manual again. Are you SURE it says a 100mA RCD is required? That would be most unusual/
Bottom line is: if the 30mA RCD operates when the cooker is connected then there is a fault with the cooker.
Please stop saying "trip"
There are several types of circuit protection device. MCB, RCD, FUSE, RCBO etc etc, Some are shown here
The please read the manual again. Are you SURE it says a 100mA RCD is required? That would be most unusual/
Bottom line is: if the 30mA RCD operates when the cooker is connected then there is a fault with the cooker.
What is the item that is tripping? IS it an RCD?
Please stop saying "trip"
There are several types of circuit protection device. MCB, RCD, FUSE, RCBO etc etc, Some are shown here
The please read the manual again. Are you SURE it says a 100mA RCD is required? That would be most unusual/
Bottom line is: if the 30mA RCD operates when the cooker is connected then there is a fault with the cooker.
Hi thanks for coming back to me
The cooker manual says (in the unlikely event of the RCCB repeatedly tripping contact your hotpoint service office, in some instances it may be necessary to fit a 100 milliamp RCCD) without tripping over.
The oven starts up fine and eventually I have to reset the Excel unit, it the bottom left unit
What model of cooker is it, I would be surprised if they stated 100mA RCCB would be required. As this is unlikely to be true!
Can you confirm which device is tripping, is it the existing rccb that has a test button, who installed the circuit and do you have certificates for circuit if new, if old existing circuit did you have this problem previously?
Can you confirm which device is tripping, is it the existing rccb that has a test button, who installed the circuit and do you have certificates for circuit if new, if old existing circuit did you have this problem previously?
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the cooker is a hotpoint double oven EW81 Halogen and it definitely says it may be necessary to fit a 100ma RCCB Its the centre RCCB with yellow button
View media item 67694 View media item 67695
View media item 67694 View media item 67695
The Hotpoint EW81 online manual I have seen does indeed say that but it was written in 2002 - and it also includes the statement that the cooker should be installed in accordance with the latest IEE Regulations - (BS7671 - 2011).
I really appreciate your help, I think it's probably best if I call my electrician back in who fitted the consumer unit, what do you think
Brand new cooker ? Ive had this several times where they have been commission and instantly trip usually both the MCB and RCD its probably been stored in a warehouse for a few months and a bit of damp has got into the magnesium oxide insulation in the elements problably just needs a bit of warming up.
Or it could be a faulty appliance that has a Live to Earth,Neutral to Earth fault this requires special test equiptment to diagnose, best to get the installer of the cooker back
Or it could be a faulty appliance that has a Live to Earth,Neutral to Earth fault this requires special test equiptment to diagnose, best to get the installer of the cooker back
Has this circuit worked prior to the installation of this cooker?
If you disconnect the cooker does the circuit still trip?
If you disconnect the cooker does the circuit still trip?
I think we have to assume that this is a 'new' cooker to the OP since according to their website Hotpoint haven't made this model for a number of years.
Hence age and faulty elements can be added to your list.
Everything worked fine with previous cooker and had no problems with trip's in the past, only this cooker, oven heats up fine for 5-10 min then trip goes by itself or if I add any hot plates or grill it goes straight away, but these run fine by themselves.
The cooker needs replacement elements!
Is it second hand?
If you have warranty get it replaced if new/repaired if second hand.
The circuit is fine!
Is it second hand?
If you have warranty get it replaced if new/repaired if second hand.
The circuit is fine!
I agree, the circuit is just fine and changing the RCD for a 100mA is
1. not a way to fix the fault
2. contravenes the wiring regulations 2008 + numerous amendments.
Suggest you run each of the elements separately for a half hour each. That should drive out any residual moisture. Then try again, taking note of what combination trips the RCD.
Then you'll need an electrician with an insulation resistance tester to diagnose which of the element(s) need replacing.
As above, this isn't a brand new cooker is it?, just new to you...
1. not a way to fix the fault
2. contravenes the wiring regulations 2008 + numerous amendments.
Suggest you run each of the elements separately for a half hour each. That should drive out any residual moisture. Then try again, taking note of what combination trips the RCD.
Then you'll need an electrician with an insulation resistance tester to diagnose which of the element(s) need replacing.
As above, this isn't a brand new cooker is it?, just new to you...
Thanks everyone for helping out, I will get electrician to check it out properly, and once again thanks for all you time in replying.
I think that neither you nor an electrician may change that 30mA RCD for a 100mA one.
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