Our next object is an Illy coffee machine – the owner tells us that the Differential Fuse trips down when switching the machine on. This is a typical failure with coffee machines and any other apparatus containing a heating element.
Diagnosis and Root Cause
Possibly one of the elements inside is worn out and creates a leak towards earthing
- Opening of the tool to examine the elements
- Pictures are taken from the interior and connections of the different elements:
The heating element has a resistance of 52 Ohm, and a resistance to earth of 6 KOhm,
which seems to be the responsible to cause the problem ( larger than 10 KOhm).
A new one was ordered and installed and the machine started to work again.
The resistance to earth after was around 200 KOhm
- Identify the problematic element
- A new heating element
Angel is als hersteller actief bij Maakbar en Maakbaar Repair Cafés en vooral geïnteresseerd in kleine elektronische apparaten. Hij is zonder twijfel een van de meest actieve vrijwillige herstellers in Leuven.
Fotograaf: Joey Heirman