Case Study: Coffee Machine Repair on Traditional Coffee Machine.
Location: Humble Pi, Stamford Linconshire.
Reported Fault: Machine not heating up.
On arrival on site the customer informed me the machine was not heating up.
I carried out some checks with my test meter and established that there was no voltage supply to the heating element.
The voltage is supplied to the element via an electrical contactor relay which is switched by a voltage signal sent from the pressure switch.
The electrical contactor and also the pressure sensor were replaced.
The pressure sensor was then calibrated to 1Bar pressure which is the standard working pressure of a traditional machine. This cuts the voltage supply to the contactor when the correct pressure/temperature is reached.
The machine was then tested to make sure it was operating properly
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