If you have already pressed the reset button on the side of the control panel and the alarm does not disappear, then the presence of this error may indicate that a component may be faulty, here are the steps to find out:
1.- Give to the emergency button a tap and see if the alarm disappears, if the alarm disappears this means that the button is no longer making good contact with the connector, so it will be necessary to replace the emergency button.
You can order it at the following link: Emergency button (control panel) – Giesen Coffee Roasters
2.- Check if there are any loose wires in the emergency stop connection, if there are any loose wires reconnect them. To access these, you need to remove the four screws located on the aluminum plate where the emergency stop is placed.
3.- Check the voltage on the emergency button contacts marked with the code 300S2, this are situated beneath the aluminum plate where the emergency button is placed. We recommend referring to the wiring diagram specific to your machine model to identify the voltage associated with each code. For this you will need a voltage meter.
If the contacts are defective, they will need to be replaced.
You can order it at the following link: Contact element clamp Siemens – Giesen Coffee Roasters
4.- Check if the component inside the control panel marked with the code 300K1 is EATON or SIEMENS, if it is SIEMENS then press the blue reset button on the top of the component for a few seconds and see if the alarm disappears, if is an EATON make sure that the black blocs are properly connected, you can push them with your hand in the direction marked with the arrow.
To ensure proper functionality, it is advisable to measure the voltage at this component (EATON/SIEMENS). For this you will need a voltage meter.
If it does not mark the correct voltage then it will be necessary to replace the relay 300K1.
You can order it at the following link:
Siemens safety relay – Giesen Coffee Roasters
To order an Eaton relay please write to us to: shop@giesen.store
If the alarm persists after doing the above then proceed to check the following:
5.- Review if the block inside the relay 300K5 and 300K6 moves when the reset button is pressed. We would greatly appreciate it if you could send us a video related to this matter.
6.- Check if there are any loose wires on the conection of the reset button, if there are any loose wires reconnect them. Also make sure that the reset button connector is in good condition.
All of the above must be carefully checked in the machine control panel.
It is advisable that this check be conducted by a qualified electrician.
If you require wiring diagram for your machine, please reach out to us and provide a picture of the interior of the control panel along with the machine's serial number.