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MS-1DA4825-MINI Catalog

 

• What does a solid state relay do on a coffee machine ?
  In coffee machines, SSRs are used for water heating control and motor control of grinders and pumps. In Hot-drinks vending machines, SSRs are used to control the heating elements

• What are the typical signs of an SSR needs to be replaced in a coffee machine espresso machine ?
  If the machine does not heat or operate at all, and the heating element problem has been ruled out, then the right place to look into would be the SSR solid state relay

Replacing the SSR

If your coffee espresso machine is not heating, it may be necessary to replace your solid-state relay.

What you'll need:

- 2.5mm hex screwdriver
- 3mm hex screwdriver
- Replacement SSR

To begin please ensure your machine is switched off, fully cooled, and unplugged. Next, remove the panels

With the panels removed, you can find the relay on the right-hand side of the machine, just on top of the computer (circled in red).

Now that we've located the SSR, you'll need to unscrew it from the bracket using a 2.5mm hex screwdriver. It may be helpful to unplug your heating element temporarily to gain better access.

Once removed, take note of where each wire is plugged into and transfer the wires one at a time onto the new SSR. If you forget, you can always examine the above images for the correct orientation of the electrical connections.

Screw the new SSR into place (and your element if you unplugged it) and plug your machine back in to begin testing. Be sure to fully test the machine's heating function before replacing the panels.

Once you've confirmed the the red LED on the SSR has lit up and heat is back on in your machine, replace the panels and enjoy your coffee!