What is error 5 on my impressa J9 - Impressa Jura Capresso Coffee Makers & Espresso Machines

If your machine is not displaying the descale or decalcify option, you can try forcing it into descaling mode. To do this, press and hold the rotary switch until "RINSE" is displayed. Briefly press the rotary switch again until "RINSE" lights up. Turn the rotary switch until "DECALCIFY" is displayed. Product Support - JURA

Here is the replacement tray

Jura J9.2-J9.3-J9.4-J90-J95 Drip Tray - Espresso-parts.com

https://www.espresso-parts.com > Jura-J9-2-J9-3-J9-4-J...

The J9.2-J9.3-J9.4-J90-J95 Drip Tray catches excess water/coffee while the machine is operating. When the Drip Tray fills to its max capacity, ...
US$89.97 · ‎In stock

https://www.caffe-select.co.uk/pages/jura-user-guides-manuals

https://www.youtube.com/watch?v=PE-PN3tdSAI
Instruction manual
https://www.eirvik.is/media/4260/impressa-j93-one-touch-tft.pdf

have you checked pipes for a blocked filter?

Plain old vinegar.

If the machine says TRAY MISSING it's the contacts at the back so clean as other people have stated, you can also use a cardboard nail file to clean the contacts at the back if there really dirty!.

If the machine keeps saying EMPTY GROUNDS even though you have, pull out the tray, look just inside the aparture where the tray goes top right at the front there is a small slot where if you look closely you can see a small white micro switch. This will be probably gunged up with coffee and the switch will be stuck up, get a can of WD40 and squirt a small amount up into the switch then poke the switch with a small screwdriver up and down until it moves smoothly.

Then replace all the bits, sit down, look smug and have a coffee cos you've fixed it!!

put in microwave , use hot boiling water , descale .

If you look on the circuit board that the big black heat sink is attached to, there are two output amp chips (integrated circuits) attached to it. IC7 is the sub output amp. Next to that is a white jack with two pins sticking out, labeled J9. J9 is where you plug your sub into.