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Lelit Mara X: Replacing the Safety Valve

Imported from HubSpot KB export -- 2026-08-14

Z
Written by Zac P

Tools Needed:
- 20mm crescent wrench
OR
- 20mm deep socket and socket wrench
- PTFE tape (aka Teflon tape aka plumber's tape)
- Replacement safety valve

NOTE: The machine should be unplugged and cool to the touch before you begin.

1. Start by removing the top panel from the machine.

2. Identify the safety valve.

IMG_8128


3. Remove the silicone drain tube from the top of the safety valve.

IMG_8129



4. Using the crescent wrench or socket wrench, unscrew the safety valve from the top of the boiler.

IMG_8131


IMG_8136-1



5. Clean any debris from the original thread sealant off of the boiler, make sure that the sealing o-ring is clean and in good condition.

IMG_8133



6. Transfer the sealing o-ring to the new safety valve if one was not included with the new valve.

IMG_8134-1



7. Screw the new safety valve into the top of the boiler.

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