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ECM Synchronika: Expansion Valve Replacement (post-2021 machines)
Late model ECM Synchronika (and Pro 700) machines use a non-adjustable/non-serviceable expansion valve. This article demonstrates how to replace that valve when it reaches the end of its service life.
Tools Needed:- 10mm crescent wrench
- 14mm crescent wrench
- PTFE tape
- Replacement expansion valve
NOTE: The machine must be unplugged and cool to the touch before beginning.
1. Start be removing the panels from the machine.
2. Identify the expansion valve in the machine.
![ECM_Synchronika_ns_expansion_valve_01](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_01.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_01.jpg)
![ECM_Synchronika_ns_expansion_valve_02](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_02.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_02.jpg)
3. Remove the flexible silicone drain tube from the expansion valve.
![ECM_Synchronika_ns_expansion_valve_03](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_03.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_03.jpg)
4. Use the 10mm wrench to hold the boiler plumbing steady.
![ECM_Synchronika_ns_expansion_valve_04](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_04.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_04.jpg)
![ECM_Synchronika_ns_expansion_valve_05](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_05.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_05.jpg)
5. Use the 14mm wrench to unscrew the old expansion valve. Hold the boiler plumbing steady.
![ECM_Synchronika_ns_expansion_valve_06](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_06.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_06.jpg)
6. Remove the old expansion valve. Remember to clean off any debris or old thread sealant from the T-fitting.
![ECM_Synchronika_ns_expansion_valve_07](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_07.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_07.jpg)
7. Seal the new expansion valve threads with a few wraps of PTFE tape.
![ECM_Synchronika_ns_expansion_valve_08](https://support.clivecoffee.com/hs-fs/hubfs/ECM_Synchronika_ns_expansion_valve_08.jpg?width=688&height=688&name=ECM_Synchronika_ns_expansion_valve_08.jpg)
8. Follow these instructions in reverse to install the new expansion valve.