Machine does not switch from reservoir mode to plumbed-in mode (or vice versa) correctly.

Safety first: Turn off and unplug the machine before accessing the base or internal switches.

• Locate source selector: Many Rocket models have an internal switch or jumper to select tank or mains. Verify it is set to the desired mode per the manual.
• Check mains line: For plumbed-in use, ensure the shutoff valve is open and the line is flushed of debris and air before connecting.
• Inspect inlet filter: Clean or replace any inline filters or softeners that may be restricting flow.
• Test in tank mode: Switch back to reservoir mode to confirm the machine works correctly there. If only one mode fails, focus on that inlet path and its switch.