Hello:
I have a Millemnium portable RO that will not come on. I have switched the power cord, the Slow flow fuses (1/4amp and 8amp), checked the outlet for power. the only light that comes on is the low pressure light. The power switch appear to be working as well as the Inlet valve switch. I am getting water to the drain once and only when I pushed the Disinfect switch in. Please help.

Check your incoming water pressure and then your pump.

We had this problem once and it turned out to be the solenoid on the inlet valve was bad.

Some other possibilities are:

1. Actual low feed water pressure.
2. Bad low pressure sensor.
3. Bad inlet valve (not solenoid).

Chuck

Or your wall outlet isn't working correctly...

If this is the new style with the inlet pressure sensor, its probably the sensor . I had one that wouldn't turn on , so I disconnected the sensor and it worked fine, also they have a built in time delay, but its only 15 seconds or so. It won't turn on right when you flip the switch. I'm sure you reset the gfci on the power cord.

Mar Cor Tech Support 800-633-3080

check the pump head ( may be locked up) and your motor (may be locked up also).

I had the same problem turn out to be low pressure cause by the carbon tank, do a manual back wash and run it again to see any changes, if it works rebbed your carbon tank