"Stuck" diaphragm booster pump?

[ADK_XJ]

Hi all, I've had the same small Shurflo pump driving my 4 membrane RO for 7+ years - as I was prepping the system for use this season with some 3% peroxide, it cut out at some point and won't power back on.

Any suggestions on troubleshooting these things or should I just get a new one after this long?

I thought it might have been the solenoid sensor as the wires going in were looking a bit crispy but it still won't power on after I clipped that out. Maybe the transformer?

[carls47807]

Hook it to a 12v battery and see if it click over

[johnallin]

Possibly the diaphragm is sugared up and stuck. Can you break it down and clean or check the diaphragm.
If not, I’d say 7 years is not bad service and just get a new one.

[ADK_XJ]

I'll have to undo the clips but good idea.

[ADK_XJ]

Possibly the diaphragm is sugared up and stuck. Can you break it down and clean or check the diaphragm.
If not, I’d say 7 years is not bad service and just get a new one.

Yeah, that's kind of what I told myself haha.