Hey Bill, Looking at the wiring diagram there’s some good news! This one should be pretty simple. Do you have access to a multimeter, and do you know how to use one/feel comfortable that you could safely disconnect the unit from power?
The pump motor can recieve power from two sources. In order for the pump to continually run one of three things are likely happening. 1) the Brew switch activated by the lever is erroneously supplying power to the pump. This could be a mechanical failure, like the roller that pushes in is stuck, and is keeping the switch engaged, check that it isn’t binding and you can hear an audible click coming from the switch as the roller gets pushed in. L ess likely the switch has failed internally and needs to be replaced. This can be checked by looking for continuity across the switch with the lever down. It should be open, if not replace the switch. 2) The level sensor is bad or dirty, and the level controller is trying to fill the steam boiler. This can be checked pretty easily, if you turn the machine on with the steam switch on And the steam heating light does not light, than this is likely the cause. This will eventually cause the steam boiler to overflow from the vacuum relief valve. Clean/replace level sensor/check the wire going from the level sensor to the controller, and the wire going from the boiler body ground to the controller. 3) One of the level controller relays has failed. Most likely in this instance just the pump will run, it is very unlikely that the steam boiler solenoid will open, and the steam boiler will likely try to heat but not necessarily. This can be checked by checking the level controller relay connection between the common (where power enters the controller) and the prong that connects to the motor. With the machine off there should be no continuity. If there is then replace the controller. Alternatively these relays can be repaired. It’s a bit of a specialty thing, and requires practice soldering. I know there’s a few guys on here who mentioned doing it and they may be able to help with that/more info on how to do it. Best of luck! On Friday, April 23, 2021 at 4:53:09 PM UTC-4 billherbst wrote: > Hi folks. Last year I upgraded from a trusty 12-year-old Brewtus II to a > Brewtus IV-R I'd had unopened for four years. A friend plumbed it in and > hard-wired it for me. That was all great — not having to fill the reservoir > and enjoying the quiet of a rotary pump. But I wondered how long it would > be before something broke. Since it's plumbed-in and wired to the counter, > I worried that I wouldn't even be able to move it. > > Well, tonight my fears manifested. I pulled a shot, the third of the day. > Everything was normal until I ended the pour and lowered the lever. The > water shut off, but the pump kept running. Freaked me out. I turned the > lever on and off. The pump kept running. Turned the machine off, let it sit > for a minute, then turned it back on. The pump started up again as soon as > the machine was turned on. > > Now what? > -- You received this message because you are subscribed to the Google Groups "Brewtus" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/brewtus/c9e0db4d-0c73-4c47-93e5-108d15366f78n%40googlegroups.com.
