Hello All,

I have a 2015 Profitec 700 which is plumbed in and has upgraded PID. This morning the green power light came on as usual, but the orange light and PID are not powering up. The outlet is fine, I also checked the machine with a full water reservoir just in case, but nothing seems to bring it to life.

I have a voltmeter and would like to check the 12V power supply to see if it's working, but not sure where to test leads, and what values I should get. Any ideas would be greatly appreciated before I go on the hunt for new parts...again...

Thanks,
Eric

first of all check the PID 220/110 line (in). Then the SSR (in and out). Be careful, it's high voltage.

Green lamp is simply powered on by the power switch, so it only proves that the machine is plugged in to a live receptacle and that the switch is on. It is a pretty good indication that the powerboard is receiving power because the leads for the green lamp are all faston connectors of the same conductors (Phase and Neutral right from the switch).

The orange lamp is on one of the out-puts (FA3) from the powerboard, so your symptom is that the powerboard is almost certainly powered but isn't turning on. (The transformer that powers the PID Controller is also an output from the powerboard (FA6) so that too points to the powerboard being bad.

Does the machine make any noise at all? If not, chances are that the powerboard is kaput.

No, the machine does nothing when I turn it on- pure silence (so no coffee!). I know the power board says it's 12v out. Would you know how to use my voltmeter to check the voltage into and out of the powerboard? Should it be getting 120V in and 12 out? And which leads do I check?

Thanks again for any help!

When you say "the machine does nothing" does it heat up? does the pump work? These ecm PID are tricky. FIL connexion, steam/hot water switch.

raknyc wrote:No, the machine does nothing when I turn it on- pure silence (so no coffee!). I know the power board says it's 12v out. Would you know how to use my voltmeter to check the voltage into and out of the powerboard? Should it be getting 120V in and 12 out? And which leads do I check?

Thanks again for any help!

The Powerboard is the large black box (Probably still a part# US1004 on the sticker if it's a couple years old) with more than 10 electrical connections to it.

The thing that says 12V Out is a transformer with the single purpose of powering the PID Controller. Because there's no power to any components from the powerboard, the assumption is that there's no power to the transformer. But you can prove this to yourself by checking VAC in the 200 range between each pair of electrical connections to and from it (the skinny wires to the PID Controller will be 12-14 volts when live, but they'll have nothing because the component isn't powered by the powerboard). The blue and brown wires from the powerboard and common blue should be providing it 120VAC, but you'll see lower than 4VAC if you check it because the powerboard isn't powearing any components.

If you want, you can check for voltage between ALL connections on the powerboard and the common blue... You will get 120VAC (or close) from phase to common-blue, and nearly zero from all others because the powerboard isn't powering any components.

If you get any readings different than what I have guessed above, let us know.

Switch from Reservoir mode to direct plumbed and turn off any alarms. See if that changes anything.

ToM4 wrote:I may be wrong...

To clarify, the PID is powered by 12V supplied by the transformer. The transformer would be powered by the Powerboard (Pin FA6) if the Powerboard were functional. The Powerboard is powered by Common Blue Neutral (Pin FA1) and Phase on the same conductors as the power switch and green lamp and it is safe to assume that they're okay because the green lamp is illuminated.

The OP is talking about a Profitec Pro 700.

ToM4 wrote:I may be wrong...

As a point of reference, if you're offering repair advice and have to preface it with "I may be wrong", you may want to sit this one out. As noted in the site's Terms of Service:

Espresso equipment contains controls and conduits for electricity, very hot water, steam and high water pressure. Attempting repairs, modifications, alterations, or diagnoses of such equipment yourself could result in serious injury or death to yourself and to others and the destruction of property by fire and other causes. We accept no responsibility for any injuries or losses resulting from any attempt to perform equipment repairs, modifications, alterations, or diagnoses based on information from Home-Barista.com.

To the OP: If you're not sure about your ability to do your own repairs, get it to a qualified service technician.