Pasquini Livia 90 faulty relay

Equipment doesn't work? Troubleshooting? If you're handy, members can help.
Mojoj
Posts: 1
Joined: 1 year ago

#1: Post by Mojoj »

I ordered a new relay but have not received it. I can see it clicking and will not stay closed. Is it faulty or could something else be causing it to click. Water level is ok. Thanks

ira
Team HB
Posts: 5528
Joined: 16 years ago

#2: Post by ira »

If when the relay clicks, it then opens and clicks again repeating that forever, it's likely a bad power supply in the controller. If I was guessing, I'd say the replace the diode bridge and electrolytic capacitor, but that's just a guess.

austinado16
Posts: 387
Joined: 1 year ago

#3: Post by austinado16 »

Hi. I'm in the middle of repairing a Livia 90S also, and have posted a thread detailing the repairs, which were electrical: Pasquini Livia 90S with dead control module

I'll post the wiring diagram below. I added the red and blue arrows, in order to help me understand the current flow, and diagnose my machine.

You could certainly have a failed power supply relay, and hopefully your new relay will fix the issue. If not, you probably have a failing controller (the large black box). My controller was bad, and my entire machine was dead, as a result (I purchased it that way). I contacted Pat at Boyt_Enterprises, sent the controller to him last week, and received it back today, repaired, for $133 shipped.

You might want to take a look at your ground wires that are throughout the machine, and make sure they all test well, using an ohm meter. The other thing I would test and inspect, is the condition of the 2 water level probes in the boiler. The controller is looking for "input" from 4 sources, in order for it to send power out to the machine. So it wants a signal from the water tank, from the low level sensor in the boiler, from the high level sensor in the boiler, and from frame ground. Those 4 signals complete a type of "if then" logic circuit, and then the controller "allows" power to be sent out to the machine.