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Pre-infusion solenoid failing
A failed pre-infusion solenoid. We replace it and verify the pressure curve.
The flagship, kept running
Flagship Classe 20 down with a screen full of errors, mid-rush? We repair both thermal trims, Steady Brew and ASB: a group not reaching set point, Steady Brew balance drifting, a pre-infusion solenoid that won't fire, RGB lighting flickering out, a frozen touchscreen. Tell us SB or ASB and the symptom, and we'll come with the parts and the service-menu access to clear it.
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Rancilio · Flagship traditional espresso
The Classe 20 is Rancilio's flagship, offered in two thermal trims. The Steady Brew (SB) trim refines the thermosiphon with per-group control; the Advanced Steady Brew (ASB) trim runs separate boilers with PID per group for the most demanding programs. Both add customizable RGB lighting on the panels and groupheads, a 4.3-inch touchscreen, and deeper diagnostics. On the bench the Classe 20 carries more electronics, so RGB drivers, the touchscreen, SB or ASB thermal balance, and pre-infusion solenoids join the usual scale and seal work.
Why Grajqevci
Call in the morning and a technician is usually on-site before the day is out. Most Rancilio Classe 20 jobs get diagnosed and fixed on the first visit.
Commercial coffee equipment is all we do, and Rancilio Classe 20 is part of the weekly rotation. Not a generalist guessing at a service manual. Genuine OEM parts, industry-standard procedures.
Flat rate for the visit, with parts billed separately. For bigger jobs you'll see a written quote on-site before we proceed.
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Classe 20 faults we diagnose
These are the Classe 20 faults we see most, from SB and ASB thermal drift to RGB and touchscreen faults, each with its cause and the fix.
A failed pre-infusion solenoid. We replace it and verify the pressure curve.
A worn group gasket. We back-flush, fit a fresh gasket, and check lock-up.
A clogged dispersion screen. We soak it in cafiza and replace it if it's dimpled.
Pump wear. We measure brew pressure, set the OPV to 9 bar, and replace the pump if it's below spec.
A clogged gicleur on one group. We pull it and clean it ultrasonically.
Scale shifting the heat distribution. We descale, test the elements, and recalibrate the offsets through the USB service menu.
A scaled element. We descale it, test resistance, and replace it if it's drawing low.
A failed element or controller relay. We test both and replace the faulty one.
We pressure-test the circuits, dye-trace the chassis, and replace the weeping fitting.
A scaled level probe or a fill solenoid leaking past. We clean the probe and replace the solenoid.
A tired steam valve cartridge. We rebuild it with a fresh kit.
A failed steam probe. We test it and replace it.
An LED driver or strip fault. We test the driver, replace the affected LED strip, and confirm the lighting profile through the service menu.
A firmware hang. We hard-reset, reflash, and replace the module only if it's needed.
The flow meters have mineralized. We clean each one and reprogram the doses.
We read the fault log through the USB interface and fix the root cause it points to.
Your coffee emergency ends here
Call or submit the form. We confirm your address, model, and the issue.
An experienced technician arrives, runs full diagnostics, and identifies the root cause.
You receive a flat, itemized quote. Nothing proceeds without your green light.
We complete the repair, run a test cycle, and walk you through what to watch for.
Parts on the truck
Track record
University food services across two campuses. Their preventive maintenance schedule fits our academic calendar so we stay running through exam season.
*Estimated based on the approximate distance from our nearest service centre, average commute time, and median service-call length for one machine. Prices in Canadian dollars (CAD $). Final quote provided on-site after diagnosis.
FAQ
20 answers covering service, repair, parts, installation, warranty, and edge cases.
Updated July 2026
The SB (Steady Brew) trim refines the thermosiphon with per-group control; the ASB (Advanced Steady Brew) runs separate boilers with PID per group. The ASB has more thermal circuits to calibrate, the SB is simpler. We service both and the approach follows whichever you have.
It's usually an LED driver or a strip fault rather than anything in the coffee path. We test the driver, replace the affected strip, and confirm the lighting profile through the service menu. It's a cosmetic system, so it's your call, but it's a straightforward fix.
Usually not. Most frozen screens are a firmware hang that clears with a hard reset and, where needed, a reflash. We only replace the module if it's genuinely failed, and we test which case you have before quoting.
Usually a failed heating element or a controller relay for that group. We test both and replace the faulty part, then confirm the group holds temperature. On the ASB we also check the per-group PID is calibrated.
It can be. The Classe 20 is a flagship built for demanding, high-volume specialty programs, with the electronics and price to match. If you don't need per-group thermal control and the touchscreen, a Classe 9 or 7 does the job for less. We'll tell you honestly which fits.
It carries more electronics than the rest of the range, so the service-menu access matters. We read its diagnostics, calibrate the SB or ASB thermal balance, and set the RGB and touchscreen behaviour through the menu. A generalist without that access is guessing.
A failed pre-infusion solenoid on that group. We replace it and verify the pre-infusion curve. If several groups are affected at once, we check the controller output driving them instead.
It's rated up to around 450 shots a day across its groups, in line with the high-volume end of the range. The flagship build is meant to hold quality at that volume. We keep the thermal system and seals in spec so it does.
Flat rate for the visit, parts billed at their actual cost on top. You'll hear the rate when you book, and for bigger jobs we quote in writing on-site before any work starts. No estimate that balloons mid-job.
Same-day in most cases. Call in the morning and a technician is usually on-site before the day is out; calls placed later in the day book for the next morning. Urgent breakdowns get priority routing.
The GTA and most of the Golden Horseshoe: Toronto through Mississauga, Vaughan, and Markham, out to Oshawa, Hamilton, and Niagara. If you're not sure you're in range, call and we'll tell you straight.
No. We work call by call. Plenty of customers put us on a maintenance schedule eventually, but that's their choice after seeing the work, never a requirement.
Parts carry their manufacturer warranty, and we stand behind our labour: if the same fault recurs, call us and we'll review it. Specific terms are discussed upfront on each job, not promised in marketing copy.
On-site whenever possible, which is most of the time. If a job genuinely needs the bench, like a full boiler rebuild or major electronics work, we'll say so before anything leaves your building.
Call us or send the form on this page. We confirm the machine, the fault, and a time window the same day. If it's urgent, say so and we'll route the nearest technician.
Diagnosis first: we confirm the fault, tell you what caused it, and quote the fix before touching a wrench. Most repairs finish in that same visit because the common wear parts ride on the truck.
High-wear parts for the platforms we service constantly ride on the truck. Anything else we order, usually next-day where suppliers allow, and we tell you the lead time before committing you to anything.
Usually, yes. We service legacy machines for as long as parts can be sourced, and we're honest when a repair stops making financial sense against a replacement. You get the math, you make the call.
Often, but that's not the pitch. We quote against the actual work, not a factory pricing book, and we'll tell you when a manufacturer warranty claim is the better route. Transparency is the value; the price usually follows.
Yes, and we do it by default on the way out. Half of repeat faults trace back to skipped daily cleaning or wrong routine, so the technician walks your team through what actually matters before leaving.
One call gets you a tech with service-menu access and the parts.
Call (289) 217-3796 now →