Flagship espresso, kept dialled
Polaris Pro frozen mid-rush with the side lights dark and a queue building? We know this flagship with the panels off: PID offsets that drift between groups, a flow meter gumming the EVD doses, a group that will not seal, steam gone weak. Give us the symptom when you book and the right parts ride along for the repair.
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Wega · Premium traditional espresso
The Polaris Pro is Wega's restyled flagship, a multi-boiler machine with PID control on every group. Twin steam wands, EVD volumetric dosing, and that aerodynamic body with side RGB lighting make it the one design-led cafes and high-volume bars reach for. On the bench it is a known quantity: most calls are group wear, a drifting PID offset, or a flow meter that needs cleaning, rather than anything exotic.
Why Grajqevci
Call in the morning and a technician is usually on-site before the day is out. Most Wega Polaris Pro jobs get diagnosed and fixed on the first visit.
Commercial coffee equipment is all we do, and Wega Polaris Pro 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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Polaris Pro faults we diagnose
These are the Polaris Pro faults we meet on real service calls, from per-group PID drift to flow-meter dose problems, each with its cause and the fix.
Group gaskets on a hard-working Polaris give 12 to 18 months, so a leak under pressure is just the clock running out. We pull the group, renew the gasket and dispersion screen together, clean the threads, and pull a few shots to confirm a clean seal.
Uneven flow through the screen comes from coffee oil and fines baking onto its face. We fit a new screen, backflush the group with detergent, and check that water spreads evenly before reassembling.
Falling short of 9 bar means a worn rotary pump, a drifted expansion valve, or a clogged inlet screen. We gauge it with a blind portafilter to isolate the cause, set the OPV against a calibrated gauge, and quote a pump if its output has dropped below spec.
Hammering on each cycle is air trapped in the inlet, low supply pressure to the machine, or a worn rotary vane. We bleed the line, confirm inlet pressure meets spec, and open the pump head; a worn rotary gets quoted for replacement.
The Polaris holds a separate PID offset for each group, and those wander as the sensor ages or after an undocumented poke at the service menu. We read brew temperature group by group with a Scace device, dial each offset back to spec, and confirm it stays put across 10 straight shots per group.
Low steam-boiler pressure is usually scale insulating the element or a pressurestat that has drifted. We descale the boiler, check element resistance and current draw, hold the pressurestat against a calibrated gauge, and replace whichever reads off.
When a single group runs hot while the rest behave, the fault lives in that group: its NTC sensor, its heat exchanger, or its PID calibration. We compare the sensor against a reference probe, confirm the heater circuit is sound, and recalibrate the PID. If the sensor is the problem, swapping it is straightforward.
Water under the machine is a brew-group seal, a cracked internal line, or the drain backing up. We pressure-test each circuit, clear the drain, and trace the leak to where it starts. Seals go in on the spot.
An overflowing tray at peak is a drain hose packed with grounds or kinked behind the machine. We clear the line, check the slope it drains on, and re-route the plumbing if the install geometry is working against gravity.
A wand dripping with the valve shut is a worn steam-valve cartridge or scale sitting on the seat. We rebuild the valve with a fresh cartridge and seals, descale the wand internals if scale is in play, and cycle it to confirm it closes dry.
Weak or spitting steam traces to a boiler that will not hold pressure, scale narrowing the steam path, or blocked jets in the tip. We descale, confirm pressure under load, clear the jets, and swap any tip that has eroded.
Doses that overshoot or fall short are nearly typically mineral buildup on the flow meter. We pull the meter, clean the impeller, confirm a clean pulse to the controller, and reset the dose targets against a calibrated shot glass.
Dark or flickering side lighting is usually a failed LED driver, a loose ribbon, or one dead segment dragging the whole chain. We check the driver output, reseat the connectors, and replace the strip if individual segments have gone.
A dead keypad on one group is typically a cracked solder joint on its board or a failed ribbon. We open the interface, test continuity through it, and replace the keypad assembly if the membrane itself has failed.
A boiler running low means the fill solenoid coil has failed, the valve seat is scaled shut, or the level probe is scaled over and falsely reading full. We test the solenoid electrically, descale the valve, clean or replace the probe, and watch the auto-fill cycle run end to end.
A cold cup warmer is a failed element or a thermal fuse that blew after the plate ran dry. We measure element resistance, replace it if it is out of spec, and check the thermal cutoff if it has tripped.
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
Receipts
Prompt, reliable, and professional. That's how I'd describe their servicing.
*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
Each group carries its own PID offset, and those wander as the NTC sensor ages or after an undocumented change in the service menu. We read brew water at each group with a Scace device, reset every offset to spec, and confirm it holds across ten straight shots. Left alone it shows up as one group pulling hot or sour while the others are fine.
Err 02 is a brew-group NTC reading out of range, so the controller locks out just that group and leaves the rest live. It is usually a failed or drifted sensor, or moisture in the connector after a brew-circuit leak. We test the probe at the controller, replace it, and re-baseline the PID offset with a Scace before handing it back.
Not mechanically, no. A dark or flickering panel is almost always a failed LED driver, a loose ribbon, or one dead segment dragging the chain. We test the driver output, reseat the connectors, and replace the strip if individual segments have gone. The machine pours fine in the meantime.
Mineral buildup on the flow meter, nearly every time. As scale coats the impeller the count drifts and the volumetric shots run long. We pull the meter, clean the impeller, confirm a clean pulse to the controller, and reprogram the doses against a calibrated shot glass. On normal volume that holds six to twelve months.
It is rated up to about 400 shots a day, and the multi-boiler layout with per-group PID is what lets it hold shot quality at that volume. If you are consistently past that, the wear parts simply arrive faster, and that is worth a conversation about service intervals rather than a bigger machine.
It runs with an external grinder, typically the Wega 6.4A or 8.4A or a third-party commercial unit, rather than building one in. We will check burrs, dose, and calibration alongside the machine, but the grinder is serviced as its own item.
That points squarely at that group: its NTC sensor, its heat exchanger, or its PID calibration. We compare the sensor against a reference probe, confirm the heater circuit, and recalibrate the offset. A sensor swap is straightforward if that is the culprit.
Almost always worth repairing. A Polaris Pro is a serious capital machine, and the things that fail on it, gaskets, sensors, a flow meter, even a full group service, cost a fraction of replacing it. We give you the repair number and an honest read on the machine's remaining life so you can decide.
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 brings a technician who knows this flagship inside out.
Call (289) 217-3796 now →