Fresh-brew chamber weak
Worn paddle, tired chamber seals, or a coarse-drifted grind. Each gets checked, worn parts replaced, the dose recalibrated, and the brew verified at full strength.

Small office, full pot
Zia owners usually call us after the third weak pot of the morning, once the descale light has been on for a month and the whipper side has started to leak. We repair these bestselling compacts constantly: chamber seals, impellers, level sensors, scale. Small parts, short visits, and a straight answer on how much life the machine has left.
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A Grajqevci technician will get back to you today to confirm your machine and book the visit. If it's urgent, call us directly at (289) 217-3796.
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de Jong DUKE · Compact office coffee machine
The Zia is de Jong DUKE's bestselling compact, sized for offices pouring up to 100 cups a day. It runs the same fresh-brew chamber and agitator as its bigger siblings, scaled into a chassis that fits a kitchenette counter, with an instant canister and whipper bowl for the chocolate and cappuccino crowd. ConnectMe telemetry comes standard. Service-wise it's honest: the whipper wears first, the chamber wants seals every few years, and very little else complains.
Why Grajqevci
Call in the morning and a technician is usually on-site before the day is out. Most de Jong DUKE Zia jobs get diagnosed and fixed on the first visit.
Commercial coffee equipment is all we do, and de Jong DUKE Zia is one of the platforms we know best. 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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Zia faults we diagnose
A Zia tends to fail in predictable spots. Here's what actually goes wrong, what causes it, and how we put it right.
Worn paddle, tired chamber seals, or a coarse-drifted grind. Each gets checked, worn parts replaced, the dose recalibrated, and the brew verified at full strength.
The filter screen has torn or the chamber seal is failing. We open the chamber, replace both as needed, and test until the cup runs clean.
Grind buildup on the drive or a sensor fault. We clean the chamber drive, replace worn components, and confirm smooth cycling before closing up.
Scale insulating the element. We descale, test resistance, and replace the element if heat-up time doesn't recover.
Scale again, overheating the element locally. We descale, reset the cutout, and test that it holds.
An O-ring or hose has let go. We pressure-test the circuit, find the point, and replace the part.
An incomplete cycle or an unreset counter. We run it properly, reset, and check the hardness setting against your water.
Impeller wear or scale at the inlet. The bowl gets cleaned, the impeller replaced, the inlet cleared, and the drinks tested across the menu.
The shaft seal has worn through. We fit a new one and run the whipper until we're sure it stays dry.
The burrs are wearing. Dose is weighed, the grinder recalibrated, and burrs replaced once the numbers show they're past spec.
A stone in the hopper, usually. We clear it, check the burrs for chips, and replace them if the damage is real.
Powder dust or a failing sensor. We clean it, verify the connector, and replace the sensor if detection stays intermittent.
We pull the error log, identify the failing sensor or relay, replace it, clear the log, and test the menu end to end.
Usually network settings, sometimes the module. We verify the connection, reset the stack, and swap the module if it's hardware.
A blockage or sensor fault somewhere in the cycle. We find the stalled stage and clear it for good.
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 August 2026
It's rated for up to 100 cups a day, which covers most small and mid-size teams comfortably. The pattern matters more than the number: 100 cups spread across a day suit it better than a hundred-person rush at 9 a.m. If your headcount has outgrown it, faults start arriving faster, and that's usually the signal.
It's rarely sudden; it just crossed the threshold where people mention it. A worn agitator paddle, tired chamber seals, or grind drifted coarse are the causes, and all three build slowly. We check each, replace the worn parts, recalibrate the dose, and the strength comes back.
Most likely the filter screen inside the brew chamber, with a failing chamber seal as the runner-up. The screen is a cheap part and the swap is quick. We replace the seals at the same time and run repeat test brews until the cup is consistently clean.
The motor-shaft seal beneath the bowl wears through with daily use, and once it weeps it only gets worse. We strip the whipper, fit a new shaft seal, and check the motor bushing for play while it's apart. After that it should run completely dry.
Either the cycle isn't running end-to-end, the counter isn't being reset afterwards, or the machine's water-hardness setting doesn't match your actual supply. Any of the three makes the alert nag on a schedule that has nothing to do with real scale. We sort all of it in one visit and confirm the descale genuinely worked.
Usually, yes. Powder dust coats the sensor, the connector works loose, or the canister isn't seated all the way home after a refill. A clean and a firm refit solve most cases on the spot, and a sensor that keeps misreading gets replaced.
No. The cutout trips because scale is making the element overheat locally, and resetting it without removing the cause slowly cooks the element. We descale, test the element, and reset the cutout once the machine is actually safe to heat. If the element has already degraded, we replace it.
For nearly every fault on this machine, repair wins easily: seals, impellers, sensors, and screens are all small parts against the price of a new commercial unit. The math only gets debatable when an older Zia needs several major components at once. If yours is there, we'll say so before you spend anything.
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. 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.
Booked in minutes, usually fixed in one visit.
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