Short answer: Most vending breakdowns come from three things: dirt, heat and coins. A short routine prevents them — wipe and check at every refill visit, clean the payment system and coffee parts weekly, and clean the cooling unit and test every selection monthly. Book a technician service once or twice a year, and sooner for a used machine you have just bought.
- Ten minutes at each refill visit prevents most service calls.
- In the UAE, dust on the cooling unit and hard water in coffee machines are the two silent killers.
- Always switch off and unplug before cleaning inside the machine.
At every refill visit (10 minutes)
- Test a sale with a coin, a note and a card before you leave.
- Wipe the outside: glass, keypad or touchscreen, delivery flap and payment slots — the parts customers touch.
- Check dates and rotate stock: oldest items to the front.
- Empty the cash box and top up the change tubes.
- Look and listen: error messages on the display, unusual noise from the compressor, water under the machine.
- Coffee machines: empty the waste tray and grounds container, refill ingredients and run the rinse cycle.
Weekly
- Clean the coin path and note reader with a dry, lint-free cloth. Sticky coins and dusty sensors cause most “money not accepted” complaints.
- Coffee machines: remove and wash the mixing bowls, whipper parts, nozzles and drip tray in warm water; wipe the ingredient canister outlets so powder does not clog.
- Check the door seal and lock. A door that does not close properly lets warm air in and makes the cooling unit work harder.
- Review sales and replace products that have not moved.
Prefer not to do it yourself? Our maintenance contracts cover preventive visits, priority call-outs and parts for most vending brands.
Monthly
- Clean the condenser coil and air filter of refrigerated machines with a soft brush or vacuum. In dusty UAE conditions this is the single most important job — a blocked coil overheats the compressor.
- Keep the ventilation gap behind and around the machine clear, as stated in its manual.
- Test every selection and check that spirals or trays are aligned and products do not catch.
- Check the temperature of chilled machines with a thermometer.
- Coffee machines: clean the brewer according to the manual and check the water filter. Descale when the machine or your water hardness calls for it.
- Check prices and payment settings after any product change.
The schedule at a glance
| Task | Every visit | Weekly | Monthly | Technician |
|---|---|---|---|---|
| Test sale, wipe touch points, check dates | ✓ | |||
| Rinse coffee system, empty waste | ✓ | |||
| Clean coin path and note reader | ✓ | |||
| Wash coffee mixing parts | ✓ | |||
| Clean condenser coil and filter | ✓ | |||
| Test all selections and temperature | ✓ | |||
| Full service: brewer, valves, seals, electrics, software | 1–2 × a year |
Just bought a used machine? The first 30 days
A used machine can run for years if it starts clean. In the first month:
- Deep-clean the cabinet, trays and delivery area before loading stock.
- Have the cooling unit, door seals and — on coffee machines — the brewer, valves and water circuit inspected.
- Check that the coin mechanism and note reader accept the current UAE coins and notes, and ask about a cashless reader if the machine has none.
- Note the model and serial number and ask where spare parts will come from.
- Watch the first two weeks of sales and error messages closely.
Machines sold as DV Certified are inspected and graded before sale; for any other used machine, ask for a workshop inspection. Our guide to used vs new machines covers what to check before you pay.
When to call a technician
- The machine is not cooling, or the compressor runs without stopping
- Water leaks from a coffee machine or from under the cabinet
- The same error message returns after a restart
- The payment system rejects good coins, notes or cards after cleaning
- You smell burning or see damaged cables — switch off and unplug first
Send the model, a photo of the error and a short video on WhatsApp so the technician arrives with the right parts. See common vending machine faults for quick checks you can do first.
