Diagnosing Complete Power Loss
VendnetUSA 3565 / 3566 / 3567 / 3568 Serie
Diagnosing Complete Power Loss
A systematic check from the wall outlet through the internal power supplies to locate the lack of voltage.
Qualified technician handoff: stop before live electrical testing, sealed-system refrigeration work, compressor service, or protected-compartment access unless a qualified technician is handling the work.
- Unexpected line voltage on ground wire
Checklist
Guided Diagnostic Steps
Work from low-risk checks toward technician-level inspection only when evidence supports it.
You can read or print the route now. The first checkbox click opens the service contact gate.
- 1
Check Power Cord and Receptacle
operator-intermediatelowUnplug machine. Inspect the plug and cord for damage. Plug a known-good lamp into the wall receptacle to confirm facility power.
Stop conditions- Visible damage to cord
Expected: Wall receptacle provides 120V AC safely.
Evidence to note: photo
- 2
Inspect Internal Main Fuse / Breaker
operator-intermediatehighWith machine unplugged, access the main power distribution area. Locate the main fuse or breaker. Use a multimeter to check continuity if it is a fuse.
Digital MultimeterExpected: Fuse shows continuity (close to 0 ohms). Breaker is in the ON position.
Evidence to note: meter-reading
- 3
Verify Low Voltage Power Supply Output
technician-advancedlive-voltageSafely apply power. Measure the output of the low voltage power supply to the main controller board.
Qualified technician handoff: stop before live electrical testing, sealed-system refrigeration work, compressor service, or protected-compartment access unless a qualified technician is handling the work.
Digital MultimeterExpected: Steady DC voltage present (e.g., 5V, 12V, or 24V DC).
Evidence to note: meter-reading
Tools for this route
Location Help
Where to find this
Use this as orientation before touching the machine. It is location help, not a repair instruction.
Start outside the machine at the outlet and cord, then identify the power entry area before any protected-compartment inspection.
- Connection to facility power, main line filtering, and distribution to internal components.
- Power cord
- Line filter
- Main circuit breaker or fuse
Do not open energized or protected electrical areas unless a qualified technician or licensed electrician is handling the work.
cabinet glass front
power supply
terminal blockParts status
Exact public parts list not verified yet. Use this route to identify the system before ordering.
Candidate areas for part verification
Other Possible Issues
Switch routes if this symptom is not the closest match.