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Rocky Mountain Vending

Machine Completely Dead — Diagnostic Flow

Polyvend PV 1500 Super Seller

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Machine Completely Dead — Diagnostic Flow

This diagnostic flow systematically checks the entire power path, from the main electrical source all the way to the machine's internal low-voltage components, to pinpoint why the unit has no visible power.

High VoltageOperator8-12 min
Power6 stepsoperator-intermediate

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.

  • New fuse blows immediately upon power-up: Stop — do not install a third fuse. Escalate to advanced technician. Likely short circuit in wiring or component.
  • Burning smell detected at any point: Unplug immediately. Do not apply power again until fault is identified and resolved.
  • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
  • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

Checklist

Guided Diagnostic Steps

Work from low-risk checks toward technician-level inspection only when evidence supports it.

Printable checklist

You can read or print the route now. The first checkbox click opens the service contact gate.

lead gated
  1. 1

    Visually inspect the power cord for any obvious damage or tears.

    operator-intermediatehigh

    Visually inspect the power cord for any obvious damage or tears.

    Stop conditions
    • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
    • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

    Expected: Initial condition is documented before deeper diagnosis.

    Evidence to note: note

  2. 2

    Confirm the main circuit breaker supplying the unit is in the 'On' po...

    operator-intermediatehigh

    Confirm the main circuit breaker supplying the unit is in the 'On' position.

    Stop conditions
    • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
    • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

    Expected: Initial condition is documented before deeper diagnosis.

    Evidence to note: note

  3. 3

    Check the main power input connection point.

    operator-intermediatehigh

    Check the main power input connection point.

    Stop conditions
    • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
    • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  4. 4

    Test the integrity of the primary power cord connection.

    operator-intermediatehigh

    Test the integrity of the primary power cord connection.

    Stop conditions
    • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
    • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  5. 5

    Inspect the fuse holder for any signs of damage or blown elements.

    operator-intermediatehigh

    Inspect the fuse holder for any signs of damage or blown elements.

    Stop conditions
    • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
    • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  6. 6

    For any checks involving line-voltage or internal wiring, consult a q...

    operator-intermediatehigh

    For any checks involving line-voltage or internal wiring, consult a qualified technician.

    Stop conditions
    • If the issue persists after initial checks, you must escalate this to a qualified technician because this diagnostic involves high-voltage components and potential short circuits.
    • If you suspect a wiring fault or fuse issue, only a qualified technician should proceed with testing the main power input.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

Tools for this route

No special tools listed

Parts status

Exact public parts list not verified yet. Use this route to identify the system before ordering.

Candidate areas for part verification

Power componentsVend path componentsDelivery sensor componentsDoor and lock hardwarePayment components

Other Possible Issues

Switch routes if this symptom is not the closest match.

All issues
Vend pathProduct Not Dispensing — Diagnostic FlowDelivery sensorDelivery sensor or bin problemDoor / lockDoor, latch, or lock problemPaymentsPayment or money acceptance problem