Skip to main content
Rocky Mountain Vending

No power or dead display

Other M159.0 Voce Setting

Machine type unverifiedLow confidenceExact parts not verified
Back to all issues

No power or dead display

This flow guides you through initial checks to narrow down the source of operational issues.

Low VoltageTechnician8-12 min
Power7 stepstechnician-advanced

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.

  • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
  • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

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 all external connections for obvious damage or disco...

    technician-advancedmedium

    Visually inspect all external connections for obvious damage or disconnections.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Initial condition is documented before deeper diagnosis.

    Evidence to note: note

  2. 2

    Confirm that the unit is powered on and displaying any error messages.

    technician-advancedmedium

    Confirm that the unit is powered on and displaying any error messages.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Initial condition is documented before deeper diagnosis.

    Evidence to note: note

  3. 3

    Perform the initial visual inspection as described in the public-safe...

    technician-advancedmedium

    Perform the initial visual inspection as described in the public-safe guidance.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  4. 4

    Follow the diagnostic prompts sequentially, noting any changes in beh...

    technician-advancedmedium

    Follow the diagnostic prompts sequentially, noting any changes in behavior.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  5. 5

    If the issue persists, proceed to the next diagnostic step using publ...

    technician-advancedmedium

    If the issue persists, proceed to the next diagnostic step using public-safe guidance.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  6. 6

    Document all observations before proceeding to the next section.

    technician-advancedmedium

    Document all observations before proceeding to the next section.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

  7. 7

    If the issue remains unresolved, stop and document the machine state...

    technician-advancedmedium

    If the issue remains unresolved, stop and document the machine state for expert review.

    Stop conditions
    • For any steps involving the main power source or internal circuitry, contact a qualified technician immediately.
    • If troubleshooting requires accessing internal electrical components, only a qualified technician should proceed.

    Expected: Result is documented before continuing the route.

    Evidence to note: note

Tools for this route

Non-Contact Voltage Tester

Parts status

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

Candidate areas for part verification

Power componentsPayment componentsController and wiring componentsCooling componentsDisplay and keypad parts

Other Possible Issues

Switch routes if this symptom is not the closest match.

All issues
PaymentsPayment or money acceptance problem ReviewPowerNo power or dead display ReviewControllerController or electronics problemCoolingCooling or refrigeration problemDisplay / keypadDisplay, keypad, or selection problem