Riello MULTI SENTRY MST 60

Questions and Answers

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Sharon SchmidtDec 1, 2025
What do error codes F34, F35, F36, L34, L35, L36 mean on my Riello MULTI SENTRY MST 60 UPS?
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  Jonathan JohnstonDec 1, 2025
  If the display of your Riello UPS shows one or more of the codes F34, F35, F36, L34, L35, L36, it could be due to: * Ambient temperature exceeding 40°C * Sources of heat near the UPS * Obstructed ventilation slits or slits too close to walls To resolve this, activate manual bypass (SWMB) without switching off the UPS to allow the fans to cool the dissipator more quickly. Remove the cause of over-temperature and wait for the dissipator temperature to lower before excluding manual bypass. It may also indicate a temperature sensor or UPS cooling system malfunction. In this case, insert manual bypass (SWMB) without switching off the UPS so that fans can cool the dissipator more quickly. Wait for dissipator temperature to lower. Switch off and then re-start the UPS. Exclude manual bypas...
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Emily AllenAug 25, 2025
What to do if Riello MULTI SENTRY MST 60 UPS does not go into standby mode with mains power?
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  Kelly HamiltonAug 25, 2025
  If your Riello UPS doesn't enter standby mode despite mains power, check the following: * Ensure the mains are correctly connected to the input terminals as per the installation instructions. * Verify the neutral connection is present, as the UPS requires it to operate. Failure to connect the neutral can damage the UPS or the load. * Confirm the switch behind the door (SWIN) is closed. * Check for a blackout; verify the presence of mains voltage. If there is no mains voltage, switch on via batteries to power the load. * Check for upstream protection intervention and reset the protection, ensuring there is no output overload or short to the UPS.
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Jennifer WaltersAug 25, 2025
What to do if there is no load voltage arriving from my Riello UPS?
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  Peter ParkerAug 26, 2025
  If there is no load voltage from your Riello UPS, consider these possibilities: 1. Check that the load is properly connected to the output terminals. 2. Ensure that the switch behind the door (SWOUT) is closed. 3. Verify that the UPS is not in standby mode. If it is, perform the startup sequence. 4. Confirm that the Stand-by OFF mode is not selected, as this mode only powers loads during blackouts. 5. If the UPS has malfunctioned and the automatic bypass isn't working, insert the manual bypass (SWMB) and contact the nearest service center.
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Chelsea GarnerAug 27, 2025
What does it mean when my Riello MULTI SENTRY MST 60 UPS shows codes A39, A40 and the replace batteries LED is on?
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  Cindy LevineAug 27, 2025
  If your Riello UPS displays codes A39 or A40 and the red "Replace Batteries" LED is on, it means the batteries haven't passed their periodic efficiency test. It's recommended to replace the batteries, as they may no longer provide sufficient autonomy. Battery replacement must be performed by qualified personnel.
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John MasonAug 27, 2025
What does code S07 mean on my Riello MULTI SENTRY MST 60 UPS?
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  Breanna AllenAug 27, 2025
  If your Riello UPS displays code S07, it indicates that the batteries are flat and the UPS is waiting for the battery voltage to exceed the set threshold. You can either wait for the batteries to recharge or manually force power-on via the “ON” menu.
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Annette RamirezSep 16, 2025
What do error codes L01, L10, L38, L39, L40, L41 mean on my Riello UPS?
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  younggabrielSep 16, 2025
  If your Riello UPS displays one or more of the following codes: L01, L10, L38, L39, L40, L41, it indicates a malfunction of the temperature sensor, UPS cooling system, main auxiliary power, or static bypass switch. To resolve this, activate manual bypass (SWMB), switch off and re-start the UPS. Exclude manual bypass Contact the nearest service centre if this problem persists.
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Richard WrightSep 14, 2025
What do error codes L11, L12, and L13 mean on my Riello MULTI SENTRY MST 60?
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  Becky BrownSep 14, 2025
  If your Riello UPS displays codes L11, L12, or L13, it indicates a static bypass breakage or malfunction. To address this, activate manual bypass (SWMB), switch off the UPS, wait one minute, and then re-start the UPS. Exclude manual bypass. Contact the nearest service centre if this problem persists.
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tiffany40Sep 15, 2025
What do error codes F06, F07, F08 mean on my Riello UPS?
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  Melinda HarrisSep 15, 2025
  If your Riello UPS displays one or more of the following codes: F06, F07, F08, it indicates that the input contactor is blocked. To resolve this, activate manual bypass (SWMB), switch off the UPS, open the SWIN and contact the nearest service centre (Attention: once the SWIN is open, it will no longer be possible to close it again before Service intervenes).
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Keith GibsonSep 6, 2025
Why won't my Riello MULTI SENTRY MST 60 UPS start up and shows codes A30, A32, A33, A34?
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  Scott LesterSep 6, 2025
  If your Riello UPS displays codes A30, A32, A33, A34 and won't start, it could be due to the ambient temperature being below 0°C. Heat up the room, wait for the dissipater temperature to exceed 0°C, and then start up the UPS. Alternatively, there may be a temperature sensor malfunction on the dissipator. In this case, activate manual bypass (SWMB), switch off the UPS, re-start the UPS and exclude manual bypass. Call the nearest service centre if this problem persists.
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Dennis McgeeSep 4, 2025
What do error codes F11, F14, F15, F16, F17, L06, L07, L08, L09, L14, L15, L16, L17, L18, L19, L20, L21, L22 mean on my Riello MULTI SENTRY MST 60?
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  Brian TaylorSep 4, 2025
  If your Riello UPS shows one or more of the following codes: F11, F14, F15, F16, F17, L06, L07, L08, L09, L14, L15, L16, L17, L18, L19, L20, L21, L22, it may be due to the insertion of abnormal loads. Remove the load. Insert manual bypass (SWMB), switch off and re-start the UPS. Exclude manual bypass Call the nearest service centre if this problem persists. Another possibility is a UPS input or output stage malfunction. Activate manual bypass (SWMB), switch off and re-start the UPS. Exclude manual bypass Contact the nearest service centre if this problem persists.

Summary

UPS Component Views

Control Panel Explanation

Explains the control panel layout, LEDs, and function keys.

UPS Connection Points

MST 60-80-100 Connections

MST 125 Connection Details

Installation Procedures

Installation Setup Essentials

Details the initial steps and requirements for setting up the UPS.

Optimal Installation Environment

Removing UPS from Pallet

Correct UPS Positioning

Electrical Connection Guide

Connection Cable Sizing

Provides tables for selecting appropriate cable sizes for different UPS models.

Pre-Connection Operations

Outlines essential safety checks and preparatory steps before making electrical connections.

Hookup Instructions

Provides step-by-step guidance for connecting the UPS power cables.

Electrical System Connection Diagrams

Protection Devices

Short-Circuit Protection

Explains how the UPS handles output short circuits.

Protection Against Back-Feed

Input Line Thermal Magnetic Switches

Recommends external AC protection devices for the input line.

Battery Line Protection

Specifies surge protectors and fuses for the external battery line.

Differential Protection

Addresses the use and configuration of differential switches for safety.

Output Line Fuses;Switches

Recommends output protection devices for selectivity.

Remote Emergency Power Off (R.E.P.O.)

Remote Maintenance Bypass Installation

UPS Usage and Description

UPS Functional Description

Explains the UPS's primary function and block diagram components.

First Start-up Procedures

Guides on initial power-up, switch operations, and basic settings.

Battery Capacity Configuration

Switching On from Mains

Step-by-step guide to powering on the UPS from the mains.

Switching On from Battery (Cold Start)

Step-by-step guide to powering on the UPS using battery power (cold start).

UPS Shutdown Procedure

Instructions for safely shutting down the UPS.

Graphic Display Overview

Navigating the Display Menu

Operating Mode Selection

Describes different UPS operating modes like ON LINE, ECO, and SMART ACTIVE.

Manual Bypass (SWMB) Operation

Explains the procedure for using the manual bypass switch.

UPS Configuration Settings

Detailed UPS Configuration Parameters

Provides detailed default and configurable settings for UPS operation.

Communication Ports

RS232 and USB Connectors

Acoustic Signal (Buzzer) Meanings

Software for UPS Management

Monitoring and Control Software

Configuration Software Usage

Troubleshooting Common Issues

Troubleshooting Display Codes C01, C05

Troubleshooting UPS Startup Failures (Codes A30-A34)

Troubleshooting Phase and Load Issues (Codes F09, F10, F11, F14-F22)

Troubleshooting Connection and Fuse Issues (Codes F03-F05, A08-A10, F42-F44)

Troubleshooting Bypass and Charger Issues (Codes A13-A15, F19, F20)

Troubleshooting Battery and Contactor Issues (Codes A26, A27, S07, F06-F08)

Troubleshooting Temperature and Load Issues (Codes L01, L10, L38-L41, A22-A25)

Troubleshooting Output and Short Circuit Issues (Codes L26-L28)

Battery Replacement Warning (Codes A39, A40)

Over-Temperature and Ventilation Issues (Codes F34-F37, L34-L37)

Static Bypass and Display Malfunctions (Codes L11-L13, Display Blank)

Auxiliary Power and Fan Issues (Display Off)

Status and Alarm Codes

UPS Anomaly Codes

UPS Fault Codes

Lists critical problems that can cause the UPS to lock quickly.

UPS Lock Codes

Explains UPS or component inhibits caused by failures.

Technical Data Specifications

UPS Mode and Efficiency Ratings