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PS1: UC4 & UC10 Marco Boiler Troubleshooting

How to set up your Marco boiler with PS1 3-Cup and PS1 5-Cup Poursteadys

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Written by Poursteady Support
Updated over a month ago

Executive Summary

This SOP outlines the standardized procedure for installing the Marco UC Boiler and connecting it to the Poursteady brewing system. It ensures accurate temperature delivery and optimal performance, while mitigating operational failures such as pour cut-offs.

IMPORTANT NOTE:

Steady Equipment Corp and Poursteady does not service Marco boilers directly. For all issues with your Marco boiler, please contact Marco Beverages directly at: https://marcobeveragesystems.com/us/contact/

A. Process Overview

  • Purpose: To ensure safe and proper installation of the Marco UC Boiler for integration with the Poursteady brewer.

  • When Used: During initial installation or replacement of the hot-water boiler unit.

  • Outcome: A fully connected and operational boiler capable of delivering water at optimal temperature for brewing.

B. Prerequisites & Preparation

  • Required Tools & Equipment:

    • Marco UC Boiler (UC10 or UC4 Eco Smart)

    • Poursteady Brewer

    • Hot-water supply tubing with black insulation

    • Utility knife or tubing cutter

    • Power source and water line access

  • Permissions & Credentials:

    • Certified technician clearance to install electrical appliances

    • Access to the installation space below the counter

  • Environmental Setup:

    • Adequate ventilation

    • Space under counter for boiler placement

C. Step-by-Step Procedure

1. Install Marco UC Boiler

  • Position the Marco UC Boiler directly below or as close as possible to the hole in the countertop.
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  • Follow all installation instructions provided with the hot-water heater regarding water and electrical requirements.
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  • Note: Water quality significantly affects the boiler and brewer lifespan. Install a filter if needed.

2. Connect Hot-Water Supply Tube

  • Guide the hot-water supply tube and its black insulation, connected to the Poursteady, through the counter slot.

  • Route the loose end of the tubing and insulation to the barbed OUT fitting located on top of the Marco boiler.

  • Cut tubing to length, if necessary, using a tubing cutter.

  • Securely slide the plastic tubing over the barbed fitting until it fits tightly.

3. Turn On Marco UC Boiler

  • Plug in the water heater.

  • Set the desired temperature using Marco's instructions.

    • Temperature Tip: There is a 6°F-8°F (3°C-5°C) drop from the boiler to the nozzle. Set the boiler to 206°F (96°C) to achieve 200°F (90°C) at the nozzle.

  • Wait until the boiler indicates readiness.

D. Quality Control & Verification

  • Checkpoints:

    • Tubing is secure and leak-free

    • Boiler reaches set temperature and holds it

    • Poursteady receives hot water at intended flow and temperature

  • Indicators of Failure:

    • No water at nozzle

    • Intermittent pouring

    • Boiler error messages

E. Troubleshooting Guide

Check First: Push & Hold Mode

Issue: Water cuts off during pour or does not pour at all but the nozzle continues to move.
​Cause: Boiler may not be in "Push & Hold" mode.

Solution: Enable Push & Hold Mode

  1. Press and release the Power and Eco buttons to access the USER SETUP screen.

  2. Use the Power button to scroll and the Eco button to increase values.

  3. Set the following:

    • Time Disp: 00.0

    • Pauses: 00

    • Pause Time: 00.0

  4. Confirm and exit settings.
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Check Second: How to Diagnose if the Issue is the Boiler or Poursteady

Issue: Water is not dispensing from the Poursteady.
​Cause: Boiler or valves are malfunctioning de.

Solution: Isolate the issue to either the Poursteady or boiler

  1. Make sure that the Poursteady Boots & Homes and responds to button touches

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    • Wait 2 minutes

    • Re-plug in the Poursteady

    • Within five minutes, the Poursteady should:

      • lights should flash

      • nozzle should move back and forth then side to side

      • Poursteady should respond to button touches

    • If the Poursteady Boots & homes and responds to button touches move to step 2
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      ​

  2. Test the Communication Cable

    • <iframe width="560" height="315" src="https://www.youtube.com/embed/MooMS8d_dI0?si=hkT-M1mlGzvBrnh0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>

    • Disconnect both the communication cable and insulated feed tube from the poursteady.

    • Place the feed tube in a separate container or drain so hot water can dispense safely without moving or overflowing, reducing the risk of hot-water burns.

    • Short the end of the communication wire with a piece of wire that is stripped on both sides.
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    • If water does not dispense, the issue is either your communication wire or boiler.

    • If water does dispense, then the issue is the Poursteady itself (you do not need to continue to the other steps if water dispenses)
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  3. Test the Boiler

    • In a similar way to testing the boiler communication wire, you can also test to see if the boiler pump is functional by using the same stripped wire to short the communication terminal on the boiler by touching the metal ends of the wire to the terminal’s prongs.

    • If water does dispense, then the issue is the communication wire

    • If water does not dispense, then the issue is the boiler

For all issues with your Marco boiler, please contact Marco Beverages directly at: https://marcobeveragesystems.com/us/contact/

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