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Vaillant THERMOcompact VC110 User Manual

Vaillant THERMOcompact VC110
16 pages
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Vaillant Training/Logical Fault Finding Guide for all
COMBlcompact and THERMOcompact models
v
t
v
~Vaillant
HEATING,CONTROLS,HOTWATER.
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Vaillant THERMOcompact VC110 Specifications

General IconGeneral
Efficiency90%
Fuel TypeNatural Gas
Weight34 kg
Warranty2 years
Boiler TypeCombination
Heating Output23 kW

Summary

Guidance Notes

General Operating Instructions

Key instructions for using the fault finding guide, including appliance checks and operating mode.

Front Control Panel Overview

Identification and function of controls and indicators on the front panel.

Room Sealed Fan Flued Models (RSF)

Initial Setup and Checks for RSF Models

Setting switches and initial checks before commencing fault finding for RSF models.

Red Neon Indicator Fault Diagnosis

Troubleshooting steps if the red neon indicator on the main rocker switch does not glow.

Fan Operation Troubleshooting

Diagnostic steps to identify issues when the appliance fan does not run.

Pump Operation Troubleshooting

Steps to diagnose why the circulation pump is not running.

Hydraulic System Checks

Verifying hydraulic system components and pressures for proper operation.

Ignition Failure Diagnosis

Troubleshooting steps when the appliance does not attempt to ignite.

Burner Not Lighting or Remaining Alight

Diagnosing issues where the burner fails to light or stay lit.

Burner Modulation to High Fire

Troubleshooting burner modulation issues to high fire rate.

Burner Modulation to Low Fire and Shutdown

Diagnosing issues with burner modulation to low fire and shutdown.

DHW Operation Troubleshooting (VCW Models)

Diagnosing problems with domestic hot water operation for VCW models.

Balanced Flue and Open Flue Models

Initial Setup and Pilot Light Checks

Initial setup and troubleshooting steps for pilot light establishment.

Red Neon Indicator Fault Diagnosis

Troubleshooting steps if the red neon indicator does not illuminate.

Pump Operation Troubleshooting

Diagnosing issues where the circulation pump fails to run.

Hydraulic System Checks

Verifying hydraulic system components and potential blockages.

Burner Ignition Troubleshooting

Diagnosing why the burner fails to light.

Burner Modulation to High Fire

Troubleshooting burner modulation issues to high fire rate.

Burner Modulation to Low Fire and Shutdown

Diagnosing burner modulation to low fire and shutdown.

DHW Operation Troubleshooting (VCW Models)

Diagnosing problems with domestic hot water operation for VCW models.

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