REMEHA Quinta Pro 90 Service Manual

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Great Britain

EN

Wall-hung gas condensing boilers

Quinta Pro 30 - 45 - 65 - 90 - 115

Installation and

Service Manual

123157-AA

Table of Contents

Other manuals for REMEHA Quinta Pro 90

Installation, User And Service Manual88 pages

Questions and Answers:

C
Curtis SandovalAug 28, 2025
What causes REMEHA Quinta Pro 90 temperature of heat exchanger to be too low?
- M
  Melissa CoxAug 28, 2025
  If the temperature of the heat exchanger in your REMEHA boiler is too low, it could be due to a bad connection, the sensor not being connected correctly, or no circulation. Check that the sensors are operating correctly, and that the sensor has been fitted properly. If necessary, replace the sensor. Vent the air from the CH system, check the circulation (direction, pump, valves), the water pressure, and the cleanliness of the heat exchanger. If present, check the boiler type parameter setting.
R
robertgarzaAug 28, 2025
What to do if REMEHA Quinta Pro 90 Boiler shows communication error with the SCU PCB?
- T
  Thomas ButlerAug 29, 2025
  If your REMEHA boiler shows a communication error with the SCU PCB, it may be due to a poor connection with the BUS or the SCU PCB not being present in the boiler. Check the wiring and carry out automatic detection.
D
Damon BradleyAug 29, 2025
What causes REMEHA Quinta Pro 90 fan operation error?
- P
  Peter HallAug 29, 2025
  A fan operation error in your REMEHA boiler could stem from a bad connection or a defective fan. Ensure adequate draw on the chimney connection and replace the fan if necessary.
A
Amber LinAug 25, 2025
What to do if REMEHA Quinta Pro 90 water pressure is too low?
- S
  sbauerAug 25, 2025
  If the water pressure in your REMEHA boiler is too low, ensure that you check the water pressure and fill the boiler and the installation with water.
A
Ana MolinaAug 30, 2025
What to do if REMEHA Quinta Pro 90 Boiler phase and neutral of mains supply mixed up?
- M
  Mrs. Deborah YoungAug 30, 2025
  If the phase and neutral of the mains supply are mixed up in your REMEHA boiler, it is likely due to incorrectly wired mains supply or a floating network or 2-phase network. Invert phase and neutral and set parameter to the correct setting.
T
Travis SanchezAug 30, 2025
Why REMEHA Quinta Pro 90 Boiler has no release signal?
- J
  Jacob ShortAug 30, 2025
  If your REMEHA boiler has no release signal, it could be due to an external cause, parameter error, or bad connection. Remove any external causes, check the parameters, and check the wiring.
J
Jeremiah KimAug 31, 2025
What to do if the REMEHA Quinta Pro 90 flow temperature sensor is short circuited?
- S
  Sherri ChoiAug 31, 2025
  If the flow temperature sensor of your REMEHA Boiler is short circuited, it could be due to several reasons. First, check the wiring for any bad connections. Then, verify that the sensors are operating correctly and that the sensor has been correctly fitted. If these steps don't resolve the issue, consider replacing the sensor.
B
Blake PhelpsAug 31, 2025
What to do if the REMEHA Quinta Pro 90 Boiler safety parameters are incorrect?
- V
  Victor BarrySep 1, 2025
  If the safety parameters for your REMEHA Boiler are incorrect, it might be due to a bad connection. In this case, check the wiring. Alternatively, the PSU could be defective, so consider replacing it.
T
tina39Sep 1, 2025
What to do if the REMEHA Quinta Pro 90 flow temperature sensor has an open circuit?
- A
  Andrea OwensSep 1, 2025
  If the flow temperature sensor of your REMEHA Boiler has an open circuit, first check the wiring for any bad connections. Also, check that the sensors are operating correctly and that the sensor has been correctly fitted. If the problem persists, replace the sensor.
M
Michelle MannSep 1, 2025
How to fix REMEHA Boiler storage unit PSU parameter not found?
- V
  vthompsonSep 2, 2025
  If the storage unit PSU parameter is not found in your REMEHA Boiler, the problem could be a bad connection. Check the wiring to resolve this issue.

REMEHA Quinta Pro 90 Specifications

General

Mounting	Wall-mounted
Max Heat Output	90 kW
Fuel	Natural Gas / LPG
Max working pressure	6 bar
NOx class	5

Summary

EG Declaration of Conformity

1 Introduction

1.1 Used symbols

Explains symbols used for danger, warning, and caution.

1.4 Homologations

Details certifications, device categories, and directives for the boiler.

2 Safety instructions and recommendations

2.1 Safety instructions

Outlines critical safety precautions for gas and flue gases.

2.2 Recommendations

Provides advice on installation, maintenance, and appliance handling.

3 Technical description

3.1 General description

Overview of high-efficiency wall-hung condensing gas boilers.

3.2 Main parts

Identifies and labels the key components of the boiler.

3.3 Operating principle

Explains how the boiler functions, including pump operation.

4 Installation

4.1 Regulations governing installation

States the requirement for qualified professionals and adherence to regulations.

4.3 Choice of the location

Guidance on selecting an appropriate installation site for the boiler.

4.5 Hydraulic connections

Steps for connecting the boiler's water circuits.

4.4 Positioning the boiler

Instructions for mounting and hanging the boiler securely on the wall.

4.6 Gas connection

4.7 Connections for the air and exhaust pipes

Details on connecting ventilation and flue gas systems.

4.8 Electrical connections

Instructions for wiring the boiler to control systems and power.

5 Start-up

5.1 Control panel

Details the functions of the boiler's control panel and display symbols.

5.2 Check points before commissioning

Lists essential checks before putting the boiler into operation.

5.4 Gas settings

Procedures for adjusting gas type and air/gas ratio for optimal performance.

6 Switching off the appliance

6.1 Installation shutdown

Steps for safely switching off the boiler for long periods.

6.2 Antifreeze protection

Explains the boiler's frost protection features and precautions.

7 Checking and maintenance

7.2 Preventive maintenance with automated "service message"

Guides on performing preventive maintenance based on the service message.

7.3 Standard inspection and maintenance operations

Details routine checks and maintenance tasks for the boiler.

7.4 Specific maintenance operations

Covers additional maintenance tasks beyond standard inspections.

8 Troubleshooting

8.1 Error codes

Lists and explains error codes displayed by the boiler.

8.2 Shutdowns and lock-outs

Details boiler lockout conditions and their meanings.

8.3 Error memory

How to access and interpret the boiler's error log.

9 Spare parts

9.1 General

Guidelines for ordering and replacing boiler components.

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