ADURO Hybrid Series - User Manual

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Revision date: 22.03.2024

Replacement of the CO sensor on Aduro Hybrid

Difficulty level: Intermediate

Time consumption: 20 minutes

Tools: Allen key 2 mm

NB: All changes and adjustments must be conducted when the stove is cold and disconnected from the

power supply.

The CO sensor is located in the top of the pellet container to ensure that the stove is not being used without

sufficient chimney draft and with non-dusted pellets.

If the CO sensor reads values which reach the yellow or red level, it may be due to the following reasons:

• Dirty/filled up brazier. Clean the brazier to remove any blockage for the air flow for the new pellets. Find

a guide here.

• Insufficient chimney draft. Improve the chimney draft - optionally with an Aduro DraftOptimizer.

• Filling up the pellet container with fresh pellets. New fresh pellets can cause extra dust and can also

degas. These gases are not toxic but can affect the sensor. Let out the pellet gas by opening the door to

the pellet container. Open a window in the same room as the stove, and let the pellets equalize for 10-30

min. We also recommend opening the bag of pellets 24 hours ahead to allow degassing from the pellets.

The hybrid stove has an alarm for high CO level in the pellet container. It is very important that you DO NOT

USE THE STOVE WITH WOOD OR PELLETS until this alarm has been reset. The stove should be monitored to

see if all functions are in order. It is especially important to ensure that both the internal and external augers run

correctly. If you experience smoke in the pellet container, please keep the lid closed until the stove has cooled

down and the smoke has disappeared. This may take several hours.

How to replace the CO sensor

1. The sensor can be accessed from the front trough the bottom door or through the service panel on the right

side of the stove:

Access from the front:

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Do you have a question about the ADURO Hybrid Series and is the answer not in the manual?

The Aduro Hybrid stove is a sophisticated heating appliance designed to provide efficient and safe heating. It integrates a CO sensor to monitor the carbon monoxide levels within the pellet container, ensuring optimal performance and safety. This sensor is crucial for detecting potential issues such as insufficient chimney draft, dirty brazier, or the presence of gases from fresh pellets, all of which can affect CO levels. The stove is equipped with an alarm system that activates if high CO levels are detected, preventing operation until the issue is resolved and the alarm is reset.

Function Description:

The primary function of the Aduro Hybrid stove is to generate heat using either wood or pellets. Its hybrid design allows for flexibility in fuel choice, catering to different user preferences and availability. A key safety feature is the integrated CO sensor, strategically placed in the top of the pellet container. This sensor continuously monitors CO levels to ensure that the stove operates with sufficient chimney draft and that the pellets are not producing excessive gases. If the CO sensor detects levels that reach "yellow" or "red" thresholds, it indicates a potential problem that needs immediate attention. The stove's alarm system will then activate, preventing further operation until the CO levels normalize and the alarm is manually reset. This mechanism is vital for preventing the release of harmful carbon monoxide into the living space and ensuring the stove's safe and efficient operation. The stove also features internal and external augers, which are critical for the proper feeding of pellets, and their correct functioning is monitored to prevent smoke in the pellet container.

Important Technical Specifications:

Difficulty Level for Maintenance (CO Sensor Replacement): Intermediate. This indicates that while the task is not overly complex, it requires some technical understanding and careful execution.
Time Consumption for CO Sensor Replacement: 20 minutes. This suggests a relatively quick maintenance procedure.
Tools Required for CO Sensor Replacement: Allen key 2 mm. This specifies a common tool, making the maintenance accessible.
CO Sensor Location: Top of the pellet container. This placement is strategic for monitoring the conditions within the pellet storage area, which can influence CO emissions.
Alarm System: The stove features an alarm for high CO levels in the pellet container. This is a critical safety feature that prevents operation under unsafe conditions.
App Integration: The Aduro Hybrid app allows users to monitor the CO level, which should normalize to the standard level within a green zone. This provides a convenient way for users to check the stove's status.

Usage Features:

Hybrid Fuel Capability: The stove can operate using both wood and pellets, offering versatility to the user.
CO Level Monitoring: The integrated CO sensor provides continuous monitoring of carbon monoxide levels, ensuring safe operation.
Safety Alarm: In case of high CO levels, an alarm is triggered, and the stove is prevented from operating, enhancing user safety.
App Connectivity: Users can connect to the stove via the Aduro Hybrid app to monitor various parameters, including CO levels, and ensure they are within safe limits (green zone). This remote monitoring capability adds convenience and peace of mind.
Self-Correction Guidance: The manual provides guidance on how to address common issues that lead to high CO levels, such as cleaning the brazier, improving chimney draft (potentially with an Aduro DraftOptimizer), and managing fresh pellets.
Degassing Recommendation: For fresh pellets, it is recommended to open the pellet container door and a window for 10-30 minutes, or open the pellet bag 24 hours in advance, to allow gases to escape, which can otherwise affect the CO sensor.

Maintenance Features:

CO Sensor Replacement Procedure: The manual provides a step-by-step guide for replacing the CO sensor, including access points (front bottom door or right-side service panel), dismounting the old sensor, and mounting the new one.
Pre-Maintenance Safety: All maintenance and adjustments must be performed when the stove is cold and disconnected from the power supply, emphasizing safety during service.
Brazier Cleaning: Regular cleaning of the brazier is recommended to prevent blockages that can affect airflow and lead to increased CO levels. A guide for cleaning the brazier is available.
Chimney Draft Improvement: Users are advised to improve chimney draft if it's insufficient, with the option of using an Aduro DraftOptimizer.
O-Ring Inspection: During sensor replacement, it's crucial to ensure that all three O-rings are properly seated over their respective holes, indicating attention to detail in sealing and component integrity.
Post-Maintenance Verification: After any maintenance, especially CO sensor replacement, it's essential to verify that the CO level normalizes to the standard green zone, either through the Aduro Hybrid app or by ensuring the stove is no longer in alarm mode. This verification process can take up to 20 minutes.
Auger Monitoring: It is important to monitor the internal and external augers to ensure they run correctly, as their malfunction can lead to smoke in the pellet container. If smoke occurs, the lid should remain closed until the stove cools down and the smoke dissipates.