Proboost by Joule recalled due to overheating capacitor risk in control box
Chewbay Ltd T/A Joule Ireland is recalling the Proboost Cold Water Storage Tank due to a risk of the capacitor component overheating, which could lead to smoke, fumes, and a potential fire hazard. The affected product numbers are OPB-0340-00SVS and OPB-0540-00SVS.
- Brand
- Proboost by Joule
- Product
- Proboost Cold Water Storage Tank
- Batch codes
- OPB-0340-00SVS, OPB-0540-00SVS
- What to do
- If you smell smoke or fumes coming from the unit, please isolate the unit and contact Joule on 01 5392427 before turning the unit back on.

The Proboost Cold Water Storage Tank, manufactured by Chewbay Ltd T/A Joule Ireland, has been identified as having a safety issue concerning its control box. Specifically, the capacitor component may overheat, which can damage the control box and produce smoke and fumes. This situation poses a fire risk, especially if flammable materials are nearby.
The affected product numbers are OPB-0340-00SVS and OPB-0540-00SVS, with approximately 647 units sold in the Republic of Ireland. Consumers who own these models should be aware of the potential hazards associated with their units.
If you notice any smoke or fumes coming from the Proboost Cold Water Storage Tank, it is crucial to isolate the unit immediately using the local isolator. Turn the isolator switch to the “off” position and contact Joule Ireland at 01 5392427 before attempting to turn the unit back on. Joule Ireland is proactively reaching out to consumers to arrange for an engineer to perform necessary repairs. If you have not been contacted yet or have additional questions, please reach out to Joule Ireland directly, referencing Proboost Upgrade.
From the official notice
Notice details Publication date: 14 April 2025 A safety issue has been identified within the control box of the Proboost Cold Water Storage Tank from Chewbay Ltd T/A Joule Ireland. Joule Ireland has identified a risk of the capacitor component within the control box overheating. This could result in damage to the part and to the control box which could generate smoke and fumes. This also presents…
Read the full notice at Competition & Consumer Protection Commission →
Frequently asked questions
Is Proboost Cold Water Storage Tank being recalled in Ireland?
Yes. Chewbay Ltd T/A Joule Ireland is recalling the Proboost Cold Water Storage Tank due to a risk of the capacitor component overheating, which could lead to smoke, fumes, and a potential fire hazard. The affected product numbers are OPB-0340-00SVS and OPB-0540-00SVS.
Why is Proboost Cold Water Storage Tank being recalled?
The recall relates to a fire / burn hazard. Chewbay Ltd T/A Joule Ireland is recalling the Proboost Cold Water Storage Tank due to a risk of the capacitor component overheating, which could lead to smoke, fumes, and a potential fire hazard. The affected product numbers are OPB-0340-00SVS and OPB-0540-00SVS.
What should I do if I have this product?
If you smell smoke or fumes coming from the unit, please isolate the unit and contact Joule on 01 5392427 before turning the unit back on.
Which batches of Proboost Cold Water Storage Tank are affected?
The affected batch codes are: OPB-0340-00SVS, OPB-0540-00SVS.
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