Servicing, filters and repairs for every Vent-Axia Sentinel Kinetic unit, plus a plain-English guide to its fault codes. Full service from £149, across Bristol, Bath and the South West.
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VENT-AXIA SENTINEL
Sentinel Kinetic is Vent-Axia’s range of MVHR units, and one of the most common systems we see in new-build flats and family homes. It extracts stale, moist air from kitchens and bathrooms, recovers heat from it, and supplies filtered fresh air to the rest of the home.
We service and repair every model, including the Kinetic B, BH, FH, Plus B and High Flow. Your model is on the label on the unit, and it tells you which filters you need.
When a fault has stopped the unit for more than 3 minutes, the display shows a fault code. If there’s more than one fault, the codes are added together.
The fan that brings fresh air in has stopped. Usually a failed motor or an electrical fault.
The fan that removes moist air has stopped. Expect condensation until it’s fixed.
01 and 02 added together. The unit isn’t ventilating at all.
The wired remote control isn’t communicating with the unit.
The filter service interval is up. Clean or replace the filters, then reset the reminder.
Fresh air is bypassing the heat exchanger to help keep your home cool. Normal, not a fault.
The unit is cutting supply airflow in freezing weather to protect itself. Normal in very cold spells.
Below 5°C the fans stop. The unit restarts every hour to check the temperature.
Source: Vent-Axia Sentinel Kinetic installation and commissioning manual. View the manual (PDF)
What Vent-Axia’s own documents recommend, and what we cover at every service.
Only need filters? Order the right set and we’ll post it to you.
Send us the model from the label on your unit and we’ll confirm the right set.
Same fixed prices for every make, confirmed before we arrive.
£149
Deep clean, new filters, airflow tested and rebalanced in every room, photo report. 90–120 min.
£80
Full diagnosis, duct and airflow checks, PCB testing, written repair quote.
From £1,290
Supply and fit, controls set up, airflow set, hand-over demonstration.
What customers say after a Ventfix visit.
We service all makes and models, including
On a Sentinel Kinetic, 01 means the supply fan isn’t running and 02 means the extract fan isn’t running. The unit has switched itself off because of the fault, so book a fault-finding visit.
Codes are added together when there’s more than one fault, so 03 means both fans aren’t running (01 + 02).
Your filters are due. Clean or replace them, then reset the reminder using the button combination in your unit’s manual. We sell FH and BH filter sets, or can fit them at a service.
The room temperature has dropped below 5°C, so the unit has stopped its fans. It restarts every hour to check the temperature.
Vent-Axia recommends an annual professional service, with filters changed every 6 to 12 months depending on whether you live in an urban, suburban or rural area.
Yes. We sell FH and BH filter sets online and can post them to you, or fit them as part of a service.
Ventfix is an independent MVHR specialist and is not affiliated with or endorsed by Vent-Axia. Brand names are trademarks of their respective owners. Full manuals are available from Vent-Axia.
Fixed price, the right filters, photo report after every visit.
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