Resetting a Kent RO water purifier can clear a stuck state, a false alarm, or a fault indicator after you have fixed the underlying issue. This guide gives a quick answer first, then the full step-by-step process and what a reset can and cannot fix.
Quick answer
To reset most Kent RO purifiers, switch off the unit at the socket, unplug the SMPS adaptor, wait 30–60 seconds, then plug back in and switch on. This power-cycle clears most temporary faults and stuck states. A service-related indicator that returns usually means a genuine filter or membrane change is due.
When a reset helps
- After a power fluctuation: Clears a confused control board.
- After fixing input water: Restores normal operation once supply returns.
- To clear a stuck pump state: A power-cycle can restart a paused unit.
- To clear a false alert: Some indicator lights clear on restart if no real fault exists.
Step-by-step reset
- Switch off: Turn off the wall socket powering the purifier.
- Unplug the adaptor: Remove the SMPS adaptor from the socket.
- Wait: Leave it off for 30–60 seconds so the control board fully powers down.
- Reconnect: Plug the adaptor back in and switch on the socket.
- Observe: Watch the indicator lights and listen for the pump as the tank refills.
- Check output: Once refilled, dispense water and confirm normal flow and taste.
If the fault returns after reset
A reset clears temporary states but does not fix hardware or expired filters. If a fault light returns, match it in our Kent RO error codes guide. If the unit still makes no water, work through our guide on a Kent RO not making water. Many recurring alerts simply mean filters are overdue — see how often to change the RO membrane.
Prevention
- Use a stabiliser or surge protector to avoid power-fluctuation faults.
- Change filters and the membrane on schedule.
- Keep input water pressure adequate.
- Service annually or take an AMC.
When to call a technician
Call Kent service if a fault returns immediately after every reset, if the pump is silent with power confirmed, if the adaptor is dead, or if there is a leak. These need a trained technician. If the unit is old and faults are frequent, our best Kent water purifier guide can help you choose a replacement.
Frequently asked questions
Is there a reset button on a Kent RO?
Most Kent models do not have a dedicated reset button; a power-cycle is the standard reset.
How long should I leave it off?
30–60 seconds is enough for the control board to fully reset.
Will a reset delete my settings?
No, a power-cycle does not erase factory settings; it just restarts the unit.
The fault light returns after reset — why?
That usually indicates a genuine issue such as an expired filter or a hardware fault needing service.
Can a reset fix no water output?
Only if the cause was a temporary stuck state; clogged filters or a dead pump need real fixes.