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Swell Sport · Practical guide
What happens to sauna controls after a power cut?
After a power cut, check what the installed sauna controller is actually doing before treating it as ready for another session. Some controllers have a configurable power-failure memory, so “the power is back” does not tell you whether the heater has restarted. Keep a short observation record rather than trying unfamiliar reset combinations.
Know the documented restart behaviour
Fenix instructions describe two power-failure memory states. With memory on, the control unit starts automatically after a blackout; with it off, the system shuts down and requires the on/off button to restart. The same section warns that regional rules may restrict the on setting. Record the commissioned behaviour with your installer instead of changing this setting to suit a routine. [1]
Observe before issuing another command
From the normal operating position, note the panel state, time shown, heating indication and any message. If it is safe to approach, check the room and heater surroundings before starting or preparing remote use again, as the Fenix instructions require. Do not touch the heater to test whether it is powered; the manual warns that its stones and metal parts can burn skin. [2]
Use a power-cut event card
Before interruption: local or app operation; whether heating or a delay was active; last observed screen state. During interruption: approximate time lost; whether the whole property was affected; any known electrical incident. After restoration: time observed; panel display; app display; any error; whether heating appears active; action taken.
Write “not observed” where you do not know. An accurate gap is more helpful than reconstructing a confident account later. Save photographs of the screen, not exposed wiring or opened equipment. Keep a support reference beside the event if advice was needed.
Separate a network issue from an operating-state question
A restored phone connection is not your record of the heater’s physical state. If the app and local panel disagree or one is unavailable, do not keep sending start commands to find out what happens. Use the normal local controls you were shown, leave the sauna out of use if its state is unclear, and report both observations to support.
A handover question worth asking
Ask: “After a loss and restoration of supply, what will this exact setup do, and how do I confirm it has stopped?” Have the installer explain it without deliberately interrupting an active heater. If the answer is not recorded in your documents, add it before relying on remote operation. This is a behaviour check, not an instruction to alter electrical protection.
When the interruption was not an ordinary outage
If there was a protective-device trip, visible damage or unexplained repeated interruption, treat that as a fault enquiry rather than an invitation to restore settings. Fenix reserves maintenance requiring special skills for a trained professional. Keep the event details and arrange appropriate support instead of opening enclosures or repeatedly resetting equipment. [3]
Your practical checklist
- Record the commissioned power-failure memory behaviour.
- Check the local display after restoration.
- Inspect before any new start or remote-ready state.
- Capture unexplained messages and leave settings unchanged.
- Have support resolve uncertain or repeated restart behaviour.
Can I assume a blackout leaves the heater off?
Not on a Fenix system with power-failure memory enabled; its manual describes automatic restart. [1]
Should I factory-reset the controller after every outage?
No routine factory reset is proposed here. Record the actual state and use the specific manual or support advice for the observed issue.
