Quick answer: If you're looking for help with a SaunaLogic 2 (SL2) sauna controller or its mobile app, that product is made by Amerec, a commercial sauna equipment manufacturer. This website. SaunaLogic.com, is an independent sauna review site and is not affiliated with Amerec and did not make your controller. For official SL2 manuals, wiring guides, and app support, go to the manufacturer's website at amerec.com or contact the dealer who installed your sauna.
Why you landed here
Amerec's control system and our review site share a similar name. We used to host a few articles about the SL2 controller; we've consolidated them into this page to avoid confusion.
Where to get real SaunaLogic 2 support
- Manuals & wiring: the official Amerec site (amerec.com) publishes SL2 installation and user manuals, including wiring diagrams for their heaters.
- App pairing / Wi-Fi issues: the SL2 app requires a 2.4 GHz Wi-Fi network. If pairing fails, confirm your phone is on the same 2.4 GHz network (not 5 GHz), power-cycle the controller, and re-run setup from the app. Persistent issues are best handled by Amerec support or your installing dealer, who can check the control board directly.
- Replacement parts: SL2 controllers and sensors are sold through Amerec dealers, not through this site.
SL2 compatibility at a glance
| Component | Designation we can confirm | What it replaces or serves |
|---|---|---|
| SaunaLogic 2 controller | SL2 | the earlier SL2 controller articles consolidated here |
| Temperature sensor | SL2 sensor | supplied with the controller, sold separately |
| Heater | Amerec heater documented for SL2 | the heater fitted at install |
Amerec's manual, not this table, decides which heater a controller is rated to drive.
Is the controller or the heater at fault?
The split that matters is not "does it heat" but "does the controller respond". Stop at the first failure.
- Is the cabin actually cold? Read a separate thermometer at bench height; a display showing a temperature the room does not have is a sensor or controller fault, and a standalone thermometer and hygrometer gives that independent reading.
- Does the controller power up and answer touches? If not, check the breaker and any fitted disconnect, then call it a controller problem.
- Power-cycle it once. Amerec's first-line advice; it clears a stuck control state as often as a stuck radio.
- Does it command heat? A session that runs with no temperature rise after the preheat time points at the heater or its wiring.
- Will the app connect? If not, confirm 2.4 GHz rather than 5 GHz and re-run setup; non-Wi-Fi faults are in our Bluetooth and audio pairing guide.
- Stop at the control board. Board, contactor, element, and high-limit are inside a mains-powered enclosure: Amerec support checks the board, an electrician goes inside.
Parts and replacements: what to order
SaunaLogic.com sells none of this; Amerec dealers sell SL2 controllers and SL2 sensors.
- The controller, if the display or board has failed. Ask for the SL2 controller, not "a SaunaLogic controller" — the name here is not the name on the part.
- A temperature sensor, if the cabin reads a temperature it does not have; it is a separate line item and the cheaper one to try first.
- Whatever the manual names as serviceable for your heater — check the SL2 manual and your heater's manual, or ask the manufacturer.
- Nothing else. Elements, contactors, and high-limit switches are heater parts, not controller parts.
What to write down before you call support
There is no error-code table here: the SL2's codes belong to Amerec's manual. Arrive with these instead.
- Controller model and serial, from the label or the app.
- Heater make, model, and rating, from the plate on the heater.
- When it started, and what changed just before it.
- What the display does: dead, frozen, false temperature, or working but not heating.
- What you already tried, including the 2.4 GHz check and the power cycle.
- A photo of the control-board wiring, breaker off, plus install date and dealer name.
What we actually do
SaunaLogic.com publishes independent, engineering-grade reviews of home saunas, sauna blankets, red light therapy devices, and cold plunges. Every recommendation carries a dated "what we verified" list, prices, warranties, and electrical requirements checked against the manufacturer.
If you ended up here while researching a new sauna rather than fixing a controller:
- Best home saunas, our current ranked picks
- What a home sauna really costs to run
- All sauna reviews and guides
Frequently Asked Questions
Who makes the SaunaLogic 2 controller and where can I get official support?
The SaunaLogic 2 (SL2) controller is manufactured by Amerec, a commercial sauna equipment manufacturer. Official support, including installation manuals, user manuals, and wiring diagrams, can be found on their website at amerec.com. You can also contact the dealer who installed your sauna for assistance.
How do I troubleshoot Wi-Fi pairing issues with the SaunaLogic 2 app?
To resolve pairing issues, first confirm that your phone is connected to a 2.4 GHz Wi-Fi network rather than a 5 GHz network. Next, power-cycle the controller and try running the setup again from the app. If the issues persist, you should contact Amerec support or your installing dealer to inspect the control board.
Can I buy replacement parts for my SL2 controller on SaunaLogic.com?
No, SaunaLogic.com does not sell replacement parts for the SL2 controller. Replacement controllers and sensors must be purchased through authorized Amerec dealers. This website is an independent review site and is not affiliated with the manufacturer.
What is the relationship between SaunaLogic.com and the SaunaLogic 2 controller?
There is no affiliation between SaunaLogic.com and the SaunaLogic 2 controller or its manufacturer, Amerec. SaunaLogic.com is an independent sauna review site that publishes engineering-grade reviews of home saunas, sauna blankets, and other wellness devices. The site previously hosted articles about the SL2 controller but consolidated them to prevent confusion caused by the similar names.
