Your infrared sauna may not be heating up due to issues like a faulty power supply, damaged heating elements, incorrect temperature settings, or insufficient insulation, so check these factors to troubleshoot effectively.
An infrared sauna that won’t heat properly ruins your relaxation routine. Before calling a technician, check these common issues that could be causing the problem.
Power Supply Problems
Your sauna needs steady electricity to function. Start with these basic checks:
Tripped Circuit Breaker
Locate your home’s breaker box. If the sauna’s circuit has tripped, reset it. Persistent tripping indicates an electrical issue requiring professional help.
Blown Fuse
Some saunas have internal fuses. Check for discolored or broken fuse wires. Replace with an identical-rated fuse if needed.
Loose Wiring Connections
Inspect all power cords and terminal connections. Unplug the sauna first. Tighten any loose wires and look for damaged insulation.
Thermostat Malfunctions
The thermostat controls heating output. Test it with these steps:
- Set the thermostat to maximum temperature
- Wait 15 minutes
- Check if heating elements activate
If elements don’t respond, your thermostat may need replacement. Compare its readings with a separate thermometer for accuracy.
Heating Element Failures
Infrared saunas use multiple heating panels. Troubleshoot them this way:
| Element Location | Test Method | Solution |
|---|---|---|
| Back Wall | Check for visible glow | Replace if dark |
| Side Panels | Feel for warmth | Check wiring connections |
| Floor/Seat | Use infrared thermometer | Test voltage supply |
For more on heating technologies, see our guide on how infrared heating works.
Ventilation Issues
Proper airflow prevents overheating shutdowns:
- Clear all intake and exhaust vents
- Ensure 6-inch clearance around sauna
- Check that door seals aren’t blocking vents
Control Board Problems
The main control board manages all functions. Warning signs include:
- Error codes on display
- Unresponsive buttons
- Intermittent operation
Reset the control board by unplugging the sauna for 30 minutes. If issues persist, consult the manufacturer.
Environmental Factors
External conditions affect performance:
Cold Room Temperature
Infrared saunas work harder in chilly spaces. Pre-warm the room to at least 65°F (18°C) for best results.
High Humidity
Moisture can trigger safety cutoffs. Use a dehumidifier in damp areas.
When to Call a Professional
Seek expert help for:
- Electrical repairs beyond basic connections
- Gas line issues (for hybrid models)
- Structural damage to sauna cabin
For related heating solutions, explore ventless natural gas heaters as alternatives.
Preventive Maintenance Tips
Keep your sauna running smoothly with these practices:
- Clean heating panels monthly with dry cloth
- Inspect wiring quarterly
- Test thermostat accuracy every 6 months
- Replace air filters if equipped
According to sauna experts, most heating issues stem from simple electrical faults that owners can fix themselves with proper guidance.
Understanding Heating Times
Normal warm-up periods vary:
- Small personal saunas: 10-15 minutes
- Medium cabins: 20-30 minutes
- Large commercial units: 45-60 minutes
If your sauna takes significantly longer, investigate the causes above. For comparison of heating methods, see our analysis of infrared vs oil-filled radiators.
