Harvia Contactor 30A, Controls & HTR

Contact us to confirm compatibility with your specific model before ordering.

Control system installation — low-voltage signal wiring; typically DIY-friendly. Consult the included manual for model-specific diagrams.

1. Power down the steam generator at the breaker before working with any wiring.
2. Mount the control unit at the desired wall location (typically inside or adjacent to the steam room, at accessible height).
3. Route the signal cable from the control to the generator junction box — keep away from high-voltage wiring.
4. Connect the wires to the labeled terminals on both the control and the generator (typically color-coded or numbered).
5. Secure all cable runs with clips or conduit as required by local code.
6. Restore power and follow the pairing/commissioning sequence in the manual.
7. Test all functions: heat, timer, aromatherapy (if equipped), and indicator lights.

This part is designed for use with:

• Harvia Electric Sauna Heaters
• Traditional Sauna Rooms

Control compatibility: Steam generators have a specific control protocol. Mix-and-match between brands is not supported. Verify the exact control family (e.g., AirTempo vs. iSteamX) matches your generator.

Not sure if this fits your system? Contact us with your model number and we'll confirm before you order.

Standard parcel shipping — ships within 1–2 business days via UPS or FedEx.

• Tracking number emailed when shipped.
• Estimated transit: 2–5 business days depending on destination.
• Expedited shipping options are available at checkout.
• Orders placed before 5pm ET on business days ship the same or next business day.

Canada: We ship this part to Canada too — shipping is calculated at checkout. Duties and taxes may apply at the border.

Questions about your order? Email info@saunacompanyusa.com or use our contact page.

Harvia Manufacturer Warranty: 1-Year Limited Warranty (Consumer Use) and 1-Year Limited Warranty (Commercial Use)

Returns: Parts & accessories are non-returnable once ordered. This policy exists because installed or opened components cannot be resold as new. Please verify compatibility thoroughly before purchasing — we're here to help.

Defective items: If your part arrives damaged or defective, contact us within 48 hours of delivery. We will arrange a replacement at no charge with proof of the defect (photos or video).

For warranty claims, visit our Warranty Claims page.