3-Position Change Over Switch, ST-902, fits DeLonghi Space Heaters, 5211010081

3‑Position Change‑Over Switch | Replaces DeLonghi® 5211010081

Restore proper heating mode control with this brand‑new 3‑Position Change‑Over Switch. Designed to replace DeLonghi® part number 5211010081, this switch manages multiple heat settings and operational modes within the heater. Built to OEM‑style specifications, it supports 16(3)A 250VAC, 6(1)A 250VAC, and features a 30° D15 3P 2149 configuration for reliable, long‑term performance.

Product Features:

• ✅ Direct replacement 3‑position change‑over switch for select DeLonghi® heaters
• Rated 16(3)A 250VAC & 6(1)A 250VAC for dependable switching
• Controls multiple heat and fan settings
• Durable internal contacts for long‑lasting reliability
• Condition: Brand New – Unused

Replaces Part Numbers:

5211010081
Always confirm compatibility using your heater model number before purchase.

✅ Fits Models:

DRAGON4 TRD40615T, DRAGON4 TRD40615, DRAGON4 TRD40615T, DRAGON4 TRD40820T, DRAGON4 TRD41025T, DRAGON4 TRD40820, DRAGON4 TRD41025, DRAGON4 TRD40820T, DRAGON4 TRD41020T, DRAGON4 TRD41200MT, DRAGON4 TRD41500MT, DRAGON4 TRD42000MT, DRAGON4 TRD42400MT, DRAGON4 TRD41025B, DRAGON4 TRD40615TC, DRAGON4 TRD40820, DRAGON4 TRD41025, DRAGON4 TRD40615TCA, DRAGON4 TRD40820, DRAGON4 TRD41025, TRD41025T, TRD40820T, TRD40615T‑6A, TRD40615T‑6A, TRD40615TCA
Please verify your model number to ensure proper fitment.

Common Fixes:

• ❌ Heater stuck on one heat setting
• ⚠️ Heater not responding when switching modes
• Intermittent heating or fan operation
• ️ Burned, worn, or loose switch contacts

️ Installation Tips:

• Unplug heater and allow it to cool completely before servicing
• Remove front or rear panel to access the control assembly
• Take a photo of wiring before removal to ensure correct reconnection
• ✅ Install new switch securely and reconnect wires to matching terminals
• Test heater to confirm all heat and fan settings operate correctly

⚠️ Compatibility & Installation Disclaimer:

This change‑over switch is intended for use only with the compatible DeLonghi® heater models listed above. Buyer is responsible for verifying fitment before purchase. Installation should follow manufacturer guidelines or be performed by a qualified technician. Seller is not liable for damage, improper installation, electrical issues, or injury resulting from incorrect use.

Reliable switching. Safe operation. OEM‑style replacement for DeLonghi® space heaters.