Fantech 402004 Circuit Board
A replacement control circuit board used in select Fantech ventilation units (HRV/ERV series) to restore normal operation when the original board fails.
Key Features:
- Replacement circuit board (Product Type: Circuit Board).
- Intended as a genuine spare part - Fantech notes that genuine parts are tested/approved for compatibility and performance (general spare-parts guidance).
- SupplyHouse lists a related accessory you may also need for some setups: EDF8 Electronic Multifunction Dehumidistat.
Compatibility & Applications:
- Listed "Used With" models/series:
- SHR2005R, SHR2004, SHR150, SHR150R, SHR14104, SHR6904, SHR6905R, SHR8004, SHR8005R, SHR3005R, SHR3205R, SHR11004, SHR11005R
- VHR70, VHR704R, VHR1404, VHR1405R, VHR1904, VHR2005R
- SER1300, SER1504N, SER2004, SER2004N, SER3204D, SER3204N, SER5504N, SER8504N, SER9504, SER13004, SER11504
- Must only be used where the manufacturer specifies this exact part number: 402004 (verify by unit model/serial and the manufacturer's parts guidance).
Installation & Operation Notes:
- The provided sources do not include step-by-step installation instructions. Follow the unit's service/installation documentation for the specific model.
- Fantech recommends using the unit's serial number (located on the product label) to find the correct spare parts via its replacement parts lookup process.
- Review-based practical tip: users recommend documenting wiring/connections (e.g., taking a photo or drawing a diagram) before swapping boards.
Maintenance & Troubleshooting:
- Common symptom leading to replacement (review-reported): HRV/ERV stopped working or had a "bad circuit board."
- Common outcome (review-reported): replacing the board restored operation.
- One reviewer notes the board fixed the issue but the problem partially returned after about a week, suggesting that in some cases additional diagnosis may be needed beyond the board itself (per the unit's service documentation).
User Reviews & Q&A Summary:
- Reviews commonly report:
- Correct fit and successful repair ("fixed my problem," "perfect fit," "works again").
- "Straightforward" replacement (access can be challenging depending on installation location, such as an attic).
- Positive experiences with support and being guided to the correct part (including being able to confirm the right board from a model photo).
- Instructions included with the replacement board (review-reported).