Solatube WHF3000 — Dimmer Module Facts

Documented from photos taken in the attic — June 12, 2026.


Attic Installation

The Solatube WHF3000 installed in the attic — shows the fan unit, ductwork, wiring, and outlet setup

Solatube WHF3000 Product Label

Close-up of the Solatube label showing model WHF3000, mfg date Sep 2020, part no. 540340 Rev A

PPA401S Dimmer Module

Close-up of the 0-10V Wireless Dimming Module — model PPA401S, full specs visible

Whole House Fan (Solatube WHF3000)

FieldValue
BrandSOLATUBE
Product TypeWhole House Fan
ModelWHF3000
Part No.540340 Rev A
Date of Mfg.September 2020
Address2210 Oak Ridge Way, Vista, CA 92081
Websitewww.solatube.com

Compatibility (modular combos)

  • WHF3000 + WHF1500 → converts to WHF4500
  • WHF3000 + WHF3000 → converts to WHF6000

Dimmer Module (PPA401S)

FieldValue
Type0-10V Wireless Dimming Module
ModelPPA401S
VersionV1.4
Mfg. Date06-20 (likely June 2020)
Made InChina
FCC ID2AQ3JPPA401S
UL File No.E504054
UL ListingUL US LISTED (US + Canada)

Electrical Specs

  • Input: 120-277V AC, 50/60Hz, Max 10A, 1200W
  • Output: 120-277V AC, 50/60Hz, Max 10A, 1200W
  • Input type: Branch circuit (mains)
  • Output type: Branch circuit (mains)
  • Environment: Dry and damp locations
  • Tc MAX: 70°C | Ta MAX: 55°C

Wiring / Connections

TerminalWire ColorFunction
NWH (White)Neutral
LBK (Black)Line (hot in)
L’RD (Red)Switched hot (load out)
0-10V DIM +Purple0-10V positive
0-10V DIM -Grey0-10V negative (common)

Controls & Indicators

  • PAIR/TEST button — for wireless pairing and testing
  • Green LED — status/power/pairing indicator
  • + / - buttons — labeled under “0-10V DIM”

Warnings

  • Disconnect power before servicing.
  • Install in accordance with national and local electrical codes.
  • ⚠️ The control circuit is not isolated — see instructions. (The 0-10V dimming wires may carry hazardous voltages; not a safe low-voltage signal path.)

Installation Context

  • Fan and module are installed in an attic/crawlspace (exposed rafters, fiberglass insulation).
  • A black corrugated UL-listed cable feeds the module.
  • A standard 120V duplex outlet on a rafter powers the unit via a plug.
  • A flashlight was clipped to the unit to illuminate the label area for photography.

The following pages contain research and cost analysis based on the facts above — these are separate since they involve online shopping research and some speculation:


Open Questions

  • What remote/controller is compatible with the PPA401S module?
  • Is there a Solatube-branded remote specific to the WHF3000?
  • Can any standard 0-10V wireless controller pair with this module?