Photo may vary slightly — verify by part number before ordering.Greenheck 386228 Humidity Sensor, RH, Mamac, VA-921-VDC-7
Ships from our warehouse or Greenheck's warehouse — we email tracking the moment it leaves.
Not sure it's the right part? Send the model and serial — help@totalhvacparts.com or 302-219-4994.
Overview
Genuine Greenheck OEM Humidity Sensor, RH, Mamac, VA-921-VDC-7 — part number 386228. Greenheck lists its length 4.5 in, width 3 1/2 in, height 1 1/2 in, and weight 0.2 lbs. Match the part number on your original part or your unit's parts list before ordering.
Ships via UPS or FedEx Ground. Free standard shipping to U.S. addresses. Returnable within 30 days of delivery when new, uninstalled and in the original packaging — see our Return and Refund Policy. Backed by Greenheck's manufacturer warranty. Sold as a genuine Greenheck Group OEM part for Greenheck, Valent and Innovent equipment — not an aftermarket substitute. Intended for licensed HVAC contractors and facilities teams.
Frequently asked questions
What is Greenheck part 386228?
Greenheck 386228 is a genuine OEM Humidity Sensor, RH, Mamac, VA-921-VDC-7.
What are the dimensions and weight of 386228?
Greenheck lists length 4.5 in, width 3 1/2 in, height 1 1/2 in, weight 0.2 lbs.
How does 386228 ship, and can it be returned?
Ships via UPS or FedEx Ground. Free standard shipping to U.S. addresses. Returnable within 30 days of delivery when new, uninstalled and in the original packaging — see our Return and Refund Policy.
How do I confirm 386228 is the right part?
Match the part number on your original part or your unit's parts list before ordering.
Specifications
Values in italic are not yet confirmed from OEM documentation. Ask us to verify before ordering.
After You Order
Order number and confirmation by email the moment you check out.
35 Days Lead Time — ships from our warehouse or Greenheck's warehouse. We email tracking the moment it leaves; ask the parts desk first if timing matters.
Tracking number lands in your inbox the moment it leaves the building.
Check the part number on the label against your order before installing. Wrong or damaged? Tell us — we'll sort it out.
Ask the Parts Desk
Not sure this fits? Need more than what's in stock? Send the model and serial from the unit's data plate — a real person reads it and confirms before you order.
Common Questions
Is the stock number on this page real?
The number on this page is Greenheck's own on-hand count for 386228, checked Oct 23, 2026; it ships from our warehouse or Greenheck's warehouse. When Greenheck shows none on hand the page says so and the part ships on a lead time, from our warehouse or Greenheck's warehouse.
Is this a genuine Greenheck Group part, or aftermarket?
Genuine Greenheck Group OEM equipment sourced through Greenheck Group's authorized parts program — not an aftermarket substitute.
How do I confirm this fits my unit?
Match part number 386228 to your unit's parts diagram. If unsure, send us your model and serial number and we'll verify before you order.
What's the warranty on this part?
Warranty terms vary by manufacturer. Contact us with your order number for details specific to this part.
How fast does this ship?
35 Days Lead Time for this part — it ships from our warehouse or Greenheck's warehouse. In-stock items ship the same business day on orders placed before 1pm ET, Monday–Friday. Standard ground delivers to most of the continental US in 2–5 business days. Ships via UPS or FedEx Ground — expedited available. Free standard shipping (US).
Does everything ship UPS or FedEx Ground?
Most orders ship UPS or FedEx Ground. A small number of large or heavy parts across the catalog ship by truck freight instead, and we reach out to arrange a delivery window before those orders leave the warehouse. Oversized items that ship by truck freight are also covered by free standard shipping on orders of $50 or more.
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