Dometic marine AC main control board (Unity “U-Board”, PCB-501-00H) for self-contained and DX systems — OEM 223100502 family.
SKU / Ref: PCB-501-00H
The Dometic Unity Control Board (“U-Board”, silkscreen PCB-501-00H) is the main control PCB for Dometic marine air conditioning — self-contained and direct-expansion (DX) systems. It corresponds to Dometic OEM part 223100502 and interfaces with most Dometic / Cruisair / Marine Air displays via 6- and 8-pin cables. A Micro-Air Unity board (501-09) is available as a drop-in replacement.
| Board | PCB-501-00H (Unity “U-Board”) |
|---|---|
| OEM cross | 223100502 (also 223100504/508/510) — confirm |
| Aftermarket | Micro-Air 501-09 drop-in |
| Displays | 6- and 8-pin Dometic / Cruisair / Marine Air |
| Systems | Self-contained & DX marine AC |
| Brand | Dometic |
As marked / for identification only — confirm fitment before ordering.
PCB-501 is a Dometic part — the Unity “U-Board” main control board (OEM 223100502 family). It is not a Webasto board.
Yes — the Micro-Air Unity board (501-09) is a direct drop-in for Dometic 223100502/504/508. We supply OEM and aftermarket; confirm your exact part with us.
Send us the part number or system details and we’ll reply fast with pricing and availability — with worldwide shipping from Dubai.
Talk to Royal Queen Marine — Dubai’s marine HVAC parts & service specialists. Worldwide shipping.
