Description
⚙️ Marquis® EL2000 Mach 2.1 Replacement Circuit Board — 600-6289 (MQ2KUR1A) — Balboa® 53579
Genuine Balboa®-manufactured circuit board for Marquis® spa control systems using the EL2000 Mach 2.1 platform — chip MQ2KUR1A, Molex style plug.
⚠️ IMPORTANT — PLEASE READ BEFORE ORDERING
- Measure your mounting holes before ordering. Boards 600-6289 and 600-6292 look identical and function identically, but have different mounting hole positions. Measure across the bottom of your existing board — left to right — before ordering: 600-6289 has holes at 1/4″, 4½”, and 10″. If your holes are at different locations, order 600-6292 instead.
- Chip number verification is mandatory. The chip number for this board is MQ2KUR1A. Locate the chip sticker near the center of your existing board and confirm the number before ordering.
- Metal control box systems only. This board is designed for Marquis spas with a metal control box enclosure. Do not install in plastic Balboa enclosures.
- This board is for Marquis spas through approximately 2006. If your spa is outside this production range, a different board may be required.
- Retrofit option available. If this board is unavailable or you are upgrading an aging system, the Gecko in.ye-5 is a confirmed retrofit replacement. The topside footprint is the same size. Contact Parts4Tubs for guidance.