Description
⚙️ HydroQuip® ECO-2+2 Replacement Circuit Board — 33-0024D-K — CS6220 / CS9220 / CS4220 Series
Genuine HydroQuip® ECO-2+2 replacement PCB manufactured by Gecko — for HydroQuip CS and ES 4220, 6220, 6229, and 9220 Series spa control systems.
⚠️ IMPORTANT — PLEASE READ BEFORE ORDERING
- This is the ECO-2+2 — NOT the ECO-2. The ECO-2+2 (33-0024D-K) is specifically for CS/ES 6220 and 9220 Series systems. It is not the same as the ECO-2 (33-0024-R6, for CS6200/9200 series). These boards are not interchangeable — confirm your system model number before ordering.
- The ECO-2+2 supports two dual-speed pumps. This is the key functional distinction from the standard ECO-2, which supports a single primary pump. If your system runs two 2-speed pumps, you need the 33-0024D-K, not the 33-0024-R6.
- Connector type: JST Cable. This board uses a JST cable connection — confirm your system uses JST connectors before ordering.
- If replacing a 33-0024-U board: chip number verification is mandatory. The 33-0024-U is listed as a cross-reference with a required chip number check. Do not assume this board is a direct drop-in for a 33-0024-U without confirming the chip number matches.
- Temperature and hi-limit sensors sold separately. This board does not include sensors.
- Non-returnable. Circuit boards cannot be resold once purchased. Confirm compatibility before ordering. Damage from incorrect installation is not covered under warranty.

