⚡ Gecko® in.ye-5 Circuit Board — 33-0045A-K — HydroQuip EasyPak EP2000 / EP3000 Y Series

Genuine Gecko® replacement PCB for HydroQuip EasyPak EP2000 and EP3000 Y Series spa control systems.

⚠️ IMPORTANT — PLEASE READ BEFORE ORDERING

• This is a Gecko® / HydroQuip board — not a Balboa board. The 33-0045A-K is the genuine Gecko in.ye-5 Y Series PCB for HydroQuip EasyPak EP2000 (manufactured after June 2018) and EasyPak EP3000 (manufactured after June 2020) control systems. Confirm your existing system before ordering.
• Version 1 vs Version 2 — check connector P66 before installing. The board ships in two versions. The location of connector P66 on the board determines which version you have. Version 1 boards are only compatible with Gecko in.Therm heaters. Version 2 boards work with in.Therm heaters or with any standard pressure or flow switch — without any modification to the board. Check your existing control system documentation to confirm which version is required.
• Circ Pump and Ozone must be the same voltage. If both are used simultaneously, they must be wired to the same voltage AND the AMP Splitter Harness (PN 9920-401369) is required.
• Compatible with ECO-3 in.Link Digital topsides. This board requires a compatible Gecko Y Series topside keypad. See the compatibility section for confirmed models.
• Non-returnable. Circuit boards cannot be resold to another owner as new once purchased. Confirm compatibility before ordering. Damage from incorrect installation is also not covered under warranty.

🔌 Product Overview

The Gecko® in.ye-5 circuit board (part number 33-0045A-K) is the genuine OEM replacement PCB for HydroQuip EasyPak EP2000 (after June 2018) and EasyPak EP3000 (after June 2020) Y Series hot tub control systems. It is manufactured by Gecko Alliance (Aeware) and is the heart of the in.ye-5 control platform.

The in.ye-5 features 5 configurable relay outputs designed for entry level to mid-range hot tubs. It supports a primary 2-speed pump, a secondary 2-speed pump or blower, an additional 1-speed pump or blower output, an optional circulation pump, ozonator, and a 12V spa light. Both 120V and 240V configurations are supported, making this board versatile for convertible and dedicated systems.

The HydroQuip system model for this board is CS6P52Y.

🌟 Key Features

✅ Genuine Gecko® / Aeware OEM PCB — factory board for HydroQuip EasyPak EP2000 and EP3000 Y Series systems
✅ Part Number: 33-0045A-K (also listed as 33-0045A)
✅ HydroQuip System Model: CS6P52Y
✅ 5 configurable relay outputs — entry-level to mid-range spa configurations
✅ Pump 1: 2-Speed, 120V/240V
✅ Pump 2 / Blower: 2-Speed pump or blower, 120V/240V
✅ Pump 3 / Blower (additional): 1-Speed pump or blower, 120V/240V
✅ Circulation Pump: 120V/240V
✅ Ozone/UV-C: 120V/240V
✅ Spa Light: 12V DC
✅ Convertible 120V/240V operation
✅ Compatible with ECO-3 in.Link Digital topside keypads
✅ Version 2 boards: compatible with in.Therm heaters OR pressure/flow switches
✅ Smart-Freeze Protection (system-level feature)
✅ 1-year limited manufacturer’s warranty

🔩 Technical Specifications

Specification	Value
Part Number	33-0045A-K (also: 33-0045A)
Board Platform	Gecko in.ye-5 Y Series
HydroQuip System Model	CS6P52Y
Compatible Systems	HydroQuip EasyPak EP2000 (after June 2018); EasyPak EP3000 (after June 2020)
Manufacturer	Gecko Alliance (Aeware)
Relay Outputs	5 configurable
Operating Voltage	Convertible 120V / 240V (60Hz)
Pump 1 (Primary)	2-Speed, 120V/240V
Pump 2 / Blower	2-Speed pump or blower, 120V/240V
Pump 3 / Blower (additional)	1-Speed pump or blower, 120V/240V
Circulation Pump	120V/240V — see voltage note below
Ozone / UV-C	120V/240V — must match Circ Pump voltage if both used
Spa Light	12V DC
Fiber Optic	Not supported
A/V (Stereo)	Not supported
Heater Compatibility	Version 1: in.Therm heaters only; Version 2: in.Therm heaters or pressure/flow switch systems
Compatible Keypad Type	ECO-3 in.Link Digital
Compatible Keypad PNs	HQ0095 (in.k8), 34-0237-K
Board Version Identification	Location of connector P66 on the board — see version note below
Warranty	1-year limited manufacturer’s warranty
Returns	Non-returnable

⚠️ Circ Pump + Ozone voltage note: If both a Circ Pump and an Ozonator are used simultaneously, they must be wired at the same voltage AND require the AMP Splitter Harness (PN 9920-401369), sold separately.

⚠️ Incorrect installation is not covered under warranty. Always verify version, heater compatibility, and keypad compatibility before installation.

🔗 Compatibility Guide

Compatible Control Systems:

System	Date Range	Notes
HydroQuip EasyPak EP2000	After June 2018	Confirm board version
HydroQuip EasyPak EP3000	After June 2020	Confirm board version

Compatible Topside Keypads:

Part Number	Description	Notes
HQ0095 / 34-0250-K	Gecko in.k8, 7″W, 8-Button	ECO-3 in.Link Digital
34-0237-K	Gecko in.k8 variant	ECO-3 in.Link Digital
Gecko in.k450	7-Button, LCD	Y Series compatible
Gecko in.k336	5-Button, 10ft	Y Series compatible
Gecko in.k200, in.k300	Standard Y Series keypads	Y Series compatible
Gecko in.touch 2	Wi-Fi touchscreen	Y Series compatible

Recommended Accessories:

Part Number	Description
59-355-1225	Hi Limit Sensor, Gecko Y Series
59-355-1027	Pressure Switch Harness, HydroQuip, 14″, 3-pin
9920-401369	AMP Splitter Harness (required if using Circ Pump + Ozone together)
60-555-1134	Fuse, Buss AGC Fast Acting, 500mA, 1/4″ x 1-1/4″
60-555-1160	Time Delay Fuse, 30A, Class G
60-555-1194	Time Delay Fuse, 20A, Class G, 600V

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🎛️ Board Version Identification — Critical

The 33-0045A-K is available in two versions. The version is determined by the location of connector P66 on the board:

Version	Heater Compatibility	How to Identify
Version 1	Gecko in.Therm heaters only	P66 connector in Version 1 position
Version 2	in.Therm heaters or any pressure or flow switch — no board modification required	P66 connector in Version 2 position

⚠️ Check the picture on your existing board or consult the HydroQuip CS6P52Y Programming documentation to confirm which version your system requires before installing. If your system uses a standard pressure or flow switch (not an in.Therm heater), you must have a Version 2 board.

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🛠️ Installation Requirements

⚠️ Installation must be performed by a licensed electrician in compliance with NEC and all applicable local codes.

Pre-Installation Checklist:

• [ ] Confirm existing system is HydroQuip EasyPak EP2000 (post-June 2018) or EP3000 (post-June 2020)
• [ ] Confirm board version requirement (Version 1 or Version 2) by checking connector P66 on the existing board
• [ ] Confirm heater type (in.Therm or pressure/flow switch) — determines required version
• [ ] Confirm topside keypad is ECO-3 in.Link Digital compatible
• [ ] Note existing voltage configuration (120V or 240V)
• [ ] If using both Circ Pump and Ozone: confirm AMP Splitter Harness (9920-401369) is on hand
• [ ] Disconnect all power at GFCI breaker or disconnect
• [ ] Allow capacitors to discharge after power-off
• [ ] Photograph all wiring before removal

Electrical Requirements:

Requirement	Specification
Supply Voltage	120V or 240V / 60Hz (confirm from system label)
GFCI	Class A GFCI required — NEC Article 680
Ground & Bonding	Required — NEC Article 680
Dedicated Circuit	Required
Disconnect Box	Within line of sight, at least 5 ft from spa
Wire Type	Copper conductors only

⚠️ Safety Warnings

• ⚠️ ALWAYS disconnect all power before circuit board work
• ⚠️ Licensed electrician installation required; NEC Article 680 compliance mandatory
• ⚠️ GFCI required; grounding and bonding required per NEC Article 680
• ⚠️ Confirm Version 1 or Version 2 before installing — wrong version with wrong heater type will damage equipment
• ⚠️ Damage from incorrect installation is NOT covered under warranty
• ⚠️ Circ Pump and Ozone must be the same voltage if used together — AMP Splitter Harness required (9920-401369)
• ⚠️ Non-returnable — verify compatibility before ordering

❓ Frequently Asked Questions

Q: How do I confirm this board fits my spa? A: Your control system must be a HydroQuip EasyPak EP2000 (manufactured after June 2018) or EasyPak EP3000 (manufactured after June 2020). Check the label on your spa’s equipment compartment or control box for the system model number. Contact Parts4Tubs with your system model and existing board part number if you need help confirming.

Q: What is the difference between Version 1 and Version 2 of this board? A: Version 1 boards are only compatible with Gecko in.Therm smart heaters. Version 2 boards work with in.Therm heaters OR with any standard pressure or flow switch, without any modification to the board. The version is identified by the physical location of connector P66 on the board. Check your existing board or the CS6P52Y programming documentation to determine which version your system requires.

Q: Can I use both a Circ Pump and an Ozonator with this board? A: Yes, but both must be wired at the same voltage, and the AMP Splitter Harness (PN 9920-401369) is required and sold separately. Connecting them at different voltages or without the splitter harness can damage the equipment.

Q: What topside panels work with this board? A: The board is designed for ECO-3 in.Link Digital compatible keypads. Confirmed compatible models include the Gecko in.k8 (HQ0095 / 34-0250-K) and in.k8 variant (34-0237-K). Gecko Y Series keypads including in.k450, in.k336, in.k200, in.k300, and in.touch 2 are also compatible. Contact Parts4Tubs to confirm your existing panel is compatible.

Q: Is this board compatible with my Balboa VS520 or VS510 system? A: No. This is a Gecko/HydroQuip board and is not a plug-in replacement for Balboa VS series systems. If you have a Balboa VS system that has failed, contact Parts4Tubs — we can help identify the correct Balboa or retrofit option.

Q: What warranty is included? A: 1-year limited manufacturer’s warranty. Note that damage from incorrect installation is not covered. Circuit boards are non-returnable.

Q: Where can I find the programming documentation for this system? A: The HydroQuip-Gecko CS6P52Y Programming document is available from HydroQuip. Contact Parts4Tubs for installation support.

✅ Why Choose the Gecko® in.ye-5 (33-0045A-K)

✅ Genuine Gecko® / Aeware OEM PCB — factory-programmed for HydroQuip EasyPak EP2000 and EP3000 systems
✅ 5 configurable relay outputs — flexible configuration for a wide range of spa equipment setups
✅ Convertible 120V/240V — supports both residential service configurations
✅ Up to 3 pump outputs + circ + ozone + light — covers most standard to mid-range spa configurations
✅ Version 2 boards: compatible with in.Therm heaters or pressure/flow switch systems
✅ 1-year limited manufacturer’s warranty

🤝 Why Buy from Parts4Tubs

✅ Fast US shipping
✅ Expert technical advice for Gecko and HydroQuip control systems
✅ Compatibility verification before ordering — including board version and keypad confirmation
✅ Competitive pricing
✅ Compatible accessories available — in.k8 topside (HQ0095), Y Series hi-limit sensor, pressure switch harness
✅ Non-returnable boards — we help confirm compatibility before your order is placed

💡 Summary

The Gecko® in.ye-5 circuit board (33-0045A-K) is the genuine OEM replacement PCB for HydroQuip EasyPak EP2000 (after June 2018) and EasyPak EP3000 (after June 2020) Y Series spa control systems. It provides 5 configurable relay outputs for a 2-speed primary pump, 2-speed secondary pump or blower, 1-speed additional pump or blower, circulation pump, ozonator, and 12V light — all in a convertible 120V/240V platform. Critical: confirm Version 1 vs Version 2 by checking connector P66 location on the board before installation. Version 1 supports in.Therm heaters only; Version 2 supports in.Therm or pressure/flow switch systems. If using both a Circ Pump and an Ozonator, they must be the same voltage and require AMP Splitter Harness 9920-401369. Compatible with ECO-3 in.Link Digital topsides. Non-returnable; 1-year manufacturer’s warranty; damage from incorrect installation not covered.

Finding and identifying a replacement Hot Tub Circuit Board (PCB)

If you are looking to replace a failed PCB on your Hot Tub’s spa pack, then quite often identifying the part that you need can be the hardest thing.

Firstly, you are looking for a model number on the actual circuit board itself. Having the model or serial of your hot tub is not going to help at this point, you need to find the number on the PCB itself.

Now, with certain brands of PCB, the number of the replacement PCB that you need is not going to match identically the one you are replacing. Why is that I hear you ask?

Well, normally, it is an updated version. This means that it might have updated firmware on the PCB or be a later revision. Normally, this means that the part number would be slightly different. This is usually indicated with a “12345678 -x” at the end of that part number where x indicated a firmware revision.

In some cases, there will be some following letters on the part number of the circuit board, “12345678 -x MAS” this can indicate that the PCB was used for an OEM meaning it was produced for a certain hot tub manufacturer and the letters identify the manufacturer.

This means if you source an original PCB, it will not have the letters, but will in most cases work just fine.

It can be confusing I know!

What if you can’t find a model number?

If you can’t find a model number on the PCB itself, then you need to look for a model number on the spa pack. Normally, there is a sticker on the outside of the spa pack that tells you the current ratings and input voltages etc and this will have a model number.

In general, most spa packs in the USA are manufactured by Balboa, Hydro-Quip, ACC or Gecko. I know I am generalising here, but if you have a spa pack that has the brand of your hot tub on, it will be an OEM so the key is identifying who made the original box.

From there, you can normally find an original PCB that you will be able to switch out.

For example, the Balboa VS (value series) is a very popular spa pack that has been used by multiple hot tub manufacturers under their own brand names. Whatever they have called it, strip it back and it is still a Balboa VS.

Visual Inspection

One of the most important things you can do when you are looking for a replacement is to visually inspect the PCB that you have versus the picture online of the replacement you are considering. They need to look the same even if there are the differences in firmware revisions or OEM part numbers, you should be visually replacing a PCB that looks like the one you have.

Configuring a replacement Hot Tub Circuit Board (PCB)

When you get a new PCB, you are more than likely going to need to configure it. Most PCBs have a number of different modes and setups that the can operate in. For this, you will need to manual or spec sheet to guide you.

For things like DIP switches, most of the time you can copy the settings from your original circuit board. You are looking for things like setting the voltage as a lot of PCBs can be configured to run on both 115V and 230V.

You may need to move jumpers or even wires to configure voltages – the key here is that you read the schematic and don’t expect the PCB to just work out of the box – it usually doesn’t.

Troubleshooting a Hot Tub Circuit Board (PCB)

Here are some common things you will see when you replace a PCB on a hot tub.

You press the buttons on the topside control and they don’t control the right parts (pumps or blower etc) – this is a mode configuration thing and you will either need to change some DIP switches on the PCB or an internal or low level programming mode on the topside control. Check the manual for how to do this.

You turn on the hot tub and it trips the breaker – it is not common for a new PCB to fail out of the box (I have not seen one yet!) However, a common mistake is that the voltage has not been set correctly. If it is set for 115V and then you try and turn it on, the current draw will be a lot more (twice) than expected and the breaker will trip.

To check this, unplug all of your kit – heater, pumps, blower and then turn on the PCB. If it trips with nothing plugged in, usually the voltage is incorrectly set and what is happening is that live current is being sent to the ground – because you have 4 wires into the PCB rather than 3. Current on the ground loop causes the trip. Check the settings to make sure it is configures for 230V.

It might not trip until you physically turn on a pump or a blower. As mentioned, if the pack is set to 115V and your pump is meant for 230V, it will draw twice the current at half the voltage and trip your breaker. Check the manual for info on how to set the voltage.