Product Description

Marquis HPSL Circuit Board 600-6250: Restore Power to Your Spa
When your control system fails, your entire spa shuts down. The Marquis HPSL Circuit Board (600-6250) is a genuine replacement board designed to restore full function to your HPSL-equipped Marquis spa, quickly and reliably.
Shop and order at Western Tub and Pool.
Product Overview
- Part Number: 600-6250
- Condition: New
- Board Type: Marquis Spa HPSL Circuit Board
- Balboa Cross-Reference Number: 51090
- Chip Number: HPSIR1A
- Manufacturer: Marquis Spas
This board is a direct replacement for the original equipment HPSL control system found in select Marquis spa models. If your spa's control system is unresponsive, throwing error codes, or failing to heat or run jets properly, this circuit board may be exactly what you need.
Compatible Models
The HPSL control system was used across a range of Marquis Spas hot tub models. Compatible models include (but aren't limited to):
- Marquis Spirit
- Marquis Oasis
- Marquis Escape
- Marquis Serenity
- Marquis Haven (Leisure Series)
- Select Coastal Series models
Not sure if this board fits your spa? Hot tub models and control systems can vary by production year, even within the same model name. We strongly recommend confirming compatibility before ordering. Send us your spa's serial number, make, and model (or a photo of your existing board), and our team will confirm the correct part for you.
Cross-Reference Numbers
Looking for this part under a different number? This board may also be listed under:
- Balboa Number: 51090
- Marquis Part Number: 600-6250
Compatible Controls & Associated Parts
This circuit board works alongside the following components in your spa's control system:
- HPSL topside control panels
- Compatible spa heaters
- Temperature sensors
- Spa control boxes and packs
Replacing your circuit board? It's worth inspecting these associated parts at the same time, especially if your spa is older or has not had recent maintenance. A failing sensor or heater can sometimes mimic circuit board issues, so a full check ensures you're not left troubleshooting twice.
Dimensions & Weight
Exact dimensions and shipping weight vary slightly depending on packaging and warehouse origin. For precise measurements ahead of installation or shipping, contact our team at 1-855-248-0777 or email fixmytub@gmail.com, and we'll confirm the specifications for your specific unit.
Frequently Asked Questions
How do I know if I need this circuit board?
Common signs of a failing circuit board include unresponsive controls, error codes on your topside panel, jets or heater not turning on, or a complete loss of power to the spa despite a working breaker. If you're seeing any of these symptoms, this board is a likely fix.
Is this board new or refurbished?
This is a new Marquis HPSL Circuit Board 600-6250, not a refurbished or used unit.
Will this board work with my topside control panel?
This board is designed to work with the HPSL control system's original topside panel. If you've replaced your topside panel previously, or aren't sure what panel you have, send us a photo and we'll confirm compatibility.
What if I can't find my part number?
No problem. Send us a picture of your existing circuit board, along with your spa's make, model, and serial number, and our team will identify the correct replacement for you.
Do you ship internationally?
Yes. As an international e-retailer, we stock this part across multiple regional warehouses. See the note below on regional suffixes for more details on how this may affect your order.
Hard-to-Find Part? We Can Help.
Struggling to track down a discontinued or hard-to-find Marquis spa part? Send us an email at fixmytub@gmail.com. Our team specializes in sourcing exactly the part you need, even for older or less common spa models.
A Note on Regional Suffixes
Western Tub and Pool is an international e-retailer. Because we operate warehouses across multiple regions, the same part may be stocked in more than one location, and this can affect shipping time and cost. To help you identify where your part is coming from, we've added regional suffixes to our part listings:
- U – United States
- C – Canada
- E – Europe
- A – Asia
Please note that some products may appear more than once in our catalogue under different regional suffixes. This is expected and simply reflects warehouse location, not a difference in part quality.
If you know your part number, check it against the listings in our catalogue to confirm the correct regional match. If you're unsure, send us a picture along with your hot tub's make, model, and serial number, and we'll match you to the right part and the right warehouse.
Shop and order at Western Tub and Pool.
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