Description
xMeet the XMK 6600-166 Temperature Sensor, a practical replacement designed for Sundance Spas and Jacuzzi hot tubs. If your display shows erratic temperature readings or watchdog-like messages, this sensor may help restore stable sensing without replacing the entire control board. The curled finger connectors and the included 6540-228 O-ring provide a streamlined seal for reliable operation across many models. Built to endure typical spa use, it aims to minimize downtime during maintenance and keep your water temperature tracking on track as seasons change.
Designed for broad compatibility, the 6600-166 covers a wide range of Sundance and Jacuzzi tubs from early-generation to more recent configurations. This means you can often salvage a failing sensor rather than upgrading the whole system, with fewer parts to juggle during maintenance. While not a guarantee, this replacement can be a practical option when the sensor is the root cause of temperature display quirks or control board misreads.
What you get and how it helps
- Broad model compatibility across Sundance and Jacuzzi spas, including many LX-10/LX-15, 701 and 724 series variants
- Durable curled finger connectors that align with common control boards, reducing wiring hassles during replacement
- 6540-228 O-ring included to help seal the sensor port and minimize leaks
- 12-foot sensor wire length for flexible routing from the sensor location to the control board
The sensor is designed to sit in the filter compartment, with a straightforward path back to the equipment area. The included gasket helps maintain a snug seal, which can contribute to a cleaner installation and steady readings over time. If you’re replacing an older sensor, the longer wire length can simplify routing around existing plumbing and wiring harnesses.
Easy installation tips
- Locate the sensor in the filter compartment, unscrew it from inside the tub, and feed the wire through to the equipment compartment
- Match the new sensor to the PC board connector and pull the wiring through; drain below the installation hole if needed
Why consider this replacement
- Solves common temp display issues that can disrupt normal spa operation
- Offers a cost-saving option compared with full control board replacement when the sensor is the root cause
- Includes hardware designed for durable, long-term use with a secure seal and reliable readings
FAQ
Q: What does this sensor replace and is it compatible with my Sundance or Jacuzzi spa?
A: The 6600-166 replaces older curled finger sensors and fits many Sundance and Jacuzzi models; confirm your control board compatibility before purchasing.
Q: What is included in the package and how long is the wire?
A: Includes the 6600-166 temperature sensor and the 6540-228 O-ring; sensor wire length is 12 feet for flexible routing.
Shipping & Return
xReturn Policy
We offer a 30-day return policy, which means you have 30 days after receiving your item to request a return. For Patio, Lawn & Garden items, returns are only accepted for products that arrive damaged, defective, incorrectly shipped, or in a condition that is the fault of the seller.
To be eligible for a return, your item must be in the same condition that you received it — unused, with all original packaging, tags, manuals, parts, and accessories included. Items that show signs of use, installation, outdoor wear, assembly, or damage caused after delivery cannot be returned.
You will also need your receipt or proof of purchase.
To start a return, contact us at gardencanada.ca@gmail.com
All approved returns must be sent to the following address:
Garden Canada – Returns Department
2601 E 28th St, STE 005
Signal Hill, California
United States
If your return is accepted, you will receive a prepaid return shipping label (when applicable) along with detailed instructions on how and where to send your package.
Items sent back without first requesting a return will not be accepted.
You can always reach us at gardencanada.ca@gmail.com for any return-related questions.
Damages and Issues
Please inspect your order upon delivery and contact us immediately if your item is damaged, defective, incorrect, broken, missing parts, or arrives in poor condition. We will evaluate the issue and make it right.
For seller-caused issues (damaged, defective, incorrect), Garden Canada will cover the return shipping cost.
Exceptions / Non-Returnable Items
The following items cannot be returned:
- Used or installed Patio, Lawn & Garden products
- Items showing signs of outdoor use, wear, dirt, or weather exposure
- Plants, seeds, bulbs, fresh flowers, and other perishable goods
- Products returned without original packaging, parts, manuals, or accessories
- Assembled furniture or products damaged during customer assembly
- Customized or personalized items
- Hazardous materials or flammable liquids
- Sale or clearance items
- Gift cards
If you are unsure about your item’s return eligibility, please contact us before sending it back.
Exchanges
Exchanges are only available for unused items that arrived damaged, defective, or incorrect. The fastest way to receive the item you want is to return the original (if eligible) and place a new order once your return is approved.
European Union 14-Day Cooling-Off Period
If your order is shipped into the European Union, you have 14 days to cancel or return the item for any reason. However, Patio, Lawn & Garden items must still be unused, in original condition, and in their original packaging with all included parts and accessories.
Refunds
Once we receive and inspect your return, we will notify you whether the refund was approved. If approved, your refund will be processed to your original payment method within 10 business days.
Please note that your bank or credit card provider may require additional time to process and post the refund.
If more than 15 business days have passed since your refund was approved, please contact us at gardencanada.ca@gmail.com
ORDER PROCESSING TIME
All orders are processed within 2–3 business days after payment confirmation. Orders placed on weekends or holidays will be processed on the next business day.
If there is any delay in preparing your order, we will notify you promptly by email.
SHIPPING TIME
Garden Canada ships exclusively within Canada across all provinces and territories.
Standard delivery: Total delivery time is approximately 5 business days (2–3 business days processing plus delivery time).
Remote or northern regions: 6–10 business days due to distance, weather conditions, and limited carrier routes.
Deliveries to areas such as Yukon, Northwest Territories, Nunavut, and certain rural communities may take longer because of seasonal and logistical factors.
While we always aim for timely deliveries, once a package is handed over to the carrier, Garden Canada is not responsible for carrier delays, service interruptions, or weather-related disruptions.
SHIPPING CONFIRMATION AND TRACKING
Once your order has shipped, you will receive a shipping confirmation email containing your tracking number and a link to track your shipment.
Tracking details typically become active within 24–48 hours after shipment.
SHIPPING RATES
Shipping within Canada is free on all orders.
Expedited or express delivery options may be available at checkout for an additional fee depending on your location.
ADDRESS ACCURACY
Please ensure your shipping address is complete and accurate before placing your order. Garden Canada is not responsible for delays, lost shipments, or delivery issues caused by incorrect or incomplete address information.
DAMAGED OR LOST PACKAGES
If your order arrives damaged, please contact us immediately at gardencanada.ca@gmail.com with clear photos of the package and its contents. We will review the situation and assist you as quickly as possible.
If your package is marked as “delivered” by the carrier but you have not received it, please first:
- Check with neighbors or building management
- Verify the shipping address used during checkout
- Contact your local delivery office
If the issue remains unresolved, please email us and we will help initiate a carrier inquiry or claim when applicable.
INTERNATIONAL SHIPPING
At this time, Garden Canada ships only within Canada. International shipping options may become available in the future.
CONTACT
If you have any questions regarding shipping, please contact us at: gardencanada.ca@gmail.com
- Choosing a selection results in a full page refresh.
