Raypak Pool Heater Millivolt Sensor Well | 006805F
Raypak
SKU: RAY006805F
Raypak 006805F Sensor Well (Thermowell) for Millivolt Pool Heaters
The Raypak 006805F is a stainless steel sensor well (thermowell) used on compatible Raypak millivolt-style pool heaters. It threads into the heater header and provides a protected pocket for the temperature sensing probe/capillary, helping ensure accurate temperature feedback while shielding the sensor from direct water flow and turbulence.
Key Details
- Manufacturer: Raypak
- Part Number: 006805F
- Part Type: Sensor well / thermowell
- Material: Stainless steel tube with brass threaded end
- Function: Houses/protects the temperature sensing element in the header for stable, reliable temperature control
Dimensions
- Inside Diameter (ID): 15/32"
- Outside Diameter (OD): 9/16"
- Length: 3-3/8"
Common Heater Compatibility
- Raypak 206A, 266A, 336A, 406A (Digital Atmospheric series)
- Raypak 207A, 267A, 337A, 407A (Digital Low NOx Millivolt series)
Note: Compatibility can vary by heater revision and header type. The most reliable confirmation is matching the part number from your heater’s parts breakdown or comparing the original sensor well dimensions and thread style.
What This Part Does
- Provides a sealed, threaded mounting point in the heater header for the temperature sensor.
- Protects the sensing element from direct water impact, helping improve stability and reduce premature sensor damage.
- Helps maintain accurate heater cycling and temperature regulation when the sensor is properly seated in the well.
When to Replace
- Water seepage/leaking at the sensor well/header connection
- Cracked, corroded, or damaged well tube or threaded end
- Sensor will not seat properly, is loose, or cannot be secured
- Header service where the original well is seized or damaged during removal
Installation Notes
- Shut off gas and power, and allow the heater to cool completely before servicing.
- Relieve system pressure and drain down as needed to prevent water loss when the well is removed.
- Thread the well in carefully to avoid cross-threading the header.
- After installation, confirm the sensor is fully seated in the well and secured per the heater design.
- Restore flow and check for leaks after startup.
Related Products (Aqua Pool Supply)
- Raypak temperature sensor (003346F)
- Raypak header gaskets
- Raypak high limit switches
- Raypak pressure switches
- Raypak heater sensor parts
Maintenance Tip
If you’re troubleshooting temperature issues, inspect the sensor seating and the sensor well opening for scale buildup. Keeping the sensor fully seated and the well clean helps the heater read water temperature accurately and cycle properly.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
Related Products
