Raypak 135 Degree Surface Mount Auto Reset Thermostat | 006725F
Raypak
SKU: RAY006725F
Raypak 006725F 135°F Auto-Reset High Limit Thermostat (Surface Mount) – For Select Raypak Digital Pool & Spa Heaters
The Raypak 006725F is a 135°F auto-reset high limit thermostat used as an overheat safety switch on compatible Raypak pool and spa heaters. It is a surface-mount style limit that helps protect the heater by opening the safety circuit if the sensed temperature reaches its limit, then automatically resetting once temperatures return to a safe range.
Key Features
- Part Number: 006725F
- Type: High limit / safety thermostat
- Temperature Rating: 135°F
- Reset Type: Automatic reset
- Mounting Style: Surface mount (mounts directly to the heater surface/heat exchanger area per model design)
- Electrical Connection: Spade terminals (common quick-connect style)
- Function: Helps shut down the heater on overheat conditions to protect internal components
Common Compatible Heater Models
- Commonly used on select Raypak digital heater families such as R185A, R265A, R335A, R405A (confirm by your heater model and parts diagram)
- May also be listed on select P-R series variants depending on configuration (verify fitment before ordering)
Common Symptoms of a Failing High Limit
- Heater shuts off and will not fire consistently (intermittent safety trips)
- Nuisance shutdowns after the heater runs for a short time
- Corroded terminals or damaged wiring connections at the limit switch
- Overheat-related errors after confirming proper water flow and clean filtration
Installation Notes
- Shut off power to the heater before service.
- Label and remove the wires from the old limit switch, then transfer to the new switch (same terminal locations).
- Mount the new switch securely and ensure good surface contact where applicable.
- If the high limit is tripping repeatedly, inspect the root cause: low water flow, dirty filter, closed valves, bypass issues, scale buildup, or restricted circulation.
Related Products
- Raypak High Limit (135°F) Switches
- Raypak Auto-Reset Thermostats
- Raypak R405A Parts
- Raypak R265A Parts
- Raypak Pressure Switches
- Raypak Unitherm Governor
- Raypak Header Gaskets
- Raypak Heater Parts
Installation & Maintenance Tips
- Keep filters clean and maintain proper water flow—low flow is one of the most common causes of overheat shutdowns.
- Inspect heater wiring connections seasonally; loose or corroded spade terminals can cause intermittent operation.
- Maintain balanced water chemistry to reduce scaling and overheating inside the heat exchanger.
- If the heater cycles off on limit trips after service, confirm valves are fully open and the pump is primed before troubleshooting further.
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.
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