Raypak 135 Degree Surface Mount Auto Reset Thermostat | 006725F
Raypak
SKU: 006725F
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.
Questions about returns? View our return policy.
Hours Of Operation:
Monday - Friday: 7:00 am to 5:00 pm Phoenix Time
Saturday: 8:00 am to 2:00 pm
Sunday: Closed
- We do not ship on Saturday or Sunday.
- Orders totaling more than $300 will require signature confirmation upon delivery.
- We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
- Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
- Expedited shipping options are available at checkout.
Return Policy:
- Products that are received damaged will receive a refund in store credit.
- Most products are eligible for return within 30 days of receipt, except where noted below.
- To initiate a return, please complete an RMA form prior to sending your item back.
- Original shipping costs are non-refundable and will be deducted from the return credit.
- Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
- Some returns will be charged an automatic 15% restocking fee.
- We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
- Please complete the return form to receive your RMA number and return shipping label.
- Chemical products are not eligible for return under any circumstances.
- The Pentair Colorsync 618031 is not eligible for return.
- Pool cleaners are not eligible for return.
- Opened seals and o-rings are not eligible for return.
- Capacitors are not eligible for return.
- Plastic popup tools are not eligible for return.
- Automation components and circuit boards are not eligible for return.
- If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
- Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.
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