Raypak 106/156 Thermal Cut-Off Fuse Kit | 005899F
Raypak
SKU: RAY005899F
Raypak 005899F Thermal Cut-Off Fuse / Fusible Link (Rollout Safety) – Replacement Kit
The Raypak 005899F is a safety thermal cut-off fuse (fusible link) used on select Raypak pool and spa heaters. It is designed to open the safety circuit permanently if excessive heat conditions occur in the burner/firebox area, helping protect the heater from damage caused by abnormal combustion or flame rollout conditions.
Key Details
- Part Number: 005899F
- Type: Thermal cut-off fuse / fusible link (non-reset)
- Function: Safety shutoff in the rollout/overheat safety circuit
- Common rating listed: 152°C (varies by manufacturing run; verify your existing part markings)
- Typical electrical rating listed: 15A, 250V (verify your existing part markings)
Common Compatible Heater Families
- Commonly listed on select Raypak heater series such as 106A / 156A / 206A / 266A / 336A / 406A (verify by your heater model/serial and parts diagram)
- May also appear on additional Raypak P-R series variants depending on revision (confirm fitment before ordering)
When to Replace
- Heater will not fire and troubleshooting indicates an open thermal fuse/fusible link
- Visible heat damage, discoloration, or brittle/cracked fuse body
- Safety circuit opens after a heat/combustion event and the fuse will not reset
Important Safety Notes
- Do not bypass a thermal cut-off fuse. If it opened, the heater likely experienced an unsafe condition that must be corrected.
- If the new fuse opens again, stop operation and inspect for root causes such as restricted airflow/venting, blocked burners, debris, improper gas pressure, or combustion issues.
Installation Notes
- Shut off power and gas to the heater before service, and allow the unit to cool completely.
- Replace the fuse in the same location and orientation as the original, using the proper mounting hardware and secure electrical connections.
- After replacement, verify normal ignition and stable flame characteristics before leaving the heater in service.
Related Products
- Search: Raypak 005899F
- Search: Raypak Rollout / Safety Switches
- Search: Raypak Pilot Assemblies
- Search: Raypak Igniter / Electrode
- Search: Raypak High Limit Switches
- Search: Raypak Burner Tray / Burner Parts
- Search: Raypak Heater Parts
Installation & Maintenance Tips
- Keep the heater cabinet and combustion air openings clear of leaves, dust, and insects to reduce overheating and rollout risk.
- Inspect venting (where applicable) for obstruction and proper termination clearances.
- Maintain proper water flow and clean filtration—overheating and short-cycling can contribute to repeated safety events.
- If you have repeated nuisance shutdowns, check gas pressure, burner cleanliness, and combustion setup before replacing additional parts.
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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