Raypak Electronic Combination IID Natural Gas Valve | 003900F
Raypak
SKU: 003900F
Raypak 003900F Electronic Combination Gas Valve Kit – Natural Gas (NG) – IID Heaters – 3/4"
The Raypak 003900F is an OEM-style electronic combination gas valve kit for compatible Raypak IID (intermittent electronic ignition) pool and spa heaters that run on natural gas. This valve regulates and controls natural gas flow to the burner system during ignition and operation, helping restore safe, reliable firing when the original gas valve is leaking, sticking, failing to open consistently, or causing intermittent ignition issues.
Key Details
- Part Number: 003900F
- Fuel Type: Natural Gas (NG)
- Ignition Type: IID / electronic ignition (not for millivolt/standing pilot systems)
- Valve Size: 3/4" (commonly referenced as a 3/4" combination gas valve for Raypak IID heaters)
- Function: Controls gas flow for ignition and steady burner operation
- Kit Style: Typically supplied as a kit for direct replacement on listed Raypak families (contents can vary by packaging/revision)
Common Compatible Raypak Heater Families
- Often listed for Raypak IID heater models such as 53A / 53B / 055A / 055B / 105A / 105B / 151 / 153
- Also commonly referenced for Raypak digital IID families such as 206A / 266A / 336A / 406A
- Commonly cross-referenced for Raypak R185 / R265 / R335 / R405 (verify by model/serial and parts diagram)
Common Symptoms This Part Can Fix
- Heater attempts to ignite but fails to light consistently
- Intermittent shutdowns or nuisance ignition lockouts after confirming proper water flow
- Gas valve will not open, opens inconsistently, or sticks
- Visible gas valve leakage or corrosion (replace immediately if a leak is suspected)
Important Fit & Safety Notes
- Natural gas only: This is an NG valve. Do not use it for propane/LP systems.
- IID only: Not intended for millivolt/standing pilot Raypak models.
- Verify before ordering: Match the part number to your heater’s model/serial and correct parts breakdown.
- Gas components are safety-critical: Installation should be performed by a qualified service professional following local codes.
Related Products
- Search: Raypak 003900F
- Search: Raypak Gas Valves
- Search: Raypak Ignition Control Parts
- Search: Raypak IID Pilot Assemblies
- Search: Raypak Flame Sensor / Ignition Parts
- Search: Raypak Pressure Switch
- Search: Raypak High Limit Switch
- Shop Raypak
Installation & Maintenance Tips
- Always shut off gas and power before service, and leak-test all gas connections after installation.
- If ignition issues persist after replacement, confirm proper gas supply pressure, clean burners, correct grounding/bonding, and unobstructed combustion air.
- Keep the heater cabinet area clear of leaves and debris—restricted airflow can cause poor combustion and safety trips.
- Maintain proper water flow and clean filtration; low flow can cause overheating and shutdowns that mimic ignition problems.
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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