Pentair Combination Gas Control Valve Kit | 42001-0051S
Pentair
SKU: 42001-0051S
Pentair Combination Gas Control Valve Kit for MasterTemp® & Sta-Rite Max-E-Therm® Heaters | 42001-0051S
The Pentair 42001-0051S is an OEM combination gas control valve kit used in the burner system of select Pentair MasterTemp and Sta-Rite Max-E-Therm pool and spa heaters. This valve assembly regulates and shuts off gas flow to the burner as commanded by the heater controls, supporting safe ignition, stable firing, and proper heater operation.
Key Features
- OEM combination gas valve kit: designed to match the heater’s burner system requirements for correct fit and function.
- Controls gas delivery: opens/closes and regulates gas to the burner based on heater demand and safety inputs.
- Helps restore reliable ignition and heating: common replacement when diagnosing gas valve failure or internal valve issues.
- Service replacement part: intended for heater repairs where the parts diagram specifies 42001-0051S.
Compatibility
- Fits: Pentair MasterTemp pool/spa heaters (model/revision dependent) where the parts list calls for 42001-0051S
- Fits: Sta-Rite Max-E-Therm pool/spa heaters (model/revision dependent) where the parts list calls for 42001-0051S
Important: Always confirm your exact heater model, revision, and fuel type (natural gas vs propane) using the heater data plate and parts diagram before ordering.
Common Symptoms of a Failing Gas Valve
- Heater attempts to ignite but will not light consistently
- Heater lights briefly then shuts down unexpectedly
- Intermittent heating with repeated ignition retries
- Service troubleshooting indicates gas valve malfunction (after confirming gas supply and safety switches)
Installation Notes
- Gas service should be performed by a qualified technician.
- Turn off electrical power and shut off gas supply before opening the heater.
- After replacement, gas connections must be leak-tested and the heater verified for proper ignition and stable operation.
- If ignition problems continue, confirm gas supply pressure, venting, and safety circuits (pressure switch, limit switches, etc.).
Specifications
- Brand: Pentair
- Part Number: 42001-0051S
- Part Type: Combination gas control valve kit (burner system component)
- Application: MasterTemp / Max-E-Therm heater burner system (model dependent)
- Quantity: 1 kit
Related Products
- Search Aqua Pool Supply for 42001-0051S
- Pentair MasterTemp heater parts
- Sta-Rite Max-E-Therm heater parts
- Heater pressure switches
- Heater igniters
- Heater thermistors & temperature sensors
- Heater gaskets & seals
Maintenance Tips
- Keep water flow strong (clean filter and baskets). Low flow can cause nuisance shutdowns that look like burner issues.
- Maintain balanced water chemistry to reduce scale and overheating that can shorten heater component life.
- If the heater is outdoors, keep the cabinet sealed and dry to reduce corrosion on electrical and gas components.
- Have a qualified technician inspect combustion and venting periodically for safe, efficient operation.
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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