{"product_id":"pentair-476223-ignition-control-module-with-flame-sense-mastertemp-max-e-therm-replaces-42001-0052s-genuine-oem","title":"Pentair 476223 Ignition Control Module with Flame Sense — MasterTemp \u0026 Max-E-Thermostat, Replaces 42001-0052S — Genuine OEM","description":"\u003cp\u003eThe \u003cstrong\u003ePentair 476223 Ignition Control Module\u003c\/strong\u003e is the genuine OEM ignition control with flame sense for \u003cstrong\u003eMasterTemp\u003c\/strong\u003e and \u003cstrong\u003eSta-Rite Max-E-Therm\u003c\/strong\u003e pool and spa heaters. It supersedes part \u003cstrong\u003e42001-0052S\u003c\/strong\u003e. The module is microprocessor-based, runs on 24 VAC from the heater transformer, and continuously monitors and controls burner operation.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Pentair OEM:\u003c\/strong\u003e Direct-fit replacement, factory-aligned — no reconfiguration needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlame sense included:\u003c\/strong\u003e Monitors combustion continuously through the heater cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicroprocessor controlled:\u003c\/strong\u003e Operates on 24 VAC, safely managing the full ignition sequence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes 42001-0052S:\u003c\/strong\u003e The current part number for that legacy module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Fits the full MasterTemp and Max-E-Therm ranges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather-tolerant build:\u003c\/strong\u003e Handles the heat, moisture and outdoor exposure typical of heater installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 476223\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupersedes:\u003c\/strong\u003e 42001-0052S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference:\u003c\/strong\u003e Fenwal 35-662944-013, 6290-120, 604012, 47-102-1307\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Ignition control module with flame sense\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply:\u003c\/strong\u003e 24 VAC from heater transformer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e Approx. 5.5\" L x 4.25\" W x 1.625\" D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 788379888237\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Pentair (Genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhich Heaters It Fits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMasterTemp natural gas:\u003c\/strong\u003e 175NA (460792), 200NA (460730), 250NA (460732), 250HD (460806), 300NA (460734), 400NA (460736), 400HD (460805)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMasterTemp propane:\u003c\/strong\u003e 175LP (460793), 200LP (460731), 250LP (460733), 300LP (460735), 400LP (460737)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMasterTemp 125 above ground:\u003c\/strong\u003e 125NA (461058, 461059), 125LP (461060, 461061)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSta-Rite Max-E-Therm:\u003c\/strong\u003e SR200NA, SR200HD, SR200LP, SR333NA, SR333HD, SR333LP, SR400NA, SR400HD, SR400LP\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eIs this the same as 42001-0052S?\u003c\/h3\u003e\n\u003cp\u003eYes. The 476223 is the current part number and replaces the discontinued 42001-0052S.\u003c\/p\u003e\n\n\u003ch3\u003eWhat symptoms point to a failed ignition control module?\u003c\/h3\u003e\n\u003cp\u003eIgnition failure codes, flame-sense errors, or a burner that will not start consistently — once gas supply, the ignitor and the flame sensor probe have been checked.\u003c\/p\u003e\n\n\u003ch3\u003eShould I replace anything alongside it?\u003c\/h3\u003e\n\u003cp\u003eWorth inspecting the ignitor and flame sensor probe at the same time, since a fault in either can present the same way.\u003c\/p\u003e\n\n\u003ch3\u003eCan I install it myself?\u003c\/h3\u003e\n\u003cp\u003eThis should be fitted by a qualified heater technician. It controls gas ignition and flame safety, and correct wiring is essential.\u003c\/p\u003e\n\n\u003ch3\u003eCan this part be returned?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eNo.\u003c\/strong\u003e For safety reasons, ignition control modules cannot be returned once installed. Please confirm your heater model and serial number before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ps4u-faq\"\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eHow do I size a pool heater?\u003c\/h3\u003e\n\u003cp\u003eHeater sizing follows pool surface area, the temperature rise you want and how exposed the pool is to wind. A larger BTU rating heats faster and cycles less; an undersized heater runs continuously and still struggles on cold nights. Gas heaters also need a gas line and meter capacity that can supply their rated input.\u003c\/p\u003e\n\u003ch3\u003eWhat is the part number for this heater component?\u003c\/h3\u003e\n\u003cp\u003ePentair lists this heater component under part number 476223. Quote 476223 when you cross-reference against your equipment manual, an existing part, or a parts diagram, so you are comparing the same revision.\u003c\/p\u003e\n\u003ch3\u003eWhat routine maintenance does a pool heater need?\u003c\/h3\u003e\n\u003cp\u003eKeep water chemistry balanced, because low pH and high calcium hardness are the two most common causes of premature heat exchanger failure. Beyond that: keep the cabinet clear of debris, check for rodent nests before each season, and have the burner and gas train inspected periodically.\u003c\/p\u003e\n\u003ch3\u003eHow do I confirm this fits my equipment?\u003c\/h3\u003e\n\u003cp\u003eMatch the part number stamped on the component you are replacing, or look it up in the parts list for your Pentair equipment. If your model or serial number is not named on this page, send it to us before you order and we will confirm the fit.\u003c\/p\u003e\n\u003ch3\u003eIs this the complete heater or a replacement part?\u003c\/h3\u003e\n\u003cp\u003eCheck the title and the specification section above. Heater listings and heater component listings share the same part-number format, so confirm whether you are buying a full appliance or a single serviceable component before ordering.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty on this heater component?\u003c\/h3\u003e\n\u003cp\u003eIt carries the standard Pentair manufacturer warranty. The terms are set by Pentair, and on some equipment the coverage only applies when a licensed professional performs the installation. Keep the receipt and packaging until you have confirmed correct operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52911952134461,"sku":"476223","price":229.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/6741\/8429\/files\/61HodKQ5ghL._AC_SL1500.jpg?v=1787340012","url":"https:\/\/poolsupply4u.com\/products\/pentair-476223-ignition-control-module-with-flame-sense-mastertemp-max-e-therm-replaces-42001-0052s-genuine-oem","provider":"PoolSupply 4U","version":"1.0","type":"link"}