Pentair 471603 flame sensor for MiniMax NT STD pool and spa heatersPentair MiniMax NT STD Heater Flame Sensor, 471603 In stock$3699
Pentair 471603 flame sensor for MiniMax NT STD pool and spa heaters
Shop all Pentair

Pentair MiniMax NT STD Heater Flame Sensor, 471603

Ask a questionMPN 471603
$3699
In stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Genuine Pentair part Factory flame sensor 471603 for the MiniMax NT series.
  • Covers four sizes Fits the MiniMax NT STD 200, 250, 300 and 400 pool and spa heaters.
  • Proves the flame The sensor is how the control knows the burner actually lit, and it shuts the gas if it does not.
  • Standard model only This is the STD version of the MiniMax NT, which is not the same as the other MiniMax variants.
  • Common lockout cause A sooted or cracked flame sensor is one of the first things to check on a heater that fires then drops out.
  • Inexpensive service part Replacing the sensor costs a fraction of chasing the fault through the control board.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Pentair MiniMax NT STD Heater Flame Sensor, 471603, SKU PUR-151-4023. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Pentair MiniMax NT STD Heater Flame Sensor, 471603
Pentair

MiniMax NT STD Heater Flame Sensor, 471603

$3699
Pentair Digital Thermostat Circuit Board (IID), 470179
Pentair

Digital Thermostat Circuit Board (IID), 470179

$17466
Pentair MiniMax Pilot Generator with Clip Q313A, 071515
Pentair

MiniMax Pilot Generator with Clip Q313A, 071515

$10099
Pentair 2" Heat Pump PVC Union, 473381
Pentair

2" Heat Pump PVC Union, 473381

$3499
Pentair Thermister Probe MX NT, 471566Z
Pentair

Thermister Probe MX NT, 471566Z

$5599
Pentair Transformer for MiniMax Plus, ThermaFlo and ThermaFlo Titanium Heat Pump, 473155
Pentair

Transformer for MiniMax Plus, ThermaFlo and ThermaFlo Titanium Heat Pump, 473155

$15699
Pentair Minimax Pressure Switch, 470190Z
Pentair

Minimax Pressure Switch, 470190Z

$9399
Subtotal

Similar products

Other products people compare with this one.

Pentair 471587 115 F hi-limit thermostat for MiniMax NT and MiniMax CH pool heaters Pentair Hi-Limit Thermostat, 115 F, for MiniMax NT and MiniMax CH Pool Heaters, 471587$4699 Pentair 155187 double insulated toggle switch Pentair Double Insulated Toggle Switch, 155187$3099 Pentair 71017 150F high limit switch with safety shutoff Pentair 150F High Limit with Safety Shutoff, 71017$4899 Pentair 471420 plastic main manifold bottom cap for MiniMax NT heaters Pentair Plastic Main Manifold Bottom Cap for MiniMax NT Heaters, 471420$1299 Pentair 473605 pressure switch for MiniMax pool heaters Pentair Pressure Switch for MiniMax Heaters, 473605$7999 Pentair MiniMax Pilot Assembly Propane LP IID | 471205 Pentair MiniMax Pilot Assembly Propane LP IID | 471205$10999 Pentair Ignition Control Module Minimax | 472150 Pentair Ignition Control Module Minimax | 472150$23399 Pentair MiniMax DDTC Control Circuit Board Assembly | 472100 Pentair MiniMax DDTC Control Circuit Board Assembly | 472100$46099 Pentair Minimax Heat Exchanger Less Heads 200kBTU | 075628 Pentair Minimax Heat Exchanger Less Heads 200kBTU | 075628$60199 Pentair 70951 tube seal gasket for MiniMax pool heaters Pentair Tube Seal Gasket, 70951$799
Pentair 460799Z igniter kit for NT Low NOx heaters Pentair Igniter Kit NT Low NOx TSI, 460799Z$13699

Product details

The Pentair 471603 is the flame sensor for MiniMax NT STD pool and spa heaters in the 200, 250, 300 and 400 sizes. It is the genuine Pentair replacement part.

What the sensor does

When the heater calls for heat, the control opens the gas and tries to light the burner. The flame sensor is what tells it whether that worked. If no flame signal comes back within the trial period, the control closes the gas and locks out. That safety logic is also why a sensor that has sooted up, corroded or cracked produces the classic symptom of a heater that fires for a few seconds and then quits.

Before you order

Confirm the model designation on the heater rating plate. This part is listed for the MiniMax NT STD, and the MiniMax range includes other versions with different parts. Once the sensor is in, it is worth checking the ground path as well, since flame sensing depends on a clean ground and a poor one mimics a failed sensor.

Specifications
Brand Pentair
Manufacturer part number 471603
UPC 788379603663
Type Flame sensor
Fits Pentair MiniMax NT STD pool and spa heaters 200, 250, 300, 400
Shipping weight 1 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

From Pentair

Your trusted source for all things pool. Pentair

Pentair equipment

Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001 Pentair MasterTemp 400 Natural Gas Pool Heater, EC-462028 Pentair Clean & Clear Plus 420 sq ft Cartridge Pool Filter, EC-160301 Pentair IntelliConnect Control & Monitoring System with Wi-Fi, EC-523317
Shop Pentair equipment

Genuine Pentair parts

Pentair Genuine OEM Seal Kit for WhisperFlo and IntelliFlo Pool Pumps, 356198 Pentair Genuine OEM High Flow Manual Air Relief Valve, 98209800 Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400 Pentair Genuine OEM MasterTemp/Max-E-Therm 6-Button Control Board Kit, 461105Z
Shop Pentair parts
Pool lighting: a backyard pool and spa lit in blue and green at nightPool water treatment: three people floating on rings in clear blue water, seen from abovePool cleaners: a toddler in flower sunglasses laughing in a yellow ring, held by her mother
Pentair makes pumps, filters, heaters, salt chlorinators, cleaners, lighting and automation for pools and spas.Shop all Pentair

Customer reviews

More from Pentair

Pentair SuperFlo VS EC-342001 1.5 HP variable speed pool pump, front view Pentair SuperFlo VS 1.5 HP Variable Speed Pool Pump, EC-342001$1,48900 Pentair SuperFlo EC-348190 single speed pool pump, 1 HP, 115/230V Pentair SuperFlo 1 HP Single Speed Pool Pump, 115/230V, EC-348190$74800 Pentair WhisperFlo VS EC-011533 2.6 THP variable speed pool pump, top view Pentair WhisperFlo VS 2.6 THP Variable Speed Pool Pump, 115/208-230V, EC-011533$1,79900 Pentair 262506 HiFlow 1.5 in. six way clamp style multiport valve Pentair Genuine OEM HiFlow Valve 1.5 in. 6-Way Clamp Style, 262506$20999 Pentair EC-520556 IntelliChlor 110/220V power center Pentair 110/220V IntelliChlor Salt Chlorine Generator Power Center, EC-520556$79900 Web Price Pentair 523769 IntelliChlor Plus and LT replacement sensor board Pentair IntelliChlor Plus and LT Replacement Sensor Board, 523769$40499 Pentair 350305S 3.2 kW 10 pole variable speed motor for IntelliFloXF and IntelliFlo 2 VST pumps Pentair 3.2 kW IntelliFloXF VSF, VSF, VS+SVRS, i1, i2 Motor, 350305S$78199 Pentair 523735-EC IntelliChlor Plus40 salt chlorine generator cell Pentair IntelliChlor Plus40 Salt Chlorine Generator Replacement Cell, 40,000 Gallons, 523735-EC$1,81900 Web Price Pentair Rainbow 320 in-line chlorinator R171096, front view Pentair Rainbow 320 In-Line Chlorinator, R171096$14999 Pentair 190003 tank clamp kit with tension control for Clean and Clear Plus, FNS Plus and Quad DE filters Pentair Genuine OEM Clamp Kit with Tension Control, 190003$31099
Pentair IntelliChlor LT25 salt chlorine generator cell 523747-EC Pentair IntelliChlor LT25 Salt Chlorine Generator Cell, 25,000 Gallons, 523747-EC$1,15699 Pentair IntelliFlo VS+SVRS variable speed pool pump, EC-011057 Pentair IntelliFlo VS+SVRS Variable Speed Pool Pump, EC-011057$2,39900 Pentair 170145 cartridge pack for Sta-Rite System 3 S7M120, inner and outer cartridges Sta-Rite 170145 System 3 S7M120 Large and Small Cartridge Set, 25021-0200S and 25022-0201S$47999 Pentair 261055 SM-20-3 2 in. side mount multiport valve kit, front view Pentair 2 in. Multiport Valve Kit for Side Mount Sand Filters, SM-20-3, 261055$30899 Pentair 523770 IntelliChlor Plus replacement controller (HMI), black Pentair IntelliChlor Plus Controller Replacement (HMI), Black, 523770$39599 Pentair 261152 SM20-2 2 in. side mount multiport valve kit for DE filters Pentair 2" Valve Kit Multiport, Side Mount DE Filters SM20-2, 261152$30799 Pentair 357149 WhisperFlo and IntelliFlo volute housing replacement kit, front view Pentair WhisperFlo and IntelliFlo Volute Housing Replacement Kit, 357149$29699 Pentair MicroBrite Color LED pool light EC-620425, 12 volt, 14 watt, with 100 ft cord Pentair MicroBrite Color LED Pool Light 12 Volt, 14 Watt with 100' Cord, EC-620425$61900 Pentair 59023400 FNS Plus 48 sq ft complete DE grid assembly Pentair Genuine OEM FNS Plus Element Assembly Complete, 48 Sq Ft, 59023400$40599 Pentair Amerlite EC-602128 500W 120V inground pool light with stainless steel facering Pentair Amerlite Pool Light for Inground Pools with Stainless Steel Facering, 500W 120V 50' Cord, EC-602128$43900 Web Price

Questions and answers

What people ask about this product, answered by our pool techs.

Which heaters does this fit?
Pentair MiniMax NT STD pool and spa heaters in the 200, 250, 300 and 400 sizes.
Does it fit other MiniMax models?
This part is listed for the MiniMax NT STD. Check the model designation on your heater plate, since the MiniMax family includes versions this sensor is not listed for.
What does a flame sensor do?
It confirms that the burner has actually lit. If the control does not see a flame signal within its trial period, it shuts the gas off, which is why a dirty or failed sensor causes a heater to light and then immediately lock out.
Is it a genuine Pentair part?
Yes. It is Pentair part number 471603.
Ask your own question