Pentair 475985 ETI 400 gas shut off switch 150F replacement kitPentair ETI 400 Gas Shut Off Switch 150F Replacement Kit, 475985 In stock$6599
Pentair 475985 ETI 400 gas shut off switch 150F replacement kit
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Pentair ETI 400 Gas Shut Off Switch 150F Replacement Kit, 475985

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$6599
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Quick overview

  • Genuine Pentair Factory kit 475985, listed for the ETI 400.
  • Rated 150F This is the 150F version, so match the rating on the switch you are taking out.
  • ETI 400 specific Pentair lists it as the AGS 150F replacement for the ETI 400 heater.
  • Safety circuit The gas shut off switch is part of the chain that stops gas flow when the heater runs outside its limits.
  • Supplied as a kit Pentair sells it as a replacement kit rather than as a bare switch.
  • Heater will not fire A failed shut off switch is one of the first things to check when an ETI 400 refuses to light.
Full description and specifications ↓

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Product details

Pentair 475985 is the gas shut off switch replacement kit for the ETI 400 heater, rated at 150F. Pentair also lists it as the ETI 400 AGS 150F replacement.

What it does

The gas shut off switch sits in the heater safety chain. If conditions move outside the range the heater is allowed to run in, the switch opens and gas flow stops. That is a design that fails safe, which means a switch that has failed leaves the heater dead rather than dangerous.

Before you order

Check the rating marked on the switch you are removing. This is the 150F kit, and heater safety switches are built in several ratings. If the heater is not firing, the stack flue sensor, the thermal fuse and the control board are the other ETI 400 parts in the same circuit worth eliminating before you settle on this one.

Specifications
Brand Pentair
Manufacturer part number 475985
UPC 788379878078
Type Gas shut off switch replacement kit
Rating 150F
Fits Pentair ETI 400 heater
Also listed as ETI 400 AGS 150F replacement kit
Shipping weight 0.06 lb
Ships Parcel

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Questions and answers

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

Which heater does this fit?
The Pentair ETI 400. Pentair lists 475985 as the ETI 400 AGS 150F replacement kit.
What does 150F refer to?
The rating of the switch. Check the rating marked on the switch you are removing before you order, since heater safety switches are made in several ratings.
Is this a kit or a single switch?
Pentair supplies it as a replacement kit under part number 475985.
My ETI 400 will not fire. Is this the part?
It is one of the parts to check. The gas shut off switch sits in the safety chain that cuts gas flow, so a failed switch keeps the heater from lighting, but the stack flue sensor, the thermal fuse and the control board are also worth eliminating.
Ask your own question