Pentair 71017 150F high limit switch with safety shutoffPentair 150F High Limit with Safety Shutoff, 71017 In stock$4699
Pentair 71017 150F high limit switch with safety shutoff
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Pentair 150F High Limit with Safety Shutoff, 71017

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$4699
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Quick overview

  • Genuine Pentair Part 71017, the factory high limit switch, not a generic thermal cutout.
  • 150F trip point Opens at 150F to shut the heater down before water temperature runs away.
  • Safety shutoff The switch that stops the burner when flow drops or the heat exchanger overheats.
  • MiniMax Plus 150 to 400 Listed for the Pentair MiniMax Plus heater range.
  • MiniMax above ground Also listed for the MiniMax AG 75, 100 and 100SC heaters.
  • A common no-fire cause A tripped or failed high limit is one of the first things to check when a heater will not light.
Full description and specifications ↓

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Product details

The Pentair 71017 is the 150F high limit switch with safety shutoff fitted to MiniMax pool heaters. It is listed for the MiniMax Plus range from 150 through 400, and for the MiniMax above ground heaters 75, 100 and 100SC.

What it does

The high limit is the heater safety that watches heat exchanger temperature and cuts the burner at 150F. It is what stands between a heater with poor flow and a damaged exchanger, so it is not a part to bypass or jumper out to get a season out of a heater.

Before you replace it

A high limit that keeps tripping is usually reporting a real problem rather than failing on its own. Low flow from a dirty filter, a closed valve, a failing pump or a partly blocked exchanger will all trip it. Check those first, and if the switch itself is open with everything else normal, this is the Pentair replacement.

Specifications
Brand Pentair
Manufacturer part number 71017
UPC 788379696092
Part type Pool heater part
Type High limit switch with safety shutoff
Rating 150F
Fits Pentair MiniMax Plus heaters 150-400
Also fits Pentair MiniMax AG heaters 75, 100 and 100SC
Shipping weight 0.02 lb
Ships Parcel

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Questions and answers

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

Which heaters does it fit?
It is listed for the Pentair MiniMax Plus heaters 150 through 400, and for the MiniMax above ground heaters 75, 100 and 100SC.
What does the high limit do?
It watches heat exchanger temperature and cuts the heater off at 150F. That is the protection against overheating when flow falls off or the heater runs away.
My heater will not fire. Is this the part?
A failed high limit is a common cause, but it is often tripping for a reason. Check flow, the filter and the pump before assuming the switch itself has failed.
Is this a genuine Pentair part?
Yes, Pentair part number 71017.
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