Double-Barrel Titanium Heater w/Sensors for Hot Spring/Watkins No-Fault

Double-Barrel Titanium Heater w/Sensors for Hot Spring/Watkins No-Fault
Double-Barrel Titanium Heater w/Sensors for Hot Spring/Watkins No-Fault
Double-Barrel Titanium Heater w/Sensors for Hot Spring/Watkins No-Fault

Double-Barrel Titanium Heater w/Sensors for Hot Spring/Watkins No-Fault

Regular price $299.95
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Premium Double-Barrel Lo-Flow Heater Assembly by HydroQuip with Titanium element & installed sensors. Replacement for Watkins No-Fault® heater for Hot Spring®,Tiger River®, Limelight spas. PDR auto reset. Included Bleed Tube Extension Kit for installation ease. You cannot buy a better quality spa heater at any price.

  • Titanium extended service heater element - 240V/120V
  • Temperature & Hi-Limit Sensors included - Molex plugs
  • Included: Molex to AMP Plug Cable Adapter Set

Product notes: Molex connectors fit model year 2002 and newer. Included cable Adapter Set converts both Molex connectors to larger AMP style for pre-2002 models (IQ2000) as illustrated. Replaces obsolete No-Fault heaters with on-board pressure switch (a third grey wire). Also replaces trumpet-style Laing Infinity 7211. UL listed.1 year warranty.

Watkins Hot Spring No-Fault Heater Replacement Instructions


Length: 19-5/8”

Water Connection: 3/4” Barbed Fittings

Voltage: 240V/120V

Wattage: (Titanium) 6kW @ 240V - 1.5kW @ 120V -or- 4kW @ 240V - 1kW @ 120V

High Limit: 1/2” Threaded Port with installed sensor

Temp Sensor:  5/8” Threaded Port with installed sensor

Power Cord: Heavy-Duty w/Terminal Connectors

Replaces Part Numbers: 73790, 73791, 76227, 76228, 700332, 10311, 2-00-7031, 46-555-1012, 46-555-1013, IHH-4000-NCHW-6759, NSCV73790, 26-C3160-15,  26-C3160-2S

Warranty: 1 year Limited Warranty

Customer Reviews

Based on 150 reviews
Eric N.
Excellent replacement for Watkins No-Fault!

Simple installation - remove and replace. Anyone should be able to do this themselves if they can operate a screwdriver and a pair of pliers. I was replacing a Watkins No-Fault which has a pressure relief wire that feeds into the mainboard. This is not needed with the new heater but it will not work unless you jump the mainboard connector. Please - don't let this intimidate you. Just cut the old wire from your defective heater, maybe 3-4 inches after the board interface plug. Clear and strip the wires and twist them together - install a wire nut or solder and tape if you like. Plug back into the appropriate receptor and all is go. You cannot get this wrong.

Joseph B.
Lasted eighteen months.

Worked AOK. I’ve replaced the heater in my hot springs jet setter at least two times. This one the heater lasted a year and a half.

PN BX5951A

Lenny S.
Perfect replacement

Complete plug and play. It was a two wire and the original one was a three wire and all I had to do was create a jumper out of one of the plugs from the older heater. Took me 15 minutes to install it.

This was much cheaper than the Watkins unit. Hopefully it will be long lasting.

Ever so slightly longer than the OEM part I replaced (@1/4") so the holes for mounting were off. Not a big deal but the equipment cabinet is also not a great space to be working in. These newer heaters come without the 'onboard pressure switch/third grey wire'(now obsolete) of my original 2012. I didn't see the explanation on the Spadepot site(may have missed it) but you need to clip the molded plug from your old heater leaving an inch or two of wire, strip the red and black wires/twist them together, and reinstall on the circuit board where it originally went to 'jump/bypass/?" something in order for the heater/tub to work.


Super friendly customer service. Had a problem with the payment on the website super nice sales lady took my order on the phone. The heater was a direct fit. Easy to install. Working great.

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