71586 Pressure Switch

$51.36
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SKU
71586
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71586 Pressure Switch
71586 Pressure Switch 71586 Pressure Switch

The pressure switch is a safety device designed to prevent overheating of the spa heater should a low or no-flow condition exist in the spa.

Mechanical Operation

The pressure switch is located on the flow through heater and measures the water pressure (water pressure changes with the amount of water flow) of the pump. When the pressure switch senses proper water flow, the switch remains closed. However, if the pressure switch senses a low or no-flow condition, the switch will open.

Electrical Operation

The pressure switch is located in the heater circuit. When the switch is closed (proper flow), voltage is transferred to the heater circuit when the control thermostat calls for heat. Activating the relay allows the heater to activate. When the switch is open (low flow), voltage to the heater circuit is interrupted regardless of the state of the control thermostat. This prevents the heater from activating until the low flow condition has been resolved.

WARNING: The pressure switch is a safety device and should never be bypassed or tampered with. Never attempt to calibrate the pressure switch.

The following are some of the common causes of pressure switch tripping;

  • Dirty or clogged filters
  • Clogged heater return
  • Low water level

Removal

  1. Disconnect power to the spa.
  2. Remove the equipment compartment door.
  3. Drain the spa or use the plug system.
  4. Open the drain valve to bleed the water out of the plumbing.
  5. Open the control box lid.
  6. Disconnect the pressure switch connection wires from the pressure switch.
  7. Unscrew the pressure switch from the heater and remove any residual Teflon tape from the threads of the heater body where the pressure switch was connected.
  8. Reverse the removal procedure to install the pressure switch in the control box.
    NOTE: Wrap one piece of Teflon tape (in the opposite direction of the threads) three times around the pressure switch threads before installation. When screwing the new pressure switch into the heater, DO NOT use pliers, grasp the body of the pressure switch and hand tighten only. After you are finished with the installation, switch the jet pump to high speed and check the pressure switch for leaks.

 

71586 Pressure Switch is for the following models:       

 

Make Model Date Range
Hot Spot RLX 1999-2002
Hot Spot SLX 1999-2002
Hot Spot TX 2011-2012
Hot Spot Mallorca 2003-2005
Hot Spot Sorrento 2003-2005
Hot Spot SLXtra 2001-2002
Hot Spot Tobago 2003-2005
Hot Spot Trinidad 2003-2005
Hot Spot RE 1999-2002
Hot Spot SE 1999-2000
Solana SX 2006-2010
Solana TX 2006-2010
Solana RX 2006-2009
Caldera Cumberland 2002-2005
Caldera Olympia 2002-2005
Caldera Oasis 2002-2005
Specifications

 

 

Item Description Part #
1 GFCI 15AMP In-Line 125V 37870
2 Light Receptacle 71612
3 Control Box 72469
4 Thermistor Control 71578
5 Pressure Switch 71586
6 Heater Assy 72651
7 Split Nut Union 2" 33761
* Fuse 25A/300V SC Time Delay 71618
* Fuse 2A 250V 3AG Slo-Blo 34934
* Fuse 750 mA/250V 5 X 20MM Fast-Blo 0965201
* Tailpiece Heater 70905
* O-Ring Tail Piece 34447

 

 

 

Item Description Part #
1a GFCI W/Cover For 115V System 20 AMP 70922
1b Cord GFCI For 115V System 20120
* Breaker GFCI Subpanel Box For 230V System 38661
2 Light Receptacle 71612
3 Control Box 72469
4 Thermostor Control 71578
5 Pressure Switch 71586
6 Heater Assy 72651
7 Split Nut Union 2" 33761
* Fuse 25A/300V SC Time Delay 71618
* Fuse 2A 250V 3AG Slo-Blo 34934
* Fuse 750 mA/250V 5 X 20MM Fast-Blo 0965201
* Tailpiece Heater 70905
* O-Ring Tail Piece 34447

 

 

 

 

Item Decsription Part #
1 GFCI & Cord 90 Degree 15 ft 37870
2 Control Box 71584
3 Light Receptacle 71612
4 Thermistor Control 71578
5 Pressure Switch 71586
6 Heater Assy 71580
7 Split Nut Union 2" 33761
* Control Head 73582
* Control Head (Taupe) 71898
* Control Head (Blue/Grey) 72028
* Receptacle Cover (optional) 71591
* F2 Fuse 25 AMP 300V 71618
* F3 Fuse 2 AMP 250V 34934
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