Defective Pressure Sensor/switch (Most Common) The purpose of the pressure switch is to ensure that water is flowing through the unit before it allows the heater to turn on. The pool pump must be ON and your filter clean for the switch to close and allow voltage to pass through. Test the voltage reading on the pressure switch with a multimeter.

AquaCal ECS0275 / STK0127 Water Temperature Sensor replacement Kit, For Tropical Heat Pump Heater T115 and All other Models. *** PART # STK0127 is being replaced by PART # ECS0275. - Use 11/32″ or 3/8″ drill bit to tap into water inlet line. - Snug the hose clamp around the sensor. - CAUTION: Over tightening the hose clamp will break

8. eSeasongear AquaCal ECS0275 Water Temperature Sensor, STK0127. Features : ECS0275 wroks for all AquaCal Heat Pump Heaters; AR-PRO offers the perfect replacement of 520272 air/water/solar temperature sensor with 20-feet cable for less cost from the OEM yet is made of premium, heavy duty material that increases the life cycle by 50%.

AquaCal ECS6105 6105D WATER TEMPERATURE / DEFROST SENSOR 10K OHMS *** This is the sensor included in the Kit STK0021 and STK0127. AquaCal Pool Heater Heat Pump Parts - 6105 STK 0021 0127 AquaCal ECS6105 SENSOR,THERMOSTAT, 10 6105D SERVICE PART Old AquaCal ECP0163 Defrost Sensor 10K, Coil Clip-On

AquaCal ECS6105 6105D WATER TEMPERATURE / DEFROST SENSOR 10K OHMS *** This is the sensor included in the Kit STK0021 and STK0127. AquaCal Pool Heater Heat Pump Parts - 6105 STK 0021 0127 AquaCal ECS6105 SENSOR,THERMOSTAT, 10 6105D SERVICE PART Old AquaCal ECP0163 Defrost Sensor 10K, Coil Clip-On

This item: eSeasongear AquaCal ECS6105 Water Temperature Replacement Sensor, 6105D. $39.93. In Stock. Sold by eSeasonGear and ships from Amazon Fulfillment.

AquaCal ECS0275 / STK0127 Water Temperature Sensor replacement Kit, For Tropical Heat Pump Heater T115 and All other Models *** PART # STK0127 is being replaced by PART # ECS0275 – Use 11/32″ or 3/8″ drill bit to tap into water inlet line. –

Find many great new & used options and get the best deals for AquaCal ECS6105 / 6105D WATER TEMPERATURE / DEFROST SENSOR 10K OHMS Pool Heater at the best online prices at Free shipping for many products!

Temperature Sensor. About this item. This fits your . Make sure this fitsby entering your model number. ECS0275 wroks for all AquaCal Heat Pump Heaters. The old part number is STK0127.

17 AquaCal STK0021 WATER TEMPERATURE / DEFROST SENSOR 10K OHMS Pool Home & Garden Yard, Garden & Outdoor Living Pools & Spas Home & Garden Yard, Garden & Outdoor Living

AquaCal ® has been the leading swimming pool heat pump manufacturer since 1981, offering a full range of units to meet any heating need. AquaCal ® can maintain anything from small