Temp Sensor For Watkins No-Fault Heater

This Hydroquip temperature sensor detects the spa waters temperature and relays that information back to the IQ2020 spa control system. It is easy to install, just screw it into the No Fault Heater Housing (hand tight only) and plug it directly onto the motherboard inside the IQ 2020 control box to communicate with the system.

Details:

• Manufacturer: Hydroquip
• Hydroquip P/N: 34-39530-K
• 4 Pin molex connector (only 2 wires)
• 5/8″ Threads
• Includes O-ring

Important

It is important to replace both the hi-limit and temperature sensors at the same time in order to avoid issues with temperature sensing. If the temperature sensing of a new thermistor differs by more than five degrees from the old one, the system will go into “fault mode” and prevent the heater, jet pump(s), and light from operating. Therefore, when replacing the temperature sensor, it is also necessary to replace the hi-limit sensor as well, and vice versa.