Does not come with 6540-228 Oring (order separately)
Used on:
1. 2005+ 880 Systems
2. 1997-2005 850 Systems. 400,600,600-S,750, 800 and 850 Systems.
3. 1992 Suncoast, 4/96-4/98 Suntub SV/DV Systems.
4. 1997 850 Systems
5. Replaces #6600-138 and 6600-105(not shown).

Location of Temp Sensor: The Temp Sensors are located in the filter compartment on the side. They are unscrewed from the inside of the tub and the wire is fed through a tube into the equipment compartment. Follow the wire to the PC Board. To feed the new sensor, we usually drain the tub below the hole and pull the old sensor out a couple of feet into the tub, cutting the old sensor head off, we tie on the new sensor (connector end) to the old wire and pull the wire through into the equipment compartment.