Description
(replaces the old 74618 as of September 10, 2013)
What is included: New upgraded IQ 2020 heater relay board with jumpers and shortened screws for the front of the IQ2020
When this part is defective:
- There is no power going to the heater, while the red HTR ON LED light is on the main circuit board.
- The circuit board is charred on the front and/or back.
Note: in older control boxes, you may encounter a chip on this new heater relay board that prevents the metal cover from fitting properly, and it may need to be trimmed.
Please note:
For HotSpring spas with the older control panel located in the front (see image below), the combination of #77088 (main board), #77119 (heater relay board), and #73225 (control head) must always be replaced.
