The incoming power wires and the black & white wire from the heater are inserted into the gray terminal blocks round holes by prying the gate open using a small screwdriver. Symptoms this part has failed. No power going to the heater even though the red HTR ON L. Light is lit inside the IQ2020 control box. The heater board is charred on the front and/or the backside - See PIC 3 for example Note: In older control boxes, you may encounter that a chip on this new heater relay board prevents the metal guard from seating properly and it may need to be trimmed.Symptoms of this part failing. 1 GFCI trips off when the heater comes on; 2 The heater board is charred on the backside -- look for black or white ash charred area. If present, your relay board is bad. 3 Spa is not heating - no power getting to heater terminals on Relay Board.
DON'T SEE AN ITEM? Subscribers to our store and receive "Private Subscriber Discounts" news-blasts. Let us know if you need product overseas or across borders. We'll see what we can do (no chemicals sales internationally -- only parts, accessories, miscellaneous)!We aim to please - our goal is to get you back in hot water, enjoying your spa! Any questions - message us! This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs". The seller is "spaguys247" and is located in this country: US. This item can be shipped to United States.