Watkins Hot Spring & Tiger River Heater Relay Board w/ Jumpers PN 77119 (old PN 74618 & 73355). Replaces Watkins Part Number: 74618 as of 09/10/2013. Replaces Watkins Old Part Number: 74618 & 73355. It’s upgraded design provides a more efficient method of connecting the heater’s power cord to this board therefore reducing fatigue on the two “beefed up”relays. The black wire from the heater’s power cord now connects into the H1 position on the large gray terminal block. The heater’s white wire (neutral) connects onto its own separate gray terminal block labeled H2. This will reduce stress on the relays and increase their lifespan due to better transfer of voltage. The ground wire connection remains the same. 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. 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. On ORDERS of any TWO (2) Items Totaling. See listings for details. DONT 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)! These are the buyers responsibility. We aim to please our goal is to get you back in hot water, enjoying your spa! The item “Watkins IQ 2020 Heater Relay Board with Jumpers PN 77119 (NEW) PN 74618 (OLD)” is in sale since Friday, October 28, 2016. 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 Prescott, Arizona. This item can be shipped to United States.
