Replaces the 74618 as of 9-10-2013. What is included: Upgraded IQ 2020 Heater Relay Board w/ Jumpers & Shortened Screws for the front cover of the IQ2020. This is for a Single Item. 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. Clear Spa Bromo Boost 2 Ounce 6 Packets HTCPCSSO002Z-6. Dimension One Spa Floor Drain Cover - Gray DIM01510-231G.
Clear Spa Bromo Boost 2 Ounce Single Packet HTCPCSSO002Z. Dimension One Spa Floor Drain Cover - White DIM01510-231. The item "Watkins Spa Hot Spring Control Board IQ 2020 Heater Relay Board 2001-2009 Models" is in sale since Monday, July 15, 2019.This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs". The seller is "diypartscenter" and is located in Gilbert, Arizona. This item can be shipped worldwide.