This replacement is for all IQ 2020 controllers in all Hot Spring, Limelight, and Tiger River Spas. This product is new as of September 2013, and has improved voltage transfer for spas controllers.
Includes the updated IQ2020 Heater Relay board with jumpers and screws to secure to font cover of the IQ2020.
77119 Heater Relay Board is for the following models:
| Make | Model | Date Range |
| Hot Spring | Grandee | 2001-2008 |
| Hot Spring | Vista | 2004-2008 |
| Hot Spring | Envoy | 2004-2008 |
| Hot Spring | Vanguard | 2001-2008 |
| Hot Spring | Jetsetter | 2001-2008 |
| Hot Spring | Prodigy | 2001-2008 |
| Hot Spring | Sovereign | 2001-2008 |
| Hot Spring | Aria | 2007-2007 |
| Hot Spring | Highlife ILE | 2003 |
| Tiger River | Bengal | 2001-2008 |
| Tiger River | Caspian | 2003-2008 |
| Tiger River | Sumatran | 2001-2008 |
| Caldera | Tahitian | 2002-2008 |
| Caldera | Niagara | 2002-2008 |
| Caldera | Geneva | 2002-2008 |
| Caldera | Hawaiian | 2002-2008 |
| Caldera | Kauai | 2002-2008 |
| Caldera | Moorea | 2006-2008 |
| Caldera | Martinique | 2003-2008 |
| Caldera | Aspire | 2004-2008 |
| Caldera | Elation | 2003-2008 |
| Limelight | Pulse | 2008 |
| Limelight | Flair | 2008 |
| Limelight | Glow | 2008 |
NEW PART NUMBER IS 77119 New style board replaces all older versions
74618 Relay Board is Discontinued. Old Relay Board had Three Relays
(New Version has two) and the connection for the heater wires are the same
1st style board had heater wires connect into a clip connection.
When you install new style board clip off connector tabs on end of heater wires, and connect into h1 and h2 of terminal block.
Click the Videos tab to see a installation video
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