Hot Spring HotSpot Caldera Pressure Switch 73995
- Replacement Pressure Switch for Hot Spring HotSpot, Solana and Caldera Spas.
- Part number 73995
- Official Hot Spring part.
See Delivery Info and T&Cs
The pressure switch is a safety device designed to prevent overheating of the hot tub heater should a low or no-flow condition exist in the spa.
The pressure switch is located in the heater circuit. When the switch is closed (proper flow), voltage is transferred to the heater circuit when the control thermostat calls for heat. Activating the relay allows the heater to activate. When the switch is open (low flow), voltage to the heater circuit is interrupted regardless of the state of the control thermostat. This prevents the heater from activating until the low flow condition has been resolved.
WARNING: The pressure switch is a safety device and should never be bypassed or tampered with. Never attempt to calibrate the pressure switch.
The following are some of the most common causes of pressure switch tripping:
- Dirty filters
- Clogged heater return
- Low water level
This pressure switch fits the following brands/models:
| Make | Model | Date Range |
| Hot Spot | Propel | 2017-Current |
| Hot Spot | Relay | 2010-Current |
| Hot Spot | Rhythm | 2010-Current |
| Hot Spot | Tempo | 2010-Current |
| Hot Spot | SX | 2011-Current |
| Hot Spot | TX | 2011-Current |
| Hot Spot | Mallorca | 2006-2009 |
| Hot Spot | Sorrento | 2006-2009 |
| Hot Spot | La Palma | 2008-2009 |
| Hot Spot | Tobago | 2006-2009 |
| Hot Spot | Trinidad | 2006-2009 |
| Solana | SX | 2006-2010 |
| Solana | TX | 2006-2010 |
| Solana | RX | 2006-2009 |
| Caldera | Palatino | 2010-Current |
| Caldera | Marino | 2010-Current |
| Caldera | Vanto | 2011-Current |
| Caldera | Aventine | 2006-Current |
| Caldera | Cumberland | 2006-2009 |
| Caldera | Olympia | 2006-2009 |
| Caldera | Tarino | 2013-Current |
| Caldera | C 30 | 2006-2009 |
| Caldera | San Gabriel | 2008-2008 |
| Caldera | Oasis | 2006-2009 |
| Caldera | C 45 | 2006-2009 |
Diagnostics
Hot Spring Hot Spot, Solana Or Caldera Spa Not Heating - Lines on Screen (====)
- Lines on the screen signify no or low flow through the heater.
- Check filters are clean and nothing is blocking the flow.
- Check water level is high enough and no air is drawing into the filter.
- If the above does not assist, the pressure switch may be faulty.
