Sundance Spas




Also retrofits to 1995-1999 6500-301 (obsolete see notes below concerning high limit sensor)
240 Volt 5500 Watts. Original numbers SSE-00-OH-OF
>>> Click Here for the Required Current Version High Limit Sensor <<<
Sundance® Spas does not manufacture many of their items but use what is termed as OEM parts from various manufactures/assemblers. The Smart Heater was originally manufactured and supplied to Sundance® Spas by Therm Products that went out of business in late 2016 (supplied from 2000-2016). The early version had the Sundance® Spas logo printed but then was no longer imprinted after that. Balboa® Water Group, that also makes some of the current parts for Sundance® Spas now manufactures the heater.
IMPORTANT NOTE from Sundance® Spas:
Plastic Smart Heaters (6500-310 240V/5.5 kW, 6500-315 230V/2.7kW, 6500-316 230V/5.5kW) have a slightly smaller dry well. When installing these heatersinto spas manufactured prior to April 2007, you can no longer use the OEM Hi-Limit Sensor. Since it is too large to fit into the new heater’s sensor well. We never recommend forcing a hi-limit sensor into or drilling out a sensor well for any reason since this practice can damage the heater and result in leaks and is not covered under warranty. For this reason, we recommend replacing both the Smart Heater and Hi-Limit sensor (6600-168) as a set. This must be determined by the installer and purchaser if you have the correct one, we cannot determine that. If you are not sure then our recommendation is to purchase a new one (however we cannot determine for you and it is only our recommendation).
DO NOT FORCE, DRILL OR TRY TO MODIFY THE OLD HIGH LIMIT IF IT DOES NOT SLIDE INTO THE DRYWELL ON THE BACK OF THE HEATER. DAMAGE will Result! (There are 2 drywells located on the heater). Any attempted modification to the heater will result in damage and will not be covered under the warranty. If there is any doubt concerning the high limit, we recommend purchasing a new one 6600-168. (located below in the Related Products )
When installing the heater make sure that the heater has water going through it and is primed. The best way to install is to leave the heater disconnected from the electrical until you prime and run the system to make sure there is water flowing through the heater. This may take some time and you need to verify that water is flowing, otherwise if you hook the heater up and there are other issues such as not primed, circ pump not operating, a component issue or not installed correctly, you may dryfire the heater and possibly melt the heater housing or cause a fire. This will destroy the element inside and possibly melt the housing. This is the ONLY way that a heater melts down. THIS IS NOT A WARRANTY ISSUE AND IS NOT COVERED UNDER THE WARRANTY.
The 6500-310 Heater is returnable for 90 days warranty exchange only! Note the above issue of dryfire or leakage is not covered!
NOTE: The heater is sold only as a complete unit (housing, O-ring, heater element, etc.). There are no individual pieces available from Sundanc®e Spas. Do not attempt to take the heater apart, there are no replacable parts it is sold as a complete unit. This Heater comes with the 6000-093 High Limit Disc. This heater DOES NOT come with the High Limit Sensor 6600-168. The High Limit Sensor is a bullet style sensor that slides into a drywell at the bottom of the heater.
Sundance® Spas 1995-1999: Replaces the 6500-301 Heater used from 1995-1999 on 800/850 Series. If you have the old style vertical heater 6500-301, you will need to replace the High limit sensor 6600-168 when changing out the heater. They mount up to the same holes on the equipment can. Sorry there are no installation instructions.
Use in the following Sundance® Spas:
All 2000-2004 Sundance® Spas 850 Series Models: Maxxus®, Optima®, Cameo, Majesta, Altamar®, Marin®, Capri®
All 2005 Sundance® Spas 850/880 Series Models: Maxxus®, Optima®, Cameo, Majesta, Altamar®, Marin®, Capri®
All 2006-2015 Sundance® Spas 880 Series Models: Maxxus®, Optima®, Cameo, Majesta, Altamar®, Marin®, Capri®, Aspen®
Note: For spas built between 01/2000 to 06/2000
When first introduced for a short period of time in 2000 (prior to June 12), they contained a small pcboard in the back end of the heater. After June the pcboard was no longer used. The board is no longer available and is not to be hooked up.
Troubleshooting your Heater:
Spa Heaters are the last thing that comes on and is reliant upon all sensors and pressure/flow switches, fuses, pumps and relays working. Heater elements either work or don't work, there is no inbetween, so if you are getting some heat then the issue is probably elsewhere.
Voltage testing to heater: When testing the heater make sure that you have the proper voltage (240 Volts for most heaters) by measuring across the L1 and L2 wires from the Circuit Board to the Heater at the Heater terminals, at the same time, measuring from L1 or L2 to ground does not give a proper reading. Very Important: DO NOT measure by placing your probe on L1 or L2 and the other probe on Ground, you will get a 120 Volt reading which is not correct.
Continuity Test or Ohms test: Turn off the power to the spa and with your probe set to a continuity check, probe the 2 heater terminals at the same time. One probe on one terminal, and the other on the other terminal. Using an Ohm meter, on its lowest setting, measure the resistance between the 2 heater terminals. The typical range is 9-12 Ohms. Note that depending on the heater KW a <25 ohms is acceptable. Another test: With your Ohm meter set to the highest setting, probe one of the heater element terminals and the other probe to the housing (Metal) or Ground. You should get an infinite reading indicating no continuity to ground.
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Sundance Spas




Also retrofits to 1995-1999 6500-301 (obsolete see notes below concerning high limit sensor)
240 Volt 5500 Watts. Original numbers SSE-00-OH-OF
>>> Click Here for the Required Current Version High Limit Sensor <<<
Sundance® Spas does not manufacture many of their items but use what is termed as OEM parts from various manufactures/assemblers. The Smart Heater was originally manufactured and supplied to Sundance® Spas by Therm Products that went out of business in late 2016 (supplied from 2000-2016). The early version had the Sundance® Spas logo printed but then was no longer imprinted after that. Balboa® Water Group, that also makes some of the current parts for Sundance® Spas now manufactures the heater.
IMPORTANT NOTE from Sundance® Spas:
Plastic Smart Heaters (6500-310 240V/5.5 kW, 6500-315 230V/2.7kW, 6500-316 230V/5.5kW) have a slightly smaller dry well. When installing these heatersinto spas manufactured prior to April 2007, you can no longer use the OEM Hi-Limit Sensor. Since it is too large to fit into the new heater’s sensor well. We never recommend forcing a hi-limit sensor into or drilling out a sensor well for any reason since this practice can damage the heater and result in leaks and is not covered under warranty. For this reason, we recommend replacing both the Smart Heater and Hi-Limit sensor (6600-168) as a set. This must be determined by the installer and purchaser if you have the correct one, we cannot determine that. If you are not sure then our recommendation is to purchase a new one (however we cannot determine for you and it is only our recommendation).
DO NOT FORCE, DRILL OR TRY TO MODIFY THE OLD HIGH LIMIT IF IT DOES NOT SLIDE INTO THE DRYWELL ON THE BACK OF THE HEATER. DAMAGE will Result! (There are 2 drywells located on the heater). Any attempted modification to the heater will result in damage and will not be covered under the warranty. If there is any doubt concerning the high limit, we recommend purchasing a new one 6600-168. (located below in the Related Products )
When installing the heater make sure that the heater has water going through it and is primed. The best way to install is to leave the heater disconnected from the electrical until you prime and run the system to make sure there is water flowing through the heater. This may take some time and you need to verify that water is flowing, otherwise if you hook the heater up and there are other issues such as not primed, circ pump not operating, a component issue or not installed correctly, you may dryfire the heater and possibly melt the heater housing or cause a fire. This will destroy the element inside and possibly melt the housing. This is the ONLY way that a heater melts down. THIS IS NOT A WARRANTY ISSUE AND IS NOT COVERED UNDER THE WARRANTY.
The 6500-310 Heater is returnable for 90 days warranty exchange only! Note the above issue of dryfire or leakage is not covered!
NOTE: The heater is sold only as a complete unit (housing, O-ring, heater element, etc.). There are no individual pieces available from Sundanc®e Spas. Do not attempt to take the heater apart, there are no replacable parts it is sold as a complete unit. This Heater comes with the 6000-093 High Limit Disc. This heater DOES NOT come with the High Limit Sensor 6600-168. The High Limit Sensor is a bullet style sensor that slides into a drywell at the bottom of the heater.
Sundance® Spas 1995-1999: Replaces the 6500-301 Heater used from 1995-1999 on 800/850 Series. If you have the old style vertical heater 6500-301, you will need to replace the High limit sensor 6600-168 when changing out the heater. They mount up to the same holes on the equipment can. Sorry there are no installation instructions.
Use in the following Sundance® Spas:
All 2000-2004 Sundance® Spas 850 Series Models: Maxxus®, Optima®, Cameo, Majesta, Altamar®, Marin®, Capri®
All 2005 Sundance® Spas 850/880 Series Models: Maxxus®, Optima®, Cameo, Majesta, Altamar®, Marin®, Capri®
All 2006-2015 Sundance® Spas 880 Series Models: Maxxus®, Optima®, Cameo, Majesta, Altamar®, Marin®, Capri®, Aspen®
Note: For spas built between 01/2000 to 06/2000
When first introduced for a short period of time in 2000 (prior to June 12), they contained a small pcboard in the back end of the heater. After June the pcboard was no longer used. The board is no longer available and is not to be hooked up.
Troubleshooting your Heater:
Spa Heaters are the last thing that comes on and is reliant upon all sensors and pressure/flow switches, fuses, pumps and relays working. Heater elements either work or don't work, there is no inbetween, so if you are getting some heat then the issue is probably elsewhere.
Voltage testing to heater: When testing the heater make sure that you have the proper voltage (240 Volts for most heaters) by measuring across the L1 and L2 wires from the Circuit Board to the Heater at the Heater terminals, at the same time, measuring from L1 or L2 to ground does not give a proper reading. Very Important: DO NOT measure by placing your probe on L1 or L2 and the other probe on Ground, you will get a 120 Volt reading which is not correct.
Continuity Test or Ohms test: Turn off the power to the spa and with your probe set to a continuity check, probe the 2 heater terminals at the same time. One probe on one terminal, and the other on the other terminal. Using an Ohm meter, on its lowest setting, measure the resistance between the 2 heater terminals. The typical range is 9-12 Ohms. Note that depending on the heater KW a <25 ohms is acceptable. Another test: With your Ohm meter set to the highest setting, probe one of the heater element terminals and the other probe to the housing (Metal) or Ground. You should get an infinite reading indicating no continuity to ground.