Hello All!
My spa will no longer heat, and I'm in the process of troubleshooting to determine the cause. It is a ~15 year old Tiger River Spa - Siberian Model L.
The last time I used the spa both jets were running, and the breaker suddenly tripped and turned everything off. Both jets are operating fine, but it is certainly possible that this trip of the breaker was related to the heat going out.
I've opened the control panel and begun troubleshooting:
• Hi Limit light is green
• Heater light is red, so it should be calling for heat
• I checked voltage across the outputs of the relays for the heater, and voltage is the expected 240vac (it is calling for heat)
• The circulation pump is running
The heater on my spa is 4kw (16.6A) at 240v
Infinity electrical heaters
Model: IHH-4000-NHCW
Part no: 6758
I also removed the heater leads from the control board, and attempted to test the resistance across them.
It always showed as an open circuit. I assume this leaves two options:
1) The heating element has failed (and/or wiring within the heater has failed)
2) There is circuitry for high limit reset and/or built-in pressure switch within the heater itself that may have failed
Is anyone familiar with this heating unit that can provide background on its internal functionality/circuitry? What would you recommend as my next steps in determining the cause of the issue?
If it is the heater element that has failed, which unit would you recommend for the replacement?
The IHH-4000-NHCW-6758 is no longer made.
C3564-2 heater is one option to replace it, but it appears to be relatively expensive at around $260 (and heating elements are not necessarily replaceable).
Does anyone have a recommendation on a replacement heat (being able to replace the heating element independently
would be a plus)?
Does anyone know if it is possible to use PEX plugs on the spa heater lines so that I can replace the heater without fully draining the spa? Its supposed to have 3/4" barb fittings, so I assume I can plug with 3/4" pex plugs…
Thanks in advance for any help or advice. Stay safe out there.
Kyle
My spa will no longer heat, and I'm in the process of troubleshooting to determine the cause. It is a ~15 year old Tiger River Spa - Siberian Model L.
The last time I used the spa both jets were running, and the breaker suddenly tripped and turned everything off. Both jets are operating fine, but it is certainly possible that this trip of the breaker was related to the heat going out.
I've opened the control panel and begun troubleshooting:
• Hi Limit light is green
• Heater light is red, so it should be calling for heat
• I checked voltage across the outputs of the relays for the heater, and voltage is the expected 240vac (it is calling for heat)
• The circulation pump is running
The heater on my spa is 4kw (16.6A) at 240v
Infinity electrical heaters
Model: IHH-4000-NHCW
Part no: 6758
I also removed the heater leads from the control board, and attempted to test the resistance across them.
It always showed as an open circuit. I assume this leaves two options:
1) The heating element has failed (and/or wiring within the heater has failed)
2) There is circuitry for high limit reset and/or built-in pressure switch within the heater itself that may have failed
Is anyone familiar with this heating unit that can provide background on its internal functionality/circuitry? What would you recommend as my next steps in determining the cause of the issue?
If it is the heater element that has failed, which unit would you recommend for the replacement?
The IHH-4000-NHCW-6758 is no longer made.
C3564-2 heater is one option to replace it, but it appears to be relatively expensive at around $260 (and heating elements are not necessarily replaceable).
Does anyone have a recommendation on a replacement heat (being able to replace the heating element independently
would be a plus)?
Does anyone know if it is possible to use PEX plugs on the spa heater lines so that I can replace the heater without fully draining the spa? Its supposed to have 3/4" barb fittings, so I assume I can plug with 3/4" pex plugs…
Thanks in advance for any help or advice. Stay safe out there.
Kyle
