Jacuzzi RapidHeat In-Line Heater U395000 [ Bathtubs and Whirlpools, Logo

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Posted on May 30, 2010

Rapid Heat Inline Heater doesn't work

Our rapid heat inline heater U394000 does not always come on and when it does it shuts off after a couple minutes and the reset button doesn't reset it.

2 Related Answers

Anonymous

  • 125 Answers
  • Posted on Feb 24, 2009

SOURCE: Rapid Heat Bath Heater - indicator light on but not heating water

Bathtub heaters will not produce the heat out a the jets like you would feel coming out of a return jet in a swimming pool.
Bathtub heaters will ONLY maintain whatever temperature water you put in there. they only heat 1-2 degrees an hour. that is for a 1500 watt heater. Many heaters today are only 650 watt or perhaps 700 watt.

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Anonymous

  • 2 Answers
  • Posted on Apr 15, 2011

SOURCE: I have an older Jacuzzi

I have the same problem. I talked to Jacuzzi technical support and they said that they don't sell a product that will retrofit (they make the couplings a custom size to prevent this.) It's really a drag since I really don't want to install a whole new tub just to maintain water temperature. I haven't given up so if you found a solution please post.

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I have an older Jacuzzi with 4 corner spa jets. There is no inline heater in it. Since it takes about 180 gallons of water to fill it I would like to add an inline heater so that the heat can be maintained...

I have the same problem. I talked to Jacuzzi technical support and they said that they don't sell a product that will retrofit (they make the couplings a custom size to prevent this.) It's really a drag since I really don't want to install a whole new tub just to maintain water temperature. I haven't given up so if you found a solution please post.
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My heater keeps shutting down. Just put fuel in. Lights and runs about 5 seconds

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heatman101

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Rapid Heat Bath Heater - indicator light on but not heating water

Bathtub heaters will not produce the heat out a the jets like you would feel coming out of a return jet in a swimming pool.
Bathtub heaters will ONLY maintain whatever temperature water you put in there. they only heat 1-2 degrees an hour. that is for a 1500 watt heater. Many heaters today are only 650 watt or perhaps 700 watt.
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Orifice clogs to Aprilaire 600

http://www.aprilaire.com/themes/aa/en/manuals/600a.pdf look at page thirteen in this manual there is allready a inline filter on the unit. hope this helps
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