Raypak heater

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  • Last Post 24 June 2019
Potter12 posted this 21 June 2019

Just put in a new Raypak NG 336btu heater.  We set the temperature to increase 5-10 degrees and the heater turns on then a few seconds later turns off.  The display says the temperature is at our selected temp and says no demand.  Cleaned the basket and chemicals are good.  What should I do next?

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InyoRob posted this 22 June 2019

That usually happens when there is a bad hi-limit switch. However, that typically occurs in older units. What is the model number of the heater?

Potter12 posted this 22 June 2019

It’s Raypak 336,000 btu NG #014940.

InyoRob posted this 23 June 2019

I've contacted our Raypak representative to get his thoughts. I should get an answer on Monday.

InyoRob posted this 24 June 2019

According to Raypak, the heater could be plumbed backwards. Make sure the water from the pump is going to the inlet and the return is going back to the pool.

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