Question about Jandy Air Energy Heat Pump - 115,000 Btus - Chiller Model

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Spa heater is not firing up and heating

The spa was heating up, and then not heating up. Now we can't get it to heat up. It shows on the remote that it is switching on, but doesn't fire up. We switched everything off on the remote and it is still showing the pool heater as on, but when I go down to the heater the pool heater mode has not been selected. Don't know what to do?

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  • bernierudy Jul 31, 2010

    thanks. I am a lay person and have no idea how to do anything you suggested it is too complicated, but I appreciate your response and I will call in a professional to deal with it.



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Please check whether there are any disconnected wires on your Jandy heater. Make sure that the fan is working and the thermistor is not disconnected. Check the following diagram---

Jandy heater exploded diagram

If the thermistor is fine then please check the expansion valve, whether it is blocked or kinked. Also check the wiring on the terminal box. If this is fine there might be an issue with the limit switch and you might need to get it replaced. Please post back for any further assistance. If you are satisfied please do accept the solution.


Posted on Jul 31, 2010


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