How To Program a Jandy JEP-R Variable Speed Pump Controller

In this Article I go over the programming of the Jandy JEP-R Variable-Speed Pump Digital Controller for the Jandy Variable Speed pumps. The JEP-R looks complicated to program but is actually quite easy. The JEP-R overall is a good controller for your Jandy Variable speed (VS) pump.



The JEP-R can hold two schedule speed programs and up to a total of eight different speeds. This is where it can be confusing. You can program only two speeds to come on at set times. For example you might want low speed to run from 7:00am to 1:00pm (eStar speed) and Speed 2 to run form 1:00pm to 3pm. So you can set these specific daily run times in the JEP-R in the first two buttons on the controller.

Buttons 3 and 4 can be programmed for a specific speeds (the speeds on a VS pump are referred to as RPM). But they can only be set for a run duration time, like 2 hours, and button 3 and 4 will need to be manually started by pressing the button. There are also optional speeds 5-8 that can be set and accessed thru the menu – these will also need to be manually started.

So overall your programming should be focused on button 1 (eStar) and button 2 on the controller. There are factory set defaults also for all of the buttons, eStar is set at 1750 RPM and Buttons 2-4 are set at 2750 RPM. In the video I show you how to easily change both factory preset speeds.

The main question I get is what run time and RPM should I set my VS pump to? The answer to that question depends on a lot of factors. How big is the pool and overall flow rates are the main factors. For a larger pool, the pump will need to be set to run longer or at a higher speed. To determine the ideal run time and RPM, installing a flow meter is your best option. I like the FlowVis Flow Meter seen in this video:

FlowVis® Flow Meter - H2flow Review & Overview: http://youtu.be/8WFXje-NWBY

Installing a flow meter will give you the exact gallons per minute (GPM) of water flowing from the skimmer, into the filter and then back into the pool. Without a flow meter you can make an educated guess based on your pool equipment.

As a rule of thumb you want to stay under 3000 RPM as a high speed setting with button “2.” This will maximize your energy savings and most pool cleaners can be run at 2600-2800 RPM. This also includes solar and a salt cell. The only time that you would use a higher RPM would be for a spa spillway or when you are using your spa and want the full effect of the jets (3450 RPM).

Also, you should run your pool in low speed for the majority of the time. So a common set up would be 1750 RPM for 8 hours a day and 2600 RPM for 2-3 hours a day. Again, this all depends on the pool size and the pool flow rate. Here is a video that illustrates this:

Variable Speed Pump RPM, Watts and Run Time EXAMPLES: Featuring Jandy iQPUMP01: https://youtu.be/DlOjwUgv_Yk


So the Jandy JEP-R is an easy to use and a moderately easy to program variable speed controller.
To see a video on how to install the JEP-R:

How to Install a Jandy JEP-R Variable Speed Pump Controller: 




Other Videos in this series:
Jandy iQPUMP01 Smart Phone VS Controller: https://youtu.be/ZAvvAccTBig
Variable Speed Pump RPM, Watts and Run Time EXAMPLES: Featuring Jandy iQPUMP01:https://youtu.be/DlOjwUgv_Yk
Jandy VS FloPro 1.0 HP Pump Installation Part 1: Unboxing & Walk Thru: https://youtu.be/qjr2EB2kBMo
Jandy VS FloPro 1.0 HP Pump Installation Part 2: Plumbing in the pump: https://youtu.be/EvbJVQvmNBohttps://youtu.be/EvbJVQvmNBo
Jandy VS FloPro 1.0 HP Pump Installation Part 3: Wiring the Pump (watching now): https://youtu.be/RpEXyIdDkK0
Variable Speed Pump, money saving benefits: https://youtu.be/7PdZTDadZKI

How a Robotic Pool Cleaner can Maximize your Pool's Energy Savings: https://youtu.be/h89CpLnTAqg

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