Question about Pool & Spa
Jandy aqualink rs 4
Go into menu then find freeze protect it will ask which auxillaries to be selected select with an x in front then set temp for freeze protect
Posted on Jul 14, 2014
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Posted on Jan 02, 2017
It is most likely not a bad reading on the on the display.
One culprit of a false temp reading could be:
If the temperature sensor is installed after the heater and the circulation pump is clogged or failing, this would allow super heated water to reach the temperature sensor and give you that reading. However, most pool/spa heaters have a high limit switch that would shut down the heater @ 150 degrees F. So this is also unlikely.
The most reasonable answer is to replace the temperature sensor.
If you refer to page 22 in this manual http://www.jandy-downloads.com/pdfs/Allbutton_manual.pdf
you will see that the temperature sensor is installed on terminals 5 and 6.
Trace these wires. They will goto a thermowell (which holds the temperature sensor) either in the pool plumbing, or to a temperature sensor in the heater itself. Temperature sensors when in the heater are located typically above the inlet/outlet header. There will be some disassembling required to access it in this case.
If it is in the heater and you need more help, e-mail me @ firstname.lastname@example.org
Please take the time to give me a positive rating on this post if I have helped.
Posted on Nov 02, 2010
Testimonial: "Thanks for the prompt response. I'm at work now but I will follow your instructions when I get home. I had a feeling that it is a 'bad' sensor. "
There is a freeze guard sensor that is attached to the RS4 system. Over time, these sensors do fail. The "field test" for our technicians is to take the sensor (see picture below) and place the coils in a cup of ice water. The sensor "should" turn the pump on and leave the pump on until the coils are removed from the ice water and warm back up above their setting.
You also need to make sure that the temperature sensors on your panel are reading correctly. Since the Aqualink has air and water temperature sensors, there is a possibility that the temp sensors are incorrectly reading the temperatures and conflicting with your freeze guard. Check your pool water with a standard pool thermometer and match that temperature against your panel reading and then do the same with the air temperature.
More than likely, the freeze guard sensor has failed and needs to be replaced. We see this commonly at the beginning of each year as the temperatures change. Its always a good maintenance item to check your sensor (ideally 1 time a week) once a month with the simple ice water test listed above.
As far as changing these sensors, they are relatively easy to replace. The contacts are 2 wires that plug directly into the RS4 board.
The freeze protection replacement should run you anywhere from $130 - $180 though the MSRP is much higher: Part number:
FREEZE PROTECTION KIT ADJUST (INTERMATIC)
Posted on Dec 09, 2010
6700 REV C is usually the control boards and in rare cases the wiring between the two. Here is a post to troubleshoot http://goo.gl/4Hp7k. It also points to www.fixyourboard.com. Bottom line, don't buy new, get them fixed.
Posted on Mar 01, 2013
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