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Anonymous Posted on May 30, 2011

I HAVE A RAYPAK MODEL PR405B-EN HEATER. WHERE ARE THE SENSOR LOCATED? IT WILL NOT WORK AND SAY FILTERS HAVE TO BE CLEANED AND SENSORS CHECKED.

5 Related Answers

Anonymous

  • 139 Answers
  • Posted on Jun 20, 2009

SOURCE: I get SNS Error on my Raypak Digital pool heater display . . .

refers to flame sensor in combustion chamber

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Anonymous

  • 91 Answers
  • Posted on Aug 22, 2009

SOURCE: My raypak heater is not working I have power but

Here is the link for the manual for your boiler.

http://www.raypak.com/uploads/6000.59R.pdf

SNS Sensor failure, Water temp. below 36°F
or above 110°F - The water temperature sensor has failed or a wire is broken. (page 35)

john224

John Prohaska

  • 1378 Answers
  • Posted on Aug 31, 2009

SOURCE: How do you remove the Pressure Switch and the

The pressure switch is threaded in place. Turn it counter clockwise. The probe is held in place with either a threaded cap or is shimmed in. Unthread if capped or simply pull gently if shimmed.

Anonymous

  • 1 Answer
  • Posted on Sep 09, 2009

SOURCE: I have a Raypak pool heater the pilot will lite but the unit will

My Rapak gas pool heater burner will not ignite. I changed the flame sensor and then the main gas valve (on a recommendation of a heating contracter) and after spending almost $300 on parts, I may have not needed, it still will not ignite. The water temp has been around 80 using the solar cover but now with the air temp in the 50's at night and only in the 70's in the day the water is a brisk 70 degrees. We would like run the heater now, so we can use the pool for a bit longer this fall.
Any ideas? Some people told me there is a valve that senses the proper amount of water is flowing around the boiler so it doesn't burn up, is this possiblely the problem that the valve is not opening?
Joe Snyder, Toledo, Ohio

Anonymous

  • 990 Answers
  • Posted on Nov 28, 2009

SOURCE: I have a Raypak model 153 pool heater. The heater

For some reason your heater is not recognising the flame when it goes on. The biggest reason for this will be small spider webs in the burner orfaces. These are on the main gas manifold where it connects to the burners. You can get a small wire and bend it to go in these orfaces but the first time you do this it will probally be easer to pull the tray and remove the orfaces from the gas line. Good luck, I hope this helps.

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Related Questions:

0helpful
2answers

I have a Raypak 399L and the LCD screen shows Spa Set 100F. Under that it says sensor failure. It wont start up

It sounds like there may be a problem with the temperature sensor on your Raypak 399L spa heater. The "sensor failure" message indicates that the heater is not able to detect the temperature of the water in the spa. This can prevent the heater from starting up and operating properly.
Here are a few things you can try to troubleshoot the issue:
  1. Check the wiring: Make sure all of the wiring is securely connected and there are no loose wires or damaged connections.
  2. Check the temperature sensor: The temperature sensor is typically located in the heater itself. Make sure it is securely fastened and there are no visible signs of damage.
  3. Test the temperature sensor: Some models of the Raypak 399L have a diagnostic feature that allows you to test the temperature sensor. Consult your owner's manual or a service manual for instructions on how to do this.
  4. Replace the temperature sensor: If the temperature sensor appears to be damaged or is not functioning properly, you may need to replace it. This will typically require the help of a qualified service technician.
I hope this information is helpful. If you have any further questions or need additional assistance, don't hesitate to ask.
0helpful
1answer

I have a RP 2100 Raypak Pool Heater Model number C-R185-EN installed about 1996 and used very little through out the years the front service light is on-- red --the back circuit board fault shows a sensor...

The part number for the thermistor for your heater is 005299B, officially called the temperature sensor IID it is also refered to a temp sensor or temp sensor kit.

John
0helpful
1answer

Heater fires up and is hot but does not heat the water. Raypak Versa bronze

This unit must have adequate water flow and apparently needs to be checked for proper operation.

Consider the following:

The unit as manufactured is equipped with:
  • pressure switch - likely stuck in the on condition, or been has been bypassed
  • Thermostat - Needs to be checked to insure it is properly working and calibrated.
  • Hi-limit switches - need to be checked to insure they are working and not bypassed.
  • flame sensor - prevents flame from leaving the firebox and damaging control area. (if equipped)
  • Flow Governor - controls water flow through the heat exchanger to prevent over pressure.
If the pressure switch is working properly, a blockage after the heater, would create pressure, but not enough flow. Check for a closed valve or obstruction in the plumbing.

If the problem is a clogged filter, and the filter is located before the heater, then the pressure switch is NOT working correctly and needs to be replaced or adjusted to factory settings. Remove the filter cartridge and check for flow.

Bottom line is:

No flow and no pressure, - heater should not come on.
No flow, but pressure, heater would come on and overheat, tripping hi-limit.
Good flow, heater would come on and spa would heat.
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