20 Most Recent Raypak 266K BTU Digital Residential Natural Heater Questions & Answers

It depends where water is pouring from, there are several parts that thread into the manifold of your heater, one of those could be loose or broken, or you could have a hole in one of your heat exchangers

check continuity on secondary side of transformer....if you get an open loop then replace the transformer

Good question. Did you ever get an answer? if so, please pass on!

Sounds like you had insufficient water flow through the heater causing the water to boil inside the heat ex-changer. The Hi-Limits should have turned it off almost instantly. There is an internal by-pass, almost like a thermostat in a car radiator that could have been stuck. I would need to know if this was a one time thing or it happens everytime you fire the heater.

This is a good one? I would call the Raypak technical support number and they should be able to help you. I hope this helps.

Please vote on this answer. Thank you.

The error codes and buzzing sound you are experiencing with your Raypak RP2100 heater indicate potential issues with the ignition and flame sensing components. Here are some troubleshooting steps you can take: 1. Check Gas Supply: Ensure that there is an adequate supply of gas to the heater. Make sure the gas valve is fully open and that there are no obstructions or leaks in the gas line. 2. Inspect Ignition System: The CFH (Call For Heat) and SPK (Spark Ignition) codes suggest that the heater is having trouble igniting. Inspect the ignition system components, including the spark electrode, ignition control module, and wiring connections. Clean any debris or corrosion that may be affecting the spark ignition. 3. Check Flame Sensor: The buzzing sound you hear could be related to the flame sensing system. The heater may not sense the presence of a flame, causing it to shut down. Inspect the flame sensor for any buildup of soot, debris, or corrosion. Clean the flame sensor using a soft cloth or a non-abrasive brush. 4. Verify Proper Ventilation: Ensure that the heater's venting system is clear of any blockages. Blocked vents can lead to incomplete combustion and affect the heater's ignition process. 5. Consult the Owner's Manual: Refer to the owner's manual for your specific model of the Raypak RP2100 heater. It may provide additional troubleshooting steps and error code explanations that are specific to your unit. 6. Seek Professional Assistance: If the issue persists or you are unable to resolve it on your own, it's recommended to contact a professional technician who is experienced with Raypak heaters. They will have the expertise to diagnose and repair any complex issues with the ignition system. Remember, dealing with gas appliances can be dangerous. If you are not experienced with working on gas heaters, it is best to contact a qualified professional to ensure proper troubleshooting and repairs.

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.

Hi, Please be careful when dealing with products using gas. Double check that the area around where ignition occurs does not have air blocked off as low oxygen would stop fire from occurring. You can also check fuel level of machine. Thank you.

check gas pressure if ok when goes out possible overheating and shutting off

Check the circuit breakers in the main house box. It may have tripped due to an overload.

sensor failure possible chemistry out of balance header leaking possible overheating check gas pressure also for blocked burner tube