Raypak Pool & Spa - Recent Questions, Troubleshooting & Support

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

Raypak Pool &... | Answered on Dec 23, 2020

Thank you for posting your question here on Fixya.com.

I have never heard of the plug popping out before. The problem is whether it was due to poor thread makeup or a much more serious problem of a stuck UG and water boiling in the exchanger. If no one was present to see or hear the unit as it blew you will need to look deeper for your answer.

Start with boiling some water in a pan then remove it from heat and drop the UG in. It should pop open showing that it is working properly. If it doesn't the UG has failed and likely led to your mishap.

You will need to carefully realign the plug into the header and try to salvage the threads if you can. If you're lucky the plug threads are gone if there is still a problem. If not, the header can be replaced as well but it cost more. A new complete header assembly should come with the plug already installed.

The UG part number is 006719F
The complete header assembly is 006827F

If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at www.arrowpools.net. Positive feedback is appreciated once your problem is solved!


Raypak RP2100... | Answered on Oct 11, 2020

There is a transformer in that unit to convert the high power to probably 24 volts. If it is still working when it is buzzing, the problem is most likely the lamination in the transformer core is loose and vibrating.

Raypak Pool &... | Answered on Sep 12, 2020

Check voltage to the gas valve and make sure it is getting 22-30 bolts when the gas valve opens. Also make sure the regulator is supplying the proper amount of gas per heater specs. Too much gas will make the valve chatter.

Raypak Pool &... | Answered on Aug 25, 2020

That model is obsolete. HP means high pressure, there is a switch on the discharge side of the pump that is tripped and it wont allow the unit to come on.

Raypak Pool &... | Answered on May 28, 2020

I have a 93 crysler lebaron convertible I put a new battery in car and water in the radiator .but as much as we put it in it blows back out but dont no where it gos . A friend of mine messed with the fuel pump relay button .but it still dont start .the oil has a film in it .please I dont no what is wrong

Raypak HEADER... | Answered on May 09, 2020

Heater cool down is very important and needs to be done. A time clock with a firemen switch is how it is normally done. Never run a heater with out water flowing thru it.

Raypak Pool &... | Answered on May 01, 2020

All fine that the thermostat clicks when tuned, However just check the contact for Voltage as the contacts do get burnt at times, thus your element is not getting sufficient voltage

Raypak Pool &... | Answered on May 01, 2020

This is very common with Raypak. What you hear is the way the air flow drafts through the heater. Raypaks typically draft very well. The rise of the heat off the burners draws in fresh air at the bottom and sides of the heater through the louvers and expels out the top.
You need the right mixture of fuel and oxygen for efficient burn and proper draft. A week flame or inefficient fresh air and the heater will not draft properly. A 406 is a very big heater my initial reaction is to check the gas supply. My assumption is the gas line may be undersized, especially if this heater was recently installed in place of a smaller unit. If the gas line is undersized the heater may operate but in time the insides will soot like a chimney and also change the dynamics of the way it drafts. Soot can also be a fire hazard so it is worth having a professional take gas pressure readings.

Raypak Pool &... | Answered on Jun 20, 2019

Not finding what you are looking for?
Raypak Logo

998 questions posted

Ask a Question

Usually answered in minutes!

Top Raypak Pool & Spa Experts

Paul Carew

Level 3 Expert

3527 Answers

Brad Brown

Level 3 Expert

18563 Answers


Level 3 Expert

85239 Answers

Are you a Raypak Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides