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How to replace heat exchanger on raypack pool heater

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  • Raypak Master
  • 7,228 Answers

Pull off top then start taking shields off until you get to exchange then replace

Posted on May 19, 2016

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: My raypack pool heater rp 2100 starts to heat

Check your water pressure switch. There could be a clog or it could be defective. I think Id remove it, turn on your filter pump and blow out some water then replace it. You can check the switch with an ohm meter. Remove the leads from the switch. With the pump on, the switch sould read "short". With the pump off, the switch should read "open".

For your heater to work, you must have fuel (gas or what ever) and you must have water pressure (your circulator pump operating).

Posted on Sep 07, 2009

  • 366 Answers

SOURCE: Just got my pool repaster and need to turn on pump

Rust is coming from the cast iron inlet/outlet header. Make sure your chemistry is balanced. If you winterize your pool, make sure the heater is completely drained. If you have an automatic chlorinator, make sure you have a chemical resistant check valve between the chlorinator and the heater. You can remove the inlet/outlet header and clean it before you start the system up. The copper heat exchanger should not emit any staining substances unless your pH is allowed to drop below 7.2, then you will see copper sulfate stains on your plaster (turquoise color).

Posted on Sep 15, 2009

  • 990 Answers

SOURCE: is it difficult to change the governor in a

It's not that hard if you can get the old plug out. This is located benith the water pipes and is a 2" plug. If you have a cast or bronze header (where the water pipes connect) It's simpley a matter of unscrewing with a pipe wrench and the thermal govenor just pulls out and slips in then put the plug back in. If you have a plastic header you unscrew the plug using a square shaft screwdriver or like pry bar, you can also use a large set of waterpump pliers most people won't have these on hand. The problem comes at this point the plastic will have a tendesy to stick to itself, meaning the threads will stick to the header and may stripp off when you unscrew the plug. If this happens you will need to replace the header. If your pool company abaonded the job this may be the case. If not you may want to take the whole header off and replace it from the back this is harder but safer. Good luck with your project.

Posted on Oct 04, 2009

  • 368 Answers

SOURCE: rp2100 raypack pool heater pilot

Several issues can cause a pilot to go out. The flame must be stable and high enough to prevent a wind gust from blowing it out. There is an adjustment screw on the gas valve that can adjust it up or down. If there is dirt in the orifice it may be a weak flame. In addition, if the thermocouple is worn out it may not provide enough current to keep the pilot pulled in. In addition things can go wrong in the valve that prevents the pilot solenoid from holding in.

I would first look at the flame and see if it seems weak and easy to blow out. Turn it up a little and see if it is harder to blow out. If you are not successful and it still goes out then it is probably something in the thermocouple/pilot valve that is defective.

I hope this helps.

Posted on Sep 06, 2011

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1 Answer

Why is it reading rollout sw open - I have to replace switch?Raypack 156ENC


Atmospheric heaters are equipped with a thermal cut off device to prevent flame roll-out in the event the heat exchanger becomes blocked. This is a single- use type fusible link or thermal fuse that must be replaced when disabled by an over-temperature condition caused by excessive restriction in the heat exchanger flue passage.
Look to see what has blocked the flue.

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1 Answer

What is Raypack Pool Heater Code Vent Field Sw#1


fusible link open replace but check gas pressure first if too low will overheat then clean heat exchange of soot if ok you need a vent stack that one might be in the top

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1 Answer

Raypack 2100 pool heater runs for a couple of minutes then loud banging noise. heater shuts off and error code HL appears


That HL is your high limit shutting the heater down. The banging is the sound of water boiling in the heat exchanger because it is moving too slow. This is almost always the result of the bypass or governor (thermostat) not working properly, so too much water is bypassing the heater. It's not too hard of a fix.

Dec 17, 2013 | Raypak RP2100 DIGITAL POOL HEATER R265

1 Answer

My raypack heater cycles on and off with a big bang each time it tuns on


It may be due to gas "pooling" before it ignites. Check that the pilot assembly is correctly positioned, and the burners and heat exchanger are clear of soot and debris.

Mar 16, 2013 | Raypak Rp2100 Pool & Spa Heater Lonox 407k...

1 Answer

How to repair a Raypack pool heater that displays a ROL fault code?


simply replacing the roll out fuse wont solve your problem. those safeties open from an over temp situation or negative pressure down draft. clean out any dirt and debri from venting, inspect the underside of heat exchanger for build up or soot. ensure you have proper combustion/ventilation air openings if heater is in a shed. if heater is outdoors, Raypack is notorious for getting downdrafts back down the draft hood causing burner flames to come outside the burner box

May 20, 2012 | Raypak Rp2100 Pr406aen 406k Natural Gas...

1 Answer

Raypack pool heater indicates ROL. How do I fix it? There is no red reset button on my heater. Please advise


ROL is a Roll-Out code. There is a one time use thermal switch that is white, oval and ceramic which is located inside the heater cabinet on the left hand side. This switch costs only about $8 and will need to be replaced. Typically these do not fail unless there is a bigger problem with the heater such as incorrect gas supply, incorrect venting, high wind conditions (if outdoor), clogged or dirty heat exchanger, etc. So it is a cheap fix, but make sure you moniter the heater carefully when you replace the switch so that you dont damage the heater. Another common cause of a rollout is sooting, or debris on top of the burner tray.

part number for rollout fuse is 005899F
this can be purchased anywhere at an online pool parts store.

Jun 08, 2011 | Raypak Free Hydraulic Lift Gate Delivery -...

1 Answer

Blows thermal fuse on raypack heater?


If you are talking about the "Roll out sensor" located on the lower left hand side, you have a problem with ventilation..Soot,debris, or possibly a rodent nest on the heat exchanger (Located just under the top cover of the heater). If it is electrical, you may have a bare wire touching the heaters housing (somewhere inside) causing a short. Rodents love to chew the insulation off low voltage wiring.

Oct 08, 2010 | Raypak Rp2100 Pool & Spa Heater Lonox 407k...

1 Answer

I have a Rheem raypack pool and spa heater. I have an error message in the display: "ROL". Can you please describe the issue and possible solutions. Thanks, Stan.


Error Code ROL is "HEAT ROLL-OUT SAFETY SWITCH OPEN". The heater is equipped with a cutoff device to prevent flame roll-out in the event the heat exchanger becomes blocked. This is either a "manual reset", or "Single-use" type fusible link/thermal fuse, that must be replaced or reset after any over temperature conditions have been fixed. Excessive restriction in the heat exchanger flue passage may cause the switch to disable the heater. I don't know your exact model so I'm just generalizing. If you reset or replace the switch, and it trips/burns out again, then you need to address what is causing it. make sure the heater is cleaned out well and no debris is blocking the flue. I fthis doesn't help you can always try calling Raypak Service department at (805) 278-5300.

Sep 20, 2010 | Rheem 266K to 399K BTU Swimming Pool...

1 Answer

The header on a raypack heaater has been replaced due to rotting on old manifold. New one also leaks in same area. Whats up here? Bad header?


The header could be good while maybe the heat exchanger is warped. If this is the case it is due to abrupt temperature changes or a bad burn.
Might as well get a new heater if this is the case, but make sure to get to the root of the problem first so it does no happen again.

Aug 30, 2010 | Raypak Rp2100 Pool & Spa Heater Lonox 407k...

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