Question about Rheem 266K to 399K BTU Swimming Pool Natural Gas Heater ()
Opened pool, turned the pool heater on and blinks SNS, ROL and in top corner the service light blinks.
Any easy solution
FIX THIS! Have the reason identified, and then repair it. If it's an outdoor installation it still could be sooted exchangers, or a downdraft by a wind gust? Then you will need a vent cap, NOT a draft hood. There is a difference.
Sooting is caused by improper gas pressure or not enough Free Air for Proper Combustion! If there is not enough free air coming in from the outside unobstructed, into an equipment room where the heater is installed indoors, you need to have fresh air for proper combustion and ventilation. Otherwise the flame burns dirty, resulting in a very sooted heat exchanger.
Posted on Apr 28, 2015
Rollout switch is open, and sns is a sensor failure. replace rollout switch, clean out vents, inspect heat exchanger. water sensor senses too cold or too hot water
Posted on Mar 10, 2014
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Posted on Jan 02, 2017
This is a roll out switch and is good for one shot. It is a wax switch that opens if the flame comes out the front of the cabanit. Cheap and easy to replace, but and theirs always a but. Something caused the rollout. Could be a down draft wind condition you would fix with a draft hood. Sooted heatexchanger or rat nests inside the cabanit will do this also. A through cleaning would be in order here, and for at least the first time a pro would be in order. You may be able to watch and do this yourself but I would find someone who will let you learn while he does this. Good luck.
Posted on Apr 03, 2010
Thank you for posting your question here on Fixya.com.
Replacing the roll out switch is an easy do-it-yourself repair. Fixing the problem causing the roll out of the burner flames in the first place is a bit more of a pro job. Something is causing to much heat to roll out the the combustion chamber into the control area causing the switch to fail. You will continue to burn the link until the underlying problem is fixed.
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Posted on Jun 01, 2010
SOURCE: service code ROL
This indicates the flame roll out safety switch is bad. This part is usually mounted right above the burner tray. It is a white ceramic piece with two wiring terminals and an external part that looks like a resistor. This part detects flame/heat coming out from the burner tray. When replacing it, be sure to check for blockage at the burner tray, heat exchanger and the flue if vented with duct work. This is a critical safety device so do not bypass it.
Posted on Jun 19, 2010
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.
Posted on Sep 20, 2010
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