WebOnce the engine gets to operating temperature the thermostat opens and allows water to go to the radiator. The heater sometimes comes directly off the engine block. To test a thermostat, put it in a saucepan and cover it with cold water. Bring the water to the boil. If the thermostat is working, it will open. WebI have a raypak pool heater p-r266a-en-c. It stopped heating am getting the SW Open message. The water flow is excellent. I cleaned the skimmer, pump basket and …

How to Reset the Lockout on a Pool Heater - SFGATE

WebJul 5, 2009 · There are several things you can do if this continues to be a problem even when your system is running normally. 1) Adjust the heater's pressure switch. This is not the best idea, because if you get too close to zero, the heater will continue to … We have seen that the SW open message on your Raypak heater is commonly triggered by issues relating to the pressure switch. That is a problematic pressure … See more crosswindz

Raypak Heater Problem - All Swimming Pools Types - Pool and …

WebJul 2, 2024 · 399k BTU RayPak gas pool Heater service call WebNov 25, 2024 · Fix: Have the owner get a filter replacement/cleaning. Another common water flow issue is an open heater bypass valve. A bypass valve is put in place near the intake to stop water from flowing through the heater when it's not in use. When in bypass, the heater's water flow switch (i.e., the pressure switch) should open, and the heater will not run. WebThe older models have a reset. The newest ones must be replaced. They have made the same change on a lot of furnaces. They really are not even supposed to be reset since the fact that it tripped indicates an issue. Could be related to gas pressure or most likely the fuel/air ratio has to be adjusted. I was going to type this when I posted the ... buildbase accounts contact number