Pool heater starts and shuts off after about a minute

[jwater]

I’ve got a 13 month old Starite SR200NA and I’m getting the E05 error. It starts and runs for about one minute then shuts off and flashes E05. If i turn the heater off and then on again the same thing happens. I have checked to make sure the intake and exhaust are clean. What else should I be checking?

 

[1poolman1]

I’ve got a 13 month old Starite SR200NA and I’m getting the E05 error. It starts and runs for about one minute then shuts off and flashes E05. If i turn the heater off and then on again the same thing happens. I have checked to make sure the intake and exhaust are clean. What else should I be checking?

Pentair 42002-0024S. That's the stack-flue sensor. Replace it.
These work well:

https://www.amazon.com/s?k=Pentair+42002-0024S.&crid=3OKQ3XZENLKVJ&sprefix=pentair+42002-0024s.%2Caps%2C813&ref=nb_sb_noss_2