I have a 330K BTU LP Sta Rite pool heater. It is approximately 10 years old. It has not been working properly and I was looking for some ideas before I buy a new one.
The following is a description of how it is behaving:
Turn on breaker...display reads R-5 (I think a good thing)
Yellow "HEATING" LED flashes
Heater fires, but not very loudly - approximately half as loud as when it operated properly
Heats for a few minutes and "Heating" LED flashes
The heater stops firing and reignites with a loud swoosh sound
I get a faint smell from the exhaust of unburned propane (not sure what the odor is)
This cycle repeats constantly.
Amy ideas to troubleshoot?