Raypak error RV1

Jugheadd

New member
Jun 12, 2023
4
New Jersey
Hello there, I have a Raypak Pool heater model 406A which isn't starting up anymore. When I turn it on, it doesn't show the temperature but just displays "RV1 000". This isn't listed as an error code in the manual and I'm guessing RV1 just stands for the firmware version. Any ideas on what to do and how to diagnose this ?
 
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