How to find Raypak/Rheem model and serial number on old heater

May 2, 2015
10
Lakeside
Hi all,
The previous owner installed a Rheem (Raypak) pool heater. The cover over the LCD display fell off and the LCD is baked and impossible to read. But I can't find the serial and model numbers. I read online that you have to remove a door, there does not appear to be any door with this unit, just a bunch of phillips head screws. Does anyone know how to access the serial and model numbers?20200703_094041.jpg
 
On my millivolt unit, the entire from panel below the controls pulls off. It is held in place with tension clips so should not require much force and no tools as I recall.
 
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