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Frigidaire model FPRH19D7LF1 serial WA31500947 All Refrigerator is not cooling. Temperature reads 33. We placed another thermostat and temp reads 41-48 with placing a bucket of ICE each day . Removed the interior back panel only a few coils had frost less than a quarter of the whole panel. Also vacuumed and dusted the bottom areas of refrigerator. YOUR CHOICES FOR DEVICES ON REFRIGERATORS HAS ONLY ONE MODEL FOR FRIGIDAIRE. PLEASE ALLOW US TO SELECT MY MODEL AS ABOVE.

You said you vacuumed out the lower part where the condenser is? Does the coil look clean? When running is the condenser coil feeling very hot? Is the condenser fan running? Might want to try unplugging it, and spraying a metal safe cleaner on it. Even just some soap and water in a spray bottle. Let sit a few minutes, then carefully rinse it off. Poor cooling like this (limited frost on evap) is typically either lost refrigerant charge, condenser fan not running, or a dirty coil keeping it from condensing properly.