FieldBench
Rheem codes

Rheem

58 / 59

Lockout

Condensate / water

96% drain or water switch.

Walk 58 / 59 in Diagnose

5 plates — walk the one on the cabinet

First check

1 Float and the pan

On Rheem R951T a drain / float code is water until proven otherwise. Pan full? Float stuck? Secondary drain piped? Trap, pump, slope, froze drain. Fix water before 45/57 parts.

Expect: Pan dry after you clear it. Float moves freely.

The rest of the walkthrough is Diagnose.

On the plates

  • Trap, pump, slope, froze drain. Fix water before 45/57 parts.
  • If 58/59 is stored with 45/57, pull the drain first — water makes both pressure switches lie.
  • Trap, pump, slope, ice. Water first, then 45/46/57.

Plates that use 58 / 59