R-Pro › Field cases › Refrigeration systems
Drain Pan Contamination / Blockage
Likely causes
Slime/algae growth from neglect
Check: Disconnect power and remove drain pan
What to do: Disconnect power and remove drain pan → Remove slime and debris (use neutral detergent and brush) → Check and clear drain outlet blockage → Verify tray slope (should tilt toward drain outlet) → Reassemble and run defrost cycle to confirm drainage → Consider adding drain tablets to prevent recurrence
Improper drain pan slope
Check: Remove slime and debris (use neutral detergent and brush)
What to do: Remove slime and debris (use neutral detergent and brush) → Check and clear drain outlet blockage → Verify tray slope (should tilt toward drain outlet) → Reassemble and run defrost cycle to confirm drainage → Consider adding drain tablets to prevent recurrence
Drain outlet blocked by debris
Check: Check and clear drain outlet blockage
What to do: Check and clear drain outlet blockage → Verify tray slope (should tilt toward drain outlet) → Reassemble and run defrost cycle to confirm drainage → Consider adding drain tablets to prevent recurrence
Drain pan is overflowing from slime, scale, or debris. Clean the drain pan.
All 565 cases work offline in R-Pro, with error codes for 62 brands and P-T data for 108 refrigerants.
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