mypros+
Model reference

Aprilaire 800

Microwave

1 document21 error codes12 service modes

Available documentation

Tech Tip

  • Instruction Sheet2 pg
    Covers this model
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Error codes (21)

CodeMeaning
1Max freeze time exceeded2Max harvest time exceeded3Slow water fill4High discharge temperature5Sump temperature sensor failure.7Discharge temperature sensor failure.8Short freeze timeESelf test failed.E1Control error detected on Model 62 ADHC.E2Control error detected on Model 62 ADHC.E3Control error detected on Model 62 ADHC.E4Control error detected on Model 62 ADHC.LBoard lockedR-ONMaximum freeze time exceeded (refrigeration diagnostic light ON steady, not…R1Very long ice harvestR2No harvest of iceR3High discharge temperature detected by controller.W-ONWater valve leaking through rapidly (water diagnostic light ON steady, not…W+RBoth water and refrigeration diagnostic lights ON steady at the same timeW1Water pump will not start during operation.W2Lack of water fill

Service modes (12)

  • Clean Cycle1
  • Clear Diagnostic CodesHold Clean and Harvest buttons simultaneously for 3 seconds.
  • De-Scale Notification Interval Change1. Machine must be in standby (Status Light Off). 2. Hold Off button for 3 seconds, then release…
  • Empty ReservoirHold Clean button for 3 seconds, then release.
  • Last Error Recall1
  • Lock / Unlock ControlHold On button for 3 seconds, keep holding, then press and release Off twice.
  • Program ID Display["1
  • Purge Adjustment Mode["1
  • Purge Level Setting1. Machine must be in standby (Status Light Off). 2. Hold Off button for 3 seconds, then release…
  • Reset ControlPress and release Off, then press and release On.
  • Test Mode (Output Test)1
  • Test/Reset Mode (Model 62 ADHC)["Ensure HVAC fan is running.","Ensure water saddle valve is open and humidifier is on.","Turn the…

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