Aprilaire · Dehumidifier error code

E7Float switch open

Cross-checked Power off, standard tools

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Related diagnostic guides

Guide · Dehumidifier

Bucket full light (or P1/P2/Eb) stays on with an empty bucket

The bucket switch logic depends on a float and a small switch or magnet. A misseated or warped bucket, a float stuck with slime, or a failed float switch causes a false full signal. On units drained by hose, a loose hose connection can leak water into the bucket.

5 steps ~25 mineasy

Guide · Dehumidifier

Dehumidifier error codes: general approach (sensor, bucket, pump)

Most portable dehumidifiers share the same code groups: sensor faults (E1/E2/EH), bucket (P1/FL), pump (E5/P2) and refrigeration protection (E3/EC). Power-cycle and basic checks fix many; sensor faults need a part.

4 steps ~30 mineasy

More Aprilaire dehumidifier codes

Aprilaire · Dehumidifier

Internal humidity/temperature sensor failure

Cross-checked

Aprilaire · Dehumidifier

High refrigeration pressure / temperature

Cross-checked High-voltage / caution

Aprilaire · Dehumidifier

Wall control (Model 76) communication lost

Cross-checked

Aprilaire · Dehumidifier

Insufficient capacity

Cross-checked High-voltage / caution

Aprilaire · Dehumidifier

E5 / E6

Thermistor failure (high temp E5 / low temp E6)

Cross-checked

Aprilaire · Dehumidifier

Inlet air out of range

Cross-checked