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Asset Protection and IAQ Solutions
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1-800-533-7533
HI-E DRY 195
Installation, Operation and Maintenance Instructions
10
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7. Bad connection in pump circuit (Fig. 4).
8. Pump float switch or safety switch open (Sec. 5.11).
9. Pump motor defective (Sec. 5.11).
Blower does not run. Compressor runs briefly but cycles on & off.
1. Loose connection in blower circuit (Fig. 4).
2. Obstruction prevents impeller rotation.
3. Defective blower (Sec. 5.5).
Unit removes some water but not as much as expected.
1. Air temperature and/or humidity have dropped.
2. Humidity meter and/or thermometer used are out of calibration.
3. Unit has entered defrost cycle (Sec. 3.3 & 5.10).
4. Air filter dirty (Sec. 4.1).
5. Defective defrost thermostat (Sec. 5.10).
6. Low refrigerant charge (Sec. 5.4).
7. Air leak such as loose cover.
8. Defective compressor (Sec. 5.6).
9. Restrictive ducting (Sec. 2.4).
Pump does not pump water.
1. Hose kinked or plugged.
2. Pump check valve plugged (Sec. 5.11).
3. Bad connection in pump circuit (Fig. 4).
4. Hose disconnected internally.
Evaporator coil frosted continuously, low dehumidifying capacity.
1. Defrost thermostat loose or defective (Sec. 3.3 & 5.10).
2. Low refrigerant charge (Sec. 5.4).
3. Dirty air filters or airflow restricted. (Sec. 4.1).
5.4 Refrigerant Charging
If the refrigerant charge is lost due to service or a leak, a new charge must be accurately weighed in. If any of
the old charge is left in the system, it must be removed before weighing in the new charge. Refer to the unit
nameplate for the correct charge weight and refrigerant type. Add the refrigerant through the low side service
port (See Fig. 5).
