Aprilaire 1850w, 1830 installation instructions Troubleshooting

Page 25

TROUBLESHOOTING (continued)

TABLE 4 – Diagnostic Codes (continued)

Diagnostic

Code

Failure Mode

Action

Reset

E7

Float Switch Open

1.

Empty the condensate pan..

 

 

 

Self-Correcting

 

 

2.

Check the float switch connection at the control board..

 

 

 

 

 

 

3.

If not using a float switch, verify jumper is between float switch terminals on dehumidifier

 

 

 

 

control board..

 

 

 

 

 

 

4.

If the problem persists, replace the float switch..

 

 

 

 

 

 

 

 

 

 

 

 

E8

Inlet Air Temperature

1.

Verify all ductwork is properly sealed..

 

 

 

Self-Correcting

 

Out of 50°F – 104°F

2.

If no signs of leak points, contact Technical Support..

 

 

 

 

 

or dew point below

 

 

 

 

 

 

 

40°F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E9

Outdoor Temperature

1.

Check the sensor connection at the power board..

 

 

 

Self-Correcting

Outdoor

Resistance

 

 

Sensor Open or

2. Remove the wires from the terminals and measure

Temperature

 

 

 

 

 

 

 

Shorted

 

the resistance.. A short circuit will have a resistance

 

 

 

 

 

 

0°F

84,500 Ohms

 

 

 

 

 

very close to 0 Ohms and an open circuit will have

 

 

 

 

 

 

 

20°F

46,000 Ohms

 

 

 

 

 

a very very high resistance.. The table at right can

 

 

 

 

 

 

 

 

 

 

 

 

40°F

26,000 Ohms

 

 

 

 

 

be used to approximate the resistance based on

 

 

 

 

 

 

 

 

 

 

 

 

outdoor temperature..

60°F

15,500 Ohms

 

 

 

 

3.

If the sensor is not reading correctly, replace the

80°F

9,500 Ohms

 

 

 

 

 

sensor, Part No.. 8052..

 

 

 

 

 

 

 

100°F

6,000 Ohms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents Safety Instructions Installation InstructionsTable of Contents Specifications Standard basement and attic installations fully ducted SET UP Dehumidifier for InstallationCloset installations Crawl space, Sealed Attics or basement installationsTo move the control Control LocationDetach the on-board control by removing the four Minimum Wire Size AWG Hard WiringVoltage Minimum Circuit CapacityWiring Instructions Hard WiringReattach the electrical service panel and side panel Location Considerations Condensate PAN, Condensate Pump and Float Switch Drain InstallationLeveling Required Component Ducting to Hvac System Basement and Attic InstallationsDuctwork Ducting NotesOptional Component Ducting to Hvac System Closet InstallationsOptional Components Ductwork Grilles with 10 Duct CollarsWhole-Home Primary Zone Installation Ducting for TWO Zone InstallationsCrawl SPACE/SEALED Attic Control External ControlWiring to the Hvac System Wiring the Dehumidifier to the Hvac System and Zone DampersOptional W & Y Wiring Wiring to Zone DampersSystem SET-UP & Checkout 90-1854selections ZoneExternal Control DEH W/ACDehumidification Only System SET-UP & CheckoutZoning and/or Ventilation 90-1854energizedSampling will show on the display Crawl Space or Sealed Attic Remote Control Using ModelTWO Zone Primary and Secondary Press the ON/OFF button to turn the dehumidifier control onInstallation & Wiring Intake Hood AWG WireVentilation Installation VentilationVentilation Outdoor Temperature Sensor InstallationVENT-AUTO & VENT-TIMED Dehumidifier can ventilate in four modesDetermine Fresh AIR Delivery Rate Record the required CFMCFM Required CFM DeliveredDisabled screen appears For 3 seconds to accessRepeatedly until the Vent Sequence of Operation Adjusting Ventilation Time After Initial SET UPDehumidifying the Fresh AIR Ventilation with AN External ControlDiagnostic Codes TroubleshootingDiagnostic Codes Troubleshooting Troubleshooting Guide Service Parts 10010759 B2206316A
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