
07-02331B EB80
6
EnviroBoss.
As Needed
Clean pump check valve and basin.
If the unit displays
the message “ER9 PUMP BLOCKED PUMP & HOSE”,
the pump check valve and pump basin may need to be
cleaned. Remove grills and cover as shown in Fig. B.
Remove screws from pump base and lift out pump. Wipe
out pump basin with a damp cloth. Unthread barbed fit-
ting with check valve and rinse fitting and check valve
with clean water. Reinstall barbed fitting into pump. Do
not overtighten. Reinstall pump on base. Reinstall cover
and grills.
Clean coils.
With the cover removed, inspect both coils.
If excessive dust and debris is present, vacuum thor-
oughly and/or clean with coil cleaner.
PUMP PURGE BUTTON
The Control Panel will display the following messages when the Pump Purge Button is pressed.
C O N T R O L P A N E L
M E S S A G E
E X P L A N A T I O N
---
PUMP PURGING XX
Pump is purging with countdown in seconds. Press key again to stop if needed.
SYSTEM MESSAGES
The Control Panel will display the following messages based on system performance and environmental conditions. User
action, if any is required, is indicated in the third column.
C O N T R O L P A N E L
M E S S A G E
E X P L A N A T I O N
U S E R A C T I O N
INITIALIZING
Unit is powering up.
None
FIRMWARE VERSION
XXX
Indicates control board firmware version number.
None
FXXX-XXX
Model number.
None
OFF
Unit has finished powering up and is operating.
None
PLEASE WAIT
COMP. DELAY XX
60s delay before compressor turns on. Allows system
pressure to equalize.
None
UNIT ON XXXX HRS
INLET XXX°F / XX%
First line: indicates total operating hours.
Second line: Toggles between inlet temperature and in-
let RH every 2 seconds.
None
HUMIDISTAT
INLET XXX°F / XX%
First line: indicates unit is in humidistat mode
Second line: Toggles between inlet temperature and in-
let RH every 2 seconds.
None
LOW TEMP
INLET XXX°F/ XX%
Unit shuts off if inlet temp below 45° F. Turns back on
when inlet reaches 50° F.
None
HI TEMP CYCLE
REMAINING XX MIN
Unit overload limit reached. Cool-down initiated.
None
---
DEFROST XX
Unit is defrosting, with countdown in seconds.
None
WAIT FOR
DEFROST XXX
Unit turned off when coil is cold or already in a defrost
cycle. Proceeds to finish cycle or initiate one to clear the
coils of ice before storage.
None
WAIT FOR
UNIT DRYING XXX
Occurs when unit is turned off and coil is not frozen.
Clears the coils of water before storage.
None
CHECK FILTER >
---
Prompt to check filter.
Check filter. Press the > key
to reset
CLEAN COILS >
---
Prompt to clean coils and interior.
Clean coils. Press the > key
to reset