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
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
---
PUMP PURGING XX
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
INITIALIZING
FIRMWARE VERSION
XXX
FXXX-XXX
OFF
PLEASE WAIT
COMP. DELAY XX
UNIT ON XXXX HRS
INLET XXX°F / XX%
HUMIDISTAT
INLET XXX°F / XX%
LOW TEMP
INLET XXX°F/ XX%
HI TEMP CYCLE
REMAINING XX MIN
---
DEFROST XX
WAIT FOR
DEFROST XXX
WAIT FOR
UNIT DRYING XXX
CHECK FILTER >
---
CLEAN COILS >
---
07-02331B EB80
Pump is purging with countdown in seconds. Press key again to stop if needed.
E X P L A N A T I O N
Unit is powering up.
Indicates control board firmware version number.
Model number.
Unit has finished powering up and is operating.
60s delay before compressor turns on. Allows system
pressure to equalize.
First line: indicates total operating hours.
Second line: Toggles between inlet temperature and in-
let RH every 2 seconds.
First line: indicates unit is in humidistat mode
Second line: Toggles between inlet temperature and in-
let RH every 2 seconds.
Unit shuts off if inlet temp below 45° F. Turns back on
when inlet reaches 50° F.
Unit overload limit reached. Cool-down initiated.
Unit is defrosting, with countdown in seconds.
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.
Occurs when unit is turned off and coil is not frozen.
Clears the coils of water before storage.
Prompt to check filter.
Prompt to clean coils and interior.
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.
E X P L A N A T I O N
6
U S E R A C T I O N
None
None
None
None
None
None
None
None
None
None
None
None
Check filter. Press the > key
to reset
Clean coils. Press the > key
to reset
EnviroBoss.