MovinCool Office Pro W20 - Manual (Page 25)

25
OPERATION (cont.)
Self-Diagnostic Codes
Self-diagnostic codes are displayed on the control board under the following
conditions.
Contact your MovinCool reseller or a qualified technician if problem persists.
LCD Display Codes Condition
When the drain tank switch shuts off the unit, LCD
displays “TANK FL” and “TANK FULL” LED flashes.
Once emptying the drain tank procedure is
completed and ON/OFF has been pushed, unit
returns to normal operation.
When the condensate pump stops pumping water
due to any kink and/or blockage in the drain line or
due to improper routing of the drain line, the
compressor shuts off, and the LCD displays “AS”.
Once the condition is fixed and unit has been
RESET, the unit returns to normal operation.
To RESET: Press FAN HI/LO and COOL ON/OFF
buttons simultaneously for 5 seconds.
When high pressure switch is activated for the first
2 times in 24 hours, display shows “HP” but goes
away as the high pressure switch resets. If the high
pressure switch is activated 3 times in 24 hours, unit
displays blinking “HP” and a buzzer turns on (see
page 34). Unit returns to normal operation after
problem is fixed and controller is RESET.
To RESET: Press FAN HI/LO and COOL ON/OFF
buttons simultaneously for 5 seconds.
When room thermistor becomes open or shorted,
display shows “OPEN RT” or “SHRT RT” and cool
mode operation is off. Display and cool mode
operation are returned to normal operation after
room thermistor is fixed.
When freeze thermistor becomes open or shorted,
display shows “OPEN FT” or “SHRT FT” and cool
mode operation is off. Display and cool mode
operation are returned to normal operation after
freeze thermistor is fixed.
When the unit detects a signal from the fire alarm
system, the display shows "ALRM" and a buzzer
turns on. Check the fire alarm system and confirm
that there is no signal input to the unit. The unit
returns to the normal operation after the problem is
fixed and the controller is RESET.
To RESET: Press FAN HI/LO and COOL ON/OFF
buttons simultaneously for 5 seconds.