14
Troubleshooting
9. Troubleshooting
Phenomena
Possible causes
Solution
The unit
does not
start up
No action after
energized
No power supply
Check power supply circuit
Bad insertion for power supply plug
or bad contact.
Check the plug and insert it
well to make it well contact.
Protective tube is broken (on the
controller)
Replace controller
Controller is broken (power supply
circuit, slug, crystal vibration)
Replace controller
water blow indicator
blinks
Water tank is water blow
Pull water
Water tank is on the wrong location
Put the water tank well
Malfunction for water level switch and
circuit
Check water level switch
and circuit
Nixie tube displays
F2
Malfunction for pipe temperature sensor
(bad contact, loosened, leading wire is
broken, resistance value of temperature
sensor head is abnormal.)
Re-connect temperature
sensor
Or replace temperature sensor
Malfunction for temperature sense
circuit of circuit
Replace controller
Filter lamp is on
Filter is dirty
Clean the filter
Inlet and outlet are blocked
Remove barrier
Loud noise
The spare
parts are loosened
Find out the loosened parts
and tight it
The louver is off-center
Replace the louver
Malfunction for compressor
Replace compressor
Note: Above malfunction analysis is only for reference.