Haier AD28NAMBEA - Heating Malfunction Troubleshooting Flowchart

2. Heating
Y
change the designed
TEMP.
replacing compressor
superaddition condensate
clear the filter
enact fan speed of
high or middle speed
airiness circle
improperly
heat insulation of condensate
pipeline between indoor unit
and outdoor unit is normal
N
N
compressor fault
quantity of condensate
charge is not enough
fan speed at
low-speed
air entrance filter
obstruct
Y
Y
Y
Y
condensate
flowage failure
fails in heating
begining
N
N
fault in 4-way vavle
the heating load
beyond the allowable
arange
the enactment TEMP.
right or not
Y
Y
Y
insulate the two
pipeline respective
redesign the TEMP.
change the
4-way vavle
use arange is right
or not
Y
blowing cold air
fault in 4-way vavle
replacing the
4-way vavle
Y
prevent cold air
failure
pipe sensor of
indoor unit is fault
replacing the
4-way vavle
Y
Figure 7-2
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