Electrolux EXH09HL1W Service Manual page 50

(19) Power Protection
L9 is displayed on indoor unit
Yellow LED lamp of outdoor unit blinks for 9 times
When Pc≥1900w, if Pc≤1800w for continuous 3min, the unit will resume normal operation;
≥2000w, the unit will operate at decreased frequency;
When Pc
B
When Pc≥2100w, compressor stops operation.
# Check if power of compressor meets the conditions mentioned above. Decrease the frequency so as to reduce the power to
less than 1800w for 3min. Then check if the compressor resumes operation.
(20) Other Normal Malfunction
COOL operation is normal but HEAT operation is unavailable.
HEAT operation is normal but COOL operation is unavailable.
It is usually due to K3 contact adhesion of outdoor controller, which can be judged by universal meter.
210-10 ADL
COOL
normal
operation is unavailable.
In HEAT mode, measure voltage
between two wire of 4-way-valve by AC
voltage grade of universal meter.
Voltage between 4V and
AC-L2(detection point 10)
is not around AC220V
Replace outdoor controller
Resistance is too
large
Replace 4-way valve
operation is
but HEAT
If it is AC220V
Cut-off power supply and unplug two wire of
4-way-walve. Then measure if resistance
between the two wire is 1-2K
The system of the unit is
50/62
4-way valve is
normal
abnormal
599 75 60-77