Sharp AH-X108E Service Manual page 31

Function
NO
Lowers the operating frequency if the
compressor AC current exceeds
Peak control level
[10.1/8.0A (heating), 7.5/6.15A (cooling)]
AC
5
[AY-X138E/AY-X108E]
overcurrent
Stops the compressor if the current
exceeds peak control level at 40 Hz or less.
Stops the compressor if the compressor
AC current exceeds 15A.
Stops the compressor if the compressor
AC current exceeds 3.37/2.83A
Compressor
6
[AY-X138E/AY-X108E]
lock
immediately after activating the compressor
(at 17 to 30 Hz).
Lowers the operating frequency if the
temperature of the compressor chamber
Compressor
thermistor (TH1) rises above 105°C.
7 overheating
Stops the compressor if the thermistor
control
stays above 104°C for 4 minutes, or 1
minute at minimum frequency or less.
Compressor
Stops the compressor if the compressor
high
chamber thermistor is above 114°C.
8 temperature
(Or when TH1 shorts)
error
Outdoor Lowers the operating frequency if the
overheating
temperature of the outdoor heat exchanger
control
9
rises above 57°C during cooling. Stops the
compressor if the temperature stays above
57°C for 4 minutes, or 1 minute at
minimum frequency or less.
Stops the compressor if an outdoor
Outdoor
10 thermistor (excluding TH1) shorts.
thermistor
short
(Except for the AU-X138E, AU-X108E)
Stops the compressor if the circuit of an
Outdoor
11 thermistor outdoor thermistor breaks.
short
(Except for the AU-X138E, AU-X108E)
Stops the compressor if if the operating
AC
frequency is above 70 Hz and the
12 abnormal
compressor current is below 1.1 A/0.85 A.
current error
[AE-X138E/AE-X108E]
Turns the compressor relay off if the
indoor unit does not receive a serial
signal from the outdoor unit for 8 minutes.
Serial
13
signal error
Stops the compressor if the outdoor unit
does not receive a serial signal from the
indoor unit for 30 seconds.
When the rise and fall in the detected
Four-way temperature of the outdoor heat
14
valve error
exchanger thermistor (TH2) do not agree
with the operating cycle.
Operation
Detection
Description
time
During
compressor
operation
Immediately
after
compressor
activation.
During
compressor
operation
During
operation
During
compressor
operation
When
compressor
is activated
When
compressor
is activated
During
compressor
operation
During
operation
During
operation
4 minutes after
compressor
activation
31
Restart Restart
condition times
Automatically restarts after
4 times
safety time (170 seconds)
Automatically restarts after
4 times
safety time (170 seconds)
Automatically restarts after
No limit
safety time (170 seconds)
Automatically restarts
when thermistor (TH1)
4 times
temperature falls below
100°C (approximately 30
minutes)
Automatically restarts after
No limit
safety time ( (170 seconds)
Automatically restarts after
4 times
safety time ( (170 seconds)
Automatically restarts after
4 times
safety time ( (170 seconds)
Automatically restarts after
4 times
safety time ( (170 seconds)
Automatically restarts less
No limit
than 8 minutes after operation
stops.
Restarts after reception of
No limit
serial signal.
Automatically restarts after
safety time (170sec.)
4 times
AH/AU-X108E
AY/AE-X108E
AH/AU-X138E
AY/AE-X138E
Self diagnostic
display
Indoor Outdoor
Yes Yes
Yes Yes
No No
Yes Yes
No No
Yes Yes
Yes Yes
Yes Yes
Yes
Yes
Yes Yes