Fujitsu WPYA100LA Service Manual page 9

ELECTRIC CHARACTER
[table 1] Sensor, temp. defrost
Sensor, temp. outdoor
Sensor, temp. suction
Sensor, temp. outgoing
and return circulating water
Temp.(°C)
0
5
10
15
20
25
30
35
40
45
50
55
DISPLAY OF ERRORS IN THE PAST
1. Display method
For a unit display board
•
Press and hold the PUMP SW. and RESET SW. at the same time for 5 seconds to display a past error code and its
sequence number.
The PUMP SW. can then be used to select between a maximum of 8 past error codes to display. (If there are no er-
ror codes, " - - " is displayed.)
2. Display cancellation
For a unit display board
•
While an error code is being displayed, press and hold the PUMP SW. and RESET SW. at the same time for 5 sec-
onds to cancel the error code display and turn off the display.
Alternatively, if no operations are performed for 5 minutes, the error code display is automatically cancelled and
the display turned off.
While an error code is being displayed, press and hold the reset switch for 10 seconds or more to delete all past
error codes. The display turns to " - - ".
Resistance(kΩ)
31
24
19
15
12
10
8
6.7
5.5
4.6
3.8
3.2
TROUBLESHOOTING GUIDE
[table 2] Sensor, temp. discharge
Temp.(°C)
10
20
35
40
50
80
– 9 –
Resistance(kΩ)
1,000
600
300
250
160
50