Fujitsu WATERSTAGE 112 Maintenance Document page 99

Heat Pump, Split System, Single Service, 3 phase
Table of error messages which can be displayed:
No. Designation of error
0: No fault
10: Outdoor sensor
30: Flow sensor 1
31: Cooling flow sensor 1
32: Flow sensor 2
33: Heat pump flow temp
sensor error
44:
Heat pump return temp sensor
error
50: DHW temp sensor 1
60: Room sensor 1
65: Room sensor 2
76: Special sensor 1
83: BSB wire short-circuit
84: BSB, address collision
85: Radio communication error
98: Extension module 1
99: Extension module 2
100: 2 master clocks on bus
102: Clock without running
supply
105: Maintenance message
121: HC1 flow temp too low
122: HC2 flow temp too low
126: DHW charge monitoring
127: Anti-legionella temperature
134: Heat pump alarm summary
138: No heat pump control
sensor
146: Sensor / control device
configuration
171: Alarm contact 1 activated
172: Alarm contact 2 activated
176: Hydraulic pressure 2 too
high
177: Hydraulic pressure 2 too
low
178: HC1 safety thermostat
179: HC2 safety thermostat
201: Frost alarm
243: Swimming pool sensor
325: BX/ext unit: same sensors
327: Ext modules: same
functions
329: Ext modules/mixing grp:
same functions
330: BX1 no function
331: BX2 no function
332: BX3 no function
333: BX4 no function
334: BX5 no function
335: BX21 no function
336: BX22 no function
357: cooling circuit flow temp
not reached
359: no cooling valve Y21
Maintenance Document 1394-1
Location
Manual
B9 No
B1 No
B16 No
B12 No
B21 No
B71 No
B3 No
No
No
BX No
No
No
No
No
No
No
No
No
No
No
No
No
E20 Yes
No
No
No
H2 No
H2 No
H2 No
No
No
B21/71 Yes
B13 No
No
No
No
No
No
No
No
No
No
No
No
No
Reset
HP oper.
Automatic
No Yes
No Yes
No Yes
No Yes
No Yes
No per diagram
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
Number * No
Yes No
No Yes
No Yes
No Yes
No Yes
No No
No Yes
No Yes
No No
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
No Yes
Priority
6
6
6
6
6
6
6
6
6
3
8
3
8
8
8
3
3
5
6
6
6
6
9
1
3
6
6
6
6
3
3
9
6
3
3
3
3
3
3
3
3
3
3
6
3
99