Fujitsu WGYA050DG6 Design & Technical Manual page 168

Table of error messages which can be displayed:
No3 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
174: Alarm contact 4 active H3
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
Reset
Location
Manual
BX4 (X84)
No
BX1 (X80)
No
BX1 (X80)
No
BX31 (X153) No
BX1 (X80)
No
BX2 (X80)
No
BX3 (X84)
No
No
No
BX
No
No
No
No
No
No
No
No
No
No
No
No
No
E20 Yes
No
No
H1/H31
No
H21/H22/
No
H32
No
No
No
BX1 (X80)
Yes
BX34 (X154) No
No
No
No
No
No
No
No
No
No
No
No
- (CS01 - 52) - - (CS01 - 52) -
HP
operation
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 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
Control system
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
3
3
9
6
3
3
3
3
3
3
3
3
3
3
6