Buderus Logano plus GB312, Инструкция по установке и обслуживанию

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10
Troubleshooting
Logano plus GB312 – 6 720 806 273 (2013/01) 59
V CO 568 Water pressure sensor fault
(cable break). Water pressure sensor
break (voltage > 3.5 V). Check connection
between SAFe and water
pressure sensor for poor
contact, breaks and
damage.
Check water pressure
sensor.
Establish good electrical
contact. Replace cable if
necessary.
Replace water pressure
sensor.
V CO 569 Water pressure sensor fault
(short-circuit). Water pressure sensor
short-circuit (voltage
< 0.5 V). Check connecting cable
running to water pressure
sensor.
Check water pressure
sensor.
Rectify any short-
circuits.
Replace water pressure
sensor.
V CY 573 Flow temperature
< 23 °F (< -5 °C) (circuit
break)
The control unit receives
unrealistic values from
the supply temperature
sensor. Check the connecting
cable between the SAFe
and the return
temperature sensor.
Check electrical
connection of connecting
cable to SAFe.
Check resistance levels of
temperature sensor
against table
Check voltage at
temperature sensor
terminals on SAFe against
table.
Replace connecting
cable if necessary.
Rectify contact problem
if necessary.
Replace temperature
sensor is necessary.
If temperature sensor
resistances are correct
but voltages incorrect,
replace SAFe
V CY 574 Flow temperature
>266°F (>130°C) (short-
circuit)
The control unit receives
unrealistic values from
the supply temperature
sensor. Check the connecting
cable between the SAFe
and the return
temperature sensor.
Check electrical
connection of connecting
cable to SAFe.
Check resistance levels of
temperature sensor
against table
Check voltage at
temperature sensor
terminals on SAFe against
table.
Replace connecting
cable if necessary.
Rectify contact problem
if necessary.
Replace temperature
sensor is necessary.
If temperature sensor
resistances are correct
but voltages incorrect,
replace SAFe
V LP 570 Too many resets via the
interface. Too many resets have
been received via the
interface within a certain
period.
Important: this fault can
be reset only by the
button on the SAFe.
Faults have continually
been simply reset and not
rectified.
There is a fault on the
BC10 causing continual
resets.
There is a malfunction on
the SAFe.
Identify and eliminate
the cause of the problem
causing the resets.
Replace BC10.
Replace SAFe.
Type
1)
Display code Fault code Cause Description Testing sequence/
Cause Measure
Table 23 Fault displays
1) V = interlocking; B = inhibiting; BC = operating code