EN
Troubleshooting
CRX1050 – CRX1140
30
12
Troubleshooting
The significance of the red LED (fig.
6
2, page 5, fig.
7
2, page 6)
For operational faults it illuminates several times. The number of pulses
depends on the type of fault.
Each flash lasts for one quarter of a second. After the series of impulses a
pause follows. The sequence for the fault is repeated every four seconds.
Number of
flashes
Fault
Possible cause
1
Line Voltage
The supply voltage is outside of the set range.
2
Excessive fan current
The fan load on the electronics unit is more
than 1 A.
3
The motor doesn't start
The rotor is jammed.
The pressure difference in the cooling system
is too high (> 5 bar).
4
Speed too low
If the cooling system is overloaded, the mini-
mum speed of the motor of 1,850 rpm cannot
be maintained.
5
Overheating of the elec-
tronics unit
If the cooling system is loaded too heavily or
the temperature is set too high, the electronics
can overheat.
Constantly
NTC errors
NTC is defective.
Summary of Contents for CRX1050
Page 2: ......
Page 3: ...CRX1050 CRX1140 3 CRX 1050 1 2 3 5 4 6 7 1 1 2 3 5 4 6 7 CRX 1065 2...
Page 4: ...CRX1050 CRX1140 4 1 2 3 5 4 6 7 CRX 1080 3 4 1 2 3 5 4 6 7 CRX 1110...
Page 5: ...CRX1050 CRX1140 5 5 5 1 2 3 5 4 6 7 CRX 1140 1 2 3 4 6 5 7 8 6 CRX1050 CRX1065 CRX1080...
Page 6: ...CRX1050 CRX1140 6 7 CRX1110 CRX1140 1 2 3 4 6 5 8 7 1 4 3 2 ca 50 mm 8...
Page 7: ...CRX1050 CRX1140 7 2 1 9 1 2 0...
Page 8: ...CRX1050 CRX1140 8 a b c...
Page 10: ...CRX1050 CRX1140 10 1 Vent Lock g 380 534 500 CRX 1050 h CRX 1065 448 525 545 i...
Page 11: ...CRX1050 CRX1140 11 CRX 1080 475 640 528 j CRX 1110 520 745 558 k...
