EN
Troubleshooting
CoolMatic
54
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 CoolMatic CRX110
Page 2: ...CoolMatic 3 CRX 50 1 2 3 5 4 6 7 1 1 2 3 5 4 6 7 CRX 65 2...
Page 3: ...CoolMatic 4 1 2 3 5 4 6 7 CRX 80 3 4 1 2 3 5 4 6 7 CRX 110...
Page 4: ...CoolMatic 5 5 5 1 2 3 5 4 6 7 CRX 140 1 2 3 4 6 5 7 8 6 CRX50 CRX65 CRX80...
Page 5: ...CoolMatic 6 7 CRX110 CRX140 1 2 3 4 6 5 8 7 1 4 3 2 ca 50 mm 8...
Page 6: ...CoolMatic 7 2 1 9 1 2 0...
Page 7: ...CoolMatic 8 a b c...
Page 9: ...CoolMatic 10 1 Vent Lock g 380 534 500 CRX 50 h CRX 65 448 525 545 i...
Page 10: ...CoolMatic 11 CRX 80 475 640 528 j CRX 110 520 745 558 k...
