Bruker BMPC/2, Technical Manual

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74 Z31823_00_05
Troubleshooting
4. Press the black QM1 button and check if the pump now works.
5. If the pump still does not work, check the on/off switch for the pump itself. The on/off
switch is located near to the mains cable input of the pump.
6. If the pump still fails, it must be replaced.
For instruction on how to exchange a pump
please read section "Replacing the Vacuum
Pump" on page 80 .
11.1.1.19 Valve 1 Failed
The valve V1 could not be switched or is not working correctly.
Solution:
1. Switch to the manual pump mode.
2. Switch on pump P1, and check the function of the valve by switching it on and off.
3. If the valve does not work, check the fuse Q4. To do this open the upper rear panel
of the BMPC/2, the Q4 fuse is located on the upper left side of the BMPC/2 line con-
trol unit. The black Q4 switch must be in the up position.
4. Recheck if the valve works, if it still does not work call bruker service for assistance.
11.1.1.20 Pump 2 Failed
Pump P2 has failed or does not work correctly. If the pump was working in automatic
mode the BMPC/2 is now using pump P1.
Solution:
1. Switch to the manual pump mode.
2. Switch on P2, but do not open valve V2, and check to see if the pump is working
correctly.
3. If not, check the motor protection switch QM2. To do this open the upper rear panel
of the BMPC/2, and press the black QM2 button located on the upper left side of the
BMPC/2 line control unit.
4. Check if the pump now works.
5. If the pump still does not work check the on/off switch of the pump itself. The on/off
switch is located near the mains cable input of the pump.
6. If the pump is not working, it must be replaced.
For instruction on how to exchange a pump
please read section "Replacing the Vacuum
Pump" on page 80 .