Troubleshooting Repair Guide 0918
11
TABLE 1
MODEL
BOILER GROUP
WORKING P-STAT
SAFETY P-STAT
GVC-9000
1.19 gal.
9.5Bar
10.5BAR
GVC-18000
2.38 gal.
9.5Bar
10.5BAR
GVC-35000
4.76 gal.
9.5Bar
10.5BAR
GVC-72000
7.66 gal.
8.5Bar
10.5BAR
* The PCB may have a different suffix, please check your parts list for the complete
parts number!
ATTENTION:
Some parts are specific to a certain voltage and hertz, such as boilers,
vacuum heads etc... ! Always check your parts list for the exact parts number.
VACUUM RUNS CONTINUOUSLY, POORLY OR NOT AT ALL.
1.
The vacuum function uses a relay on the PCB which is enable by the operator on
the grip. This relay may get stuck (the contacts in the relay can get sort of welded
together after a prolonged and heavy use) so that the vacuum cannot be turned
OFF on the grip, but must be turned OFF on the vacuum head.
1a. Exchange the PCB.
2.
The vacuum has only low or no suction power.
2a. Clean or exchange the internal filter element KIT0003.
2b. Check all hoses for blockage and leakage, including the vacuum hoses inside
the machine. If a hose is damaged, exchange!
2c. Make sure the short hose between vacuum and chassis is correctly connected
and not damaged.
3.
The vacuum doesn't run.
3a. First make sure the electric socket at the rear of the machine receives the
correct voltage. Turn ON at the vacuum head. If it runs, fine, if not exchange for
a new vacuum head.
3b. Inspect the 10 Ampere Fuse FU1 on the PCB and exchange if faulty.
(see picture 15)
3c. Inspect the grip and the electric connections in the socket and hose. Make
sure that all electric connections are OK and that the micro-switch on the grip
is working correctly.