Welch MP 601 E - 7 Troubleshooting

Troubleshooting
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7 Troubleshooting
During the warranty period, intervention in the diaphragm pumps and accessory components
may only be made by manufacturing firm.
Trouble
Cause
Remedy
by:
with:
Vacuum pump
does not start
No power supply
Qualified
electrician
Check electrical installation
Motor defective
Service
workshop
Exchange
Pump body defective
Repair and/or exchange
Vacuum pump
does not
generate a
vacuum or
only an
inadequate
one
Connected apparatus
and/or
connecting elements
leaking
User or
Service
workshop
Identify and seal the leak,
replace the seals and/or
hoses if necessary.
Vacuum pump leaking
Check the hose
connections between the
pump heads, replace the
hoses and/or fittings if
necessary.
Pump head leaking
Service
workshop
Repair and/or exchange
Diaphragm defective
User or
Service
workshop
Exchange of the diaphragm
(see chapter 6.2)
Valve defective
Exchange of the valve
(see chapter 6.2)
Vacuum pump dirty
General maintenance /
cleaning
Valves dirty
Cleaning condensates and
foreign objects out of the
valves.
Running noise
Vacuum pump dirty
User or
Service
workshop
General maintenance /
cleaning
Cable(s)
defective and/or brittle
Qualified
electrician
Exchange of the cable(s)