16
Fault-Cause-Remedy
Fault
Cause
Remedy
Change-over switches constantly to and
fro
Reserve supply will exhaust
Reduce gas consumption.
Observe pressure gauge.
Shut off side with higher pressure, for
use the side with lower pressure.
After empty message: open side with
higher pressure and replace empty
cylinders.
Have repaired by experts.
Pressure drop in reserve manifold
although change-over valve is OK
Reserve supply will exhaust
Observe pressure gauge.
Exhaust valve open ? If yes, close it.
Leakage ? If yes, close cylinder valve at
leak manifold until manifold in operation
is full.
Have repaired by experts.
Minor leakage
Increased gas consumption
Have repaired by experts.
Major leakage
Increased gas consumption
Inadequate gas supply
Gas accumulates in the room
No fire, do not smoke.
Establish emergency supply.
Reduce gas consumption.
If possible, shut off respective range of
gas supply.
Have repaired by experts.
Line valve cannot be actuated by normal
force of hand
Restricted operation
Have repaired by experts.
Cylinder valve cannot be actuated by
normal force of hand
Restricted operation
Return cylinder back to manufacturer.
Leak in connection between connecting
bend and gas cylinder
Gas escapes
Use new sealing ring appropriate to
respective type of gas.
Both cylinder manifolds and the 3rd
source (reserve supply) are empty.
3rd source (reserve supply) was not shut
off via ball valve.
3rd source (reserve supply) must be shut
off via ball valve during normal operation
with cylinder manifolds. Ball valve to
3rd source (reserve supply) must only
be opened when cylinder manifolds are
reported empty. Install new cylinders.