problem solving
steam leaks from the disc safety valve
Check that the vent screw has not become loose. If it has, tighten it
with a screwdriver. If the disc has become brittle with age, it may have
developed a hairline crack. If this has happened, remove the vent screw,
replace the fusible disc with one of the spare discs supplied with the
pressure cooker, then replace the vent screw.
It shouldn’t be necessary to disturb the knurled bolt, fibre washer and
internal nut.
the spring safety valve is blocked
If the steam safety valve becomes blocked, it can be dismantled
easily for cleaning.
Remove the wire loop from the top of the piston in the same way
you would remove a key from a keyring, then unscrew the knurled
nut to release the piston and spring. It should not be necessary to
disturb the hollow bolt, fibre washer and locknut.
To reassemble, place the piston inside the spring, push them up
into the hollow bolt (from underneath the lid), hold in place with
a finger, and thread the wire loop through the hole in the top of
the piston. Check that the plastic seal is seated inside the knurled
nut, then screw it on to the end of the hollow bolt.
loose handles
Use a cross head screwdriver to tighten the screws. The (single)
body handle screw is on the underside of the handle. The (two) lid
handle screws are inside the lid rim. Do not attempt to loosen the
lid handle screws or remove the lid handle.
difficulty in closing the lid
Smear a little cooking oil around the edges of the lid and body rims.
difficulty in opening the lid
The cooker can’t be opened till all the pressure has been released – leave it to cool.
safety features
Your Tower pressure cooker has the following safety features:
1 When the pressure inside the pressure cooker reaches the working pressure of approximately
88 kiloPascals (0.88bar/12.8 p.s.i.), the weight will rise up the vent pipe and excess pressure
will escape.
2 If the vent pipe is completely blocked, the spring safety valve will lift to vent excess steam.
3 The fusible disc in the disc safety valve is made of a special alloy. If the first two safety devices
malfunction, this will melt and release excess pressure.
care and maintenance
Before carrying out any maintenance, leave the pressure cooker to cool down fully. Use the
handles whenever possible. If you must handle any hot part, wear oven gloves.
gasket (lid sealing ring)
With use, the gasket will shrink slightly. After each use, it should be stretched slightly in all
directions. It will also harden. It should be replaced if steam is found to be leaking regularly from
below the rim of the lid, or after 9-12 months regular use. You should replace the pressure
indicator seal at the same time.
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