5
or deformed. Therefore it will not operate properly and should be replaced. When replacing the sealing ring, replace the automatic
air vent. Use only genuine Presto
replacement parts.
If the automatic air vent is ever forced out of its cover opening due to excess pressure while canning
or cooking, it is important to have the Canner properly inspected before further use. Do not attempt to
replace the automatic air vent. Send the entire Canner to the Presto Factory Service Department.
4. Be sure the vent pipe is open before each use. Clean the vent pipe with a small brush or pipe cleaner
(Fig. G).
5. When your Pressure Canner is not in use, invert the cover on the Canner body and store in a dry place.
Storing the Canner with the cover locked on may cause unpleasant odors and may deform the sealing
ring.
General Maintenance
1. Use only genuine Presto
replacement parts.
2.
CAUTION:
In time, the sealing ring may shrink and the automatic air vent may become hard and deformed or soft and sticky.
Exposure to high heat, such as a warm burner or oventop, will cause these parts to deteriorate. When this happens, replace the sealing
ring and automatic air vent. Before inserting a new sealing ring, clean the sealing ring groove with a brush. To ensure safe operation
of your Pressure Canner, it is recommended the automatic air vent be replaced whenever the sealing ring is replaced. Failure to fol-
low these instructions could result in bodily injury or property damage.
3. If the Canner body or cover handles become loose, tighten with a screwdriver.
4. If leakage of moisture or steam develops while using your Canner, check the following possible causes:
♦ The formation of a small amount of moisture under the pressure regulator is normal when canning first begins. This condensation
is a result of the temperature of the pressure regulator being lower than the rest of the Canner. If excess condensation continues,
the vent pipe may be loose and should be tightened with an adjustable wrench.
♦ Leakage between the cover and body is usually caused by shrinkage of the sealing ring after prolonged use. Replace the sealing
ring and automatic air vent.
♦ A small amount of steam or moisture may be visible around the automatic air vent as canning begins. This will stop when the
automatic air vent seals. If leakage continues, clean or replace the automatic air vent.
Do not operate your Pressure Canner with continual leakage. If the above steps do not correct the problem, return the entire unit to
the Presto Factory Service Department.
5. The dial gauge is a delicate instrument which must be handled with care. Prior to each canning season or before the next use, if the
cover has been submerged in water, dropped, the gauge glass has broken or fallen out, any parts are rusty, the pointer is not in the
“0” block, or if for any reason you believe the gauge may not be accurate, have the gauge checked for accuracy by your local family
living agent or extension home economist. If you are unable to have your dial gauge checked locally, carefully remove the gauge and
send it to the Presto Consumer Service Department (see page 6). An accurate dial gauge is necessary to help prevent food spoilage
and possible food poisoning.
6. If the Pressure Canner becomes difficult to open or close and the sealing ring has expanded, replace the sealing ring and automatic
air vent
7. Any maintenance required for this product, other than normal household care and cleaning, should be performed by the Presto
Factory Service Department.
Installing the Pressure Dial Gauge
To install the pressure dial gauge, thread the stem of the gauge into the Canner cover, turning the gauge clockwise until the dial gauge base
is flush against the cover. Stop turning when the dial gauge faces the direction you want.
Note:
Models 01/CAA12H and 01/CAA20H
are different and install with a nut.
Fig. G
