Proserve Compact 25 - Machine Will Not Stop Automatically; Machine Does Not Stop When Stop Button Pressed; Abnormal Friction Noise; Frozen Cylinder

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C. The machine will not stop automatically
1. If the machine is constantly in freeze mode without stopping then press the ‘STOP’
button. This situation may occur when the mix in the cylinder is too low and there
is not enough resistance in the cylinder for the machine to automatically stop.
Solution: Remove the hopper valve from the hopper so the mix flows freely into the
cylinder from the hopper and re-insert the tube. Also check that the air tube is
inserted correctly (See procedure 3, p. 11 – Hopper Air Inlet Valve).
2. If the condenser has not been cleaned/serviced for a long period and becomes
clogged up, the machine will not have sufficient air flow and will over-heat.
Solution: The condenser needs to be cleaned/serviced every six months by an
approved/qualified engineer. This is included within your 6 monthly service.
3. The machine may be low on gas.
Solution: This needs to be undertaken by a service engineer. Please call: 01395 239500.
D. The machine will not stop when you press the “stop” button.
 The piston on the dispensing door is “open” or the spring lever on the
dispensing door has not returned to the “down” position.
 Ensure the piston is closed and the spring lever is in the down position.
E. Abnormal friction noise occurs whilst making ice cream for a
short period, the ice cream can’t be drawn off and the mix has
frozen in the cylinder.
There are four possible reasons which may cause this problem:
1. There is not enough mix in the cylinder when the mix is first filled (primed) or there is
not enough mix in the hopper during the ice cream making process.
2. There is too much water in the mix or there is too much water remaining in the
cylinder after cleaning.
3. The target hardness is set too high and the refrigeration function has kept working
for too long, freezing the product.
4. In the case of the Compact 25 only, the product has not been drawn off from both
cylinders simultaneously. This will cause freezing of the cylinder which is not being
used. Always ensure both barrels are being drawn off evenly.