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14
Remove the screws holding the bottom cover plate, using a Phillips screwdriver. Disconnect the power
cord quick connector (#1). Loosen the two hose clamps (#2 and #3) and remove the hoses from the pump.
Unscrew the screw attaching the 2 ground cables (#4), and nally, loosen the screw attaching the pump.
You can now remove the pump.
To access the impeller you need to unscrew the screws holding the pump front casing. Lift the front casing
o to clean it on the inside. The impeller, the impeller shaft and the O-ring should also be removed for
cleaning.
Use the procedure for removing but in reverse order to assemble all parts. Ensure that all parts in the
pump housing are properly attached before tightening the screws. Ensure that both ground cables are
attached to the fastening screw (#4).
Fault Indication:
If during the use of the machine, the machine turns o the power automatically, and the failure code
appears on the display at the same time:
E1: Indicates temperature probe failure. Please check whether the probe (sensor) on the bottom plate is
kept clean, not covered or stuck by sediment or stains, or open the bottom plate and check whether
the wire connection of temperature probe is loose on the PC board.
E2: The temperature sensor is broken and needs to be replaced.
E3: Indicates that the thermostat has detected a dry-boil and shut down.
The following three occasions may cause this fault normally, which needs to be checked and
conrmed:
A. No water or very little water inside of the brew kettle before start to heating;
B. During brewing, some chocolate malt or black malt is ground into powder due to its crispness or
the malt is ground up. The powder passes through the screen or surrounding crevices to the bottom,
forming a layer of silt to cover the whole heating area or temperature probe. In this case, pour out
the wort and take out the mash,clean the kettle,restart the machine.
E4: Means the temperature in the machine is overheated. The temperature exceeds the set temperature
of the thermostat and the thermostat fails. Let the machine stop working, disconnect the power
supply, wait for the machine to cool completely, then restart.
Front Casing
Impeller
Shaft
Magnet Capsule
O-Ring
Rear Casing
Drive Magnet
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