Operation Manual

63
Troubleshooting
1 •
The machine is not working at all and no lights come on.
Be sure it is plugged in and the circuit into which it is plugged is working. Try another outlet if in doubt.
Try an outlet on a circuit that powers no other electrical appliances. Check the voltage of the circuit while the
DD is in operation. Be sure that the PID is on (see Chapter 12) and that the power switch is in “Position I” or
“Position II.”
2 • I hear the pump but no water comes out
Rotary pumps are designed to receive water from a pressurized source. You may need to prime the pump
if you are not using the plumbed option and a situation such as one of the following has taken place:
•
You are using the reservoir for the first time
•
You haven’t used the reservoir for a while (such as a plumbed machine being descaled)
•
You ran the reservoir out of water
•
The reservoir pik up hose came out of the water and pulled in air
Follow these directions to prime the pump:
1 Be sure that the water selector valve is switched to the reservoir position (pointing to your LEFT when
looking under the machine from the front)
2 Lift the hose out of the reservoir and remove the filter from the end of the hose.
3 Hold the hose straight up and using a suitable tool (turkey baster, syringe, or small funnel for example)
completely fill the hose with water.
4 While still holding the filled hose upwards in one hand, turn the power switch to “Position 1” and lift the
brew lever all the way. Almost immediately, the water in the hose should be drawn into the pump. As soon
as the water level in the hose begins to recede, immediately lower the brew lever fully and turn the
power switch to “Position 0.” If the water is not drawn in you may need to force the water with some pres
-
sure into the hose while the pump is running. A large size syringe or equivalent tool can be used.
5 Replace the filter on the end of the hose and lay the filter flat on the bottom of reservoir.
6 Turn the power switch to “Position I” and lift the brew lever. The pump should now be drawing water from
the reservoir and a flow of water should come from the group.
3 • The brewing temperature is too hot or too cold.
Use the information in Chapter 12 and verify that the PID Offset Temperature has been correctly adjusted
to match the temperature measurement standard you have chosen (the correct offset is 19 for Fahrenheit and
10 for centigrade).
4 •
No water can be pumped when plumbed
Be sure that the valve on the main water source supplying the DD is in the on position (not part of the
DD). Check that the lever on the bottom of the DD is pointing towards the LEFT when facing the front of the
machine.
5 •
I can pump water through the group, but the water is always cold.
Check that the PID is on (Displaying a temperature and not the word “oFF”).