Basic Diagnostics - modbar espresso system Manual

• Module not heating:
Verify that the power switch is turned
clockwise to the operating mode position
and not counter-clockwise to the standby
mode position. Also, ensure that the
tap is plugged in. If the module loses
communication with the tap, all heating is
terminated.
• Note on safety reset switches:
The espresso module features two safety
reset thermostat controlled switches, one
on each boiler. The espresso tap also
features one safety reset switch on the
brew head. If a boiler (or brew head) does
not heat it may be due to the activation of
one of these switches, which is triggered by
excess temperature and signifies abnormal
operation and possibly failed components.
The safety switches mentioned are all
internal to the espresso module and
espresso tap and are not user re-settable.
If you believe a safety switch has been
activated, the module or tap may require
service by an authorized technician. Please
contact Modbar for additional support and
information.
• Tap not dispensing:
Verify that the water supply to the module
is turned on. Also, verify that there are no
kinks in the fluid line between the tap and
the module. Verify that the tap display is
functioning as normal. If it is not, please
check that the tap electrical connection is
plugged in. If you are still having trouble,
please contact Modbar Support.
• Pump is overshooting pressure:
Verify that your profile has a minimum of
2 seconds programmed for T1. Less time
can cause the pump to overshoot, as it is
climbing to pressure to quickly.
Also, ensure that your filtration supply is

8. Basic diagnostics

adequate for all of the equipment installed
on it. In some cases, running a sink or
other equipment connected to the same
filtration line as the Modbar will cause
pressure spikes during the extraction
process. This is due to a sudden amount
of water being drawn by a different device.
This causes the pump to compensate for
the reduced flow rate, and the pressure to
spike once the device stops drawing water.
• Module not dispensing water:
Verify that water is turned on to the
module.
Verify that water pressure is adequate.
The operable pressure range for Modbar
equipment is 0.25-0.50MPa. If water
pressure is too low, the module will not
dispensing water.
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