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Page 24 Shuttle Brewers & Airpot/Shuttle Brewers
Troubleshooting (cont.)
Heating Problems
Problem Possible Causes Service Check Remedy
Tank does not heat
• Contactor faulty.
• Heater faulty.
• Control board is faulty.
• Ensure that coil on
contactor is energized
by ensuring that there
is proper voltage
between the brown and
white wires attached to
the relay. Check each
side of the contactor
(Line and Load) at each
pole for continuity.
• Check resistance
across element(s)
with power conductors
disconnected.
• Check to ensure proper
connection between
connector 5-pin and
control board. Check
for proper connections
in all heater control
circuitry. Check for
proper connections
between N terminal of
contactor coil and
terminal block.
• If the contactor coil is
energized and there is an
open circuit across any of
the contactor poles, replace
contactor.
• If resistance is much less than
8 Ohms or much more than
15 Ohms, replace heater(s).
• If 5-pin connector is securely
attached to control board
and all connections are
secure and functioning
except there is not 120 Vac
across contactor coil terminals,
replace control board.
Brewing Problems
Problem Possible Causes Service Check Remedy
Brew volume too
large or too small
• Portion selected on
touchpad not correct.
• Timer not set properly.
• Review timer settings
versus portion size.
• Compare timer setting
to either factory setting
or initial user setting to
determine if it has
been changed.
• Adjust timer to desired value or
select different portion size.
• Adjust timer to desired value.