Repair manual

Page 7
TROUBLESHOOTING (cont.)
PROBLEM
PROBABLE CAUSE REMEDY
BREWING CIRCUIT
Brew cycle will not start
Consistently low beverage level in
the dispenser or beverage overfl ows
dispenser
Brew cycle starts, then aborts and
returns to Main screen after 20
seconds (SB 153)
1. Display's error message
2. No water
3. No power or incorrect voltage to
the brewer
4. ON/OFF switch not in the "ON"
position
5. Low water temperature (Brew
lockout is enabled)
6. Water not touching refi ll probe
inside tank
7. Membrane Switch
8. Dispense valve
9. Control board
1. Brew volume
NOTE: Volume adjustments must be
made with sprayhead installed.
2. Lime build up
3. Dispense Valve
1. Level probes shorted
2. On pour over models, the opera-
tor poured in water and pressed the
start button
Brewer has shut down due to mal-
function. See Diagnostics.
Water lines and valves to the brewer
must be open.
Check for voltage across the termi-
nals at the terminal block.
The indicator lamp must be lit
Allow brewer to heat until ready, or
disable the brew lockout feature.
Water must be in contact with refi ll
probe before brew cycle will start.
Check/replace
Check/replace
Check/replace
Inspect the dispense valve and
sprayhead for excessive lime de-
posits. Delime as required.
Remove dispense valve and clear
any obstructions. Rebuild or replace
valve if necessary. (See page 24)
Check/replace
Delime as required.
Ensure mylar shield(s) are installed
on top cover
Instruct operator to use one proce-
dure but not both
39132 061809