Bunn SRU Operating & Service Manual page 10

TROUBLESHOOTING (cont.)
PROBLEM
Brew cycle will not start (cont)
Tank not filling
PROBABLE CAUSE
3. Water level below pump housing.
(Water level in the hot water gauge
glass should be approximately half
full).
4. ON/OFF Switch
5. Start Switch
6. Timer
7. Pump
8. Solenoid Valve
9. Strainer
1. ON/OFF Switch (This switch must
be in the "ON" position for the refill
circuit to operate.
2. No water
3. Solenoid Valve
4. Probe
5. Liquid Level Board
Page 10
REMEDY
Be sure water shut-off valve is open
and that the in-line filters or strainers
are not blocking water flow. (Do not
confuse water shut-off valve with the
manual fill and drain valve underneath
the brewer).
Refer to Service - ON/OFF Switch for
testing. See page 22
Refer to Service - Start Switches for
testing procedures. See page 28
Refer to Service - Timer for testing
procedures. See page 31 or 33
Refer to Service - Pump for testing
procedures. See page 24
Refer to Service - Solenoid Valve for
testing procedures. See page 26
(A) Direction of flow arrow must be
pointing towards brewer.
(B) Remove the strainer and check for
obstructions. Clear or replace.
Refer to Service - ON/OFF Switch for
testing procedures. See page 23
Be sure water shut-off is open and that
in-line filters or strainers are not block-
ing water flow. (Do not confuse water
shut-off valve with the manual fill and
drain valve underneath brewer).
Refer to Service - Solenoid Valve for
testing procedures. See page 26
Refer to Service - Probe for testing
procedures. See page 21
Refer to Service - Liquid Level Board
for testing procedures. See page 21
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