Bunn SRU Operating & Service Manual page 12

TROUBLESHOOTING (cont.)
PROBLEM
Circuit breaker keeps tripping
Water keeps running from swing
spout
Inconsistent coffee yield
Funnel overflows
PROBABLE CAUSE
1. Circuit Breaker
2. ON/OFF Switch
3. Brew Circuit
4. Refill Circuit
1. Timer
2. Start Switch
1. Timer
2. Solenoid Valve
3. Lime build-up in swing spout and
pump tubing.
1. Filters
2. Hole in bottom of funnel
obstructed.
3. Pump - Flow Rate
Page 12
REMEDY
Refer to Service - Circuit Breaker for
testing procedures. See page 15
Refer to Service - ON/OFF Switch for
testing procedures. See page 23
Refer to Service - Pump Assembly for
testing procedures. See page 24
Refer to Service - Liquid Level
Board for testing procedures. See
page 21
Refer to Service - Timer for testing
procedures. See page 31 or 33
Refer to Service - Start Switch for
testing procedures. See page 29
Refer to Service - Timer for testing
procedures. See page 31 or 33
Refer to Service - Solenoid Valve for
testing procedures. See page 26
Remove swing spout and insert
deliming rod down into pump tubing
as far as possible.
Use Bunn filters made for the SRU
®
brewer.
Remove obstruction.
Check pump flow rate with a watch.
Pump flow rate should be approxi-
mately 24 ounces in 15 seconds. Be
sure pump assembly is free of any
obstructions.
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