Bunn Single Operating & Service Manual page 10

TROUBLESHOOTING (cont.)
Problem
Beverage level will not adjust (Selec-
tor switch in any position)
Water flows into tank continuously
(ON/OFF Switch "ON")
Water flows into tank continuously
(ON/OFF Switch "OFF")
Water from tank is not hot
Probable Cause
1. Selector switch
1. Solenoid valve
2. Timer
1. (A) Level control board and level
probe (Electro/mechanical)
(B) Control assembly (Elec-
tronic)
2. Overflow protection switch
1. Limit thermostat
CAUTION - Do not eliminate or
bypass limit thermostat. Use only
B.O.M. part #23717.0001
2. (A) Control Thermostat (Electro/
mechanical)
(B) Control assembly (Elec-
tronic)
3. Contactor (Electro/mechanical)
4. Tank heater
Page 10
Remedy
Refer to Service - Selector switch for
testing procedures. See page 16
Refer to Service - Solenoid valve for
testing procedures. See page 33
Refer to Service - Timer for testing
procedures. See page 36 & 38
Refer to Service - Level control board
for test procedures. See page 28
Refer to Service - Control assembly
for testing procedures. See page 23
thru 27
Refer to Service - Overflow protec-
tion switch for testing procedures.
See page 32
Refer to Service -Limit thermostat for
testing procedures. See page 30
Refer to Service - Control thermostat
for testing procedures. See page
20
Refer to Service - Control assembly
for testing procedure. See page 23
thru 27
Refer to Service - Contactor for test
procedures. See page 18
Refer to Service - Tank heater for
testing procedures. See page 35
27038 091900