Bunn H5DV PC Service Manual page 5

TROUBLESHOOTING (cont.)
Problem
Equipment will not operate
(cont.)
Automatic refill will not oper-
ate after drawing hot water.
Water flows into the tank con-
tinuously (Dispenser discon-
nected from power source).
Water flows into the tank con-
tinuously (Dispenser connect-
ed to power source).
Water is cold.
CAUTION – Do not eliminate or bypass limit thermostat. Use only B.O.M. replacement part #23717.0003.
Probable Cause
2. Safety overflow switch
1. No water
2. Water strainer/flow control
3. Liquid level system
4. Solenoid valve
1. Solenoid valve
1. Liquid level system
1. Safety overflow switch
2. Limit thermostat
3. Tank heater
4. Temperature control
5
Remedy
Refer to Service – safety overflow switch
for testing procedures.
Check plumbing and shut-off valves.
(A) Direction of flow arrow must be point-
ing towards dispenser.
(B) Remove the strainer/flow control and
check for obstructions. Clear or replace.
Refer to Service – electronic controls for
testing procedures.
Refer to Service – solenoid valve for test-
ing procedures.
Refer to Service – solenoid valve for test-
ing procedures.
Refer to Service – electronic controls for
testing procedures.
Refer to Service – safety overflow switch
for testing procedures.
Refer to Service – limit thermostat for
testing procedures.
Refer to Service – tank heater for testing
procedures.
Refer to Service – electronic controls for
testing procedures.
42311 071310