Bunn CWT Service Manual download pdf (Page 11)

Page 11

TROUBLESHOOTING (cont.)

PROBLEM

Spitting or excessive steaming

(cont.)

Dripping from sprayhead

Water ﬂows into tank continu-

ously (ON/OFF Switch "ON")

Water ﬂows into tank continu-

ously (ON/OFF Switch "OFF")

Beverage overﬂows dispenser

PROBABLE CAUSE

2. Control Thermostat

1. Syphon System

2. Lime Build-up

CAUTION - Tank and tank com-

ponents should be delimed

regularly depending on local

water conditions. Excessive min-

eral build-up on stainless steel

surfaces can initiate corrosive

reactions resulting in serious

leaks.

3. Solenoid Valve (CT, CTF, CWT,

CWTA, CWTB, CWTF, CWTFA,

CWTFB, SINGLE CW & SINGLE

CWF)

1. Timer (CT, CTF, CWT, CWTA,

CWTB, CWTF, CWTFA, CWTFB,

SINGLE CW & SINGLE CWF)

1. Solenoid Valve (CT, CTF, CWT,

CWTA, CWTB, CWTF, CWTFA,

CWTFB, SINGLE CW & SINGLE

CWF)

1.Dispenser

2. Timer (CT, CTF, CWT, CWTA,

CWTB, CWTF, CWTFA, CWTFB,

SINGLE CW & SINGLE CWF)

3. Solenoid Valve (CT, CTF, CWT,

CWTA, CWTB, CWTF, CWTFA,

CWTFB, SINGLE CW & SINGLE

CWF)

REMEDY

Refer to Service - Control Ther-

mostat for testing procedures.

See page 15

The brewer must be level or

slightly lower in front to syphon

properly.

Inspect the tank assembly for

excessive lime deposits. Delime

as required.

Remove the solenoid valve and

clear any obstructions. Rebuild

or replace the valve if necessary.

See page 19

Refer to Service - Timer for test-

ing procedures. See page 24

Remove the Solenoid Valve and

clean any obstruction. Rebuild

or replace the valve if necessary.

See page 19

The dispenser must be com-

pletely empty before starting a

brew cycle.

Refer to Service - Timer for test-

ing procedures. See page 24

Remove the Solenoid Valve and

clean any obstruction. Rebuild

or replace the valve if necessary.

See page 19

10841 020503

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