Troubleshooting - Bunn 392 Operating And Installation Manual

A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems
encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic
Technical Service Department.
• Testing, and repair of electrical equipment should be performed only by qualified service personnel.
• All electronic components have 120 volt AC or low voltage DC potential on their terminals. Shorting of ter-
minals or the application of external voltages may result in electrical shock.
• This brewer is heated at all times. Keep away from combustibles.
WARNING – • Exercise extreme caution when servicing electrical equipment.
• Unplug the brewer when servicing.
• Follow recommended service procedures
PROBLEM
Beverage overflows decanter
Weak beverage
Dry coffee grounds remain in the
funnel

TROUBLESHOOTING

PROBABLE CAUSE
1. Decanter
1. Filter Type
2. Coffee Grind
3. Sprayhead
4. Funnel Loading
5. Water Temperature
1. Funnel Loading
Page 6
REMEDY
The decanter must be completely
empty before starting a brew
cycle.
BUNN paper filters must be used
®
for proper extraction.
A fine or drip grind must be used
for proper extraction.
A six-hole stainless steel spray-
head must be used for proper
extraction.
The BUNN paper filter must be
®
centered in the funnel and the
bed of ground leveled by gentle
shaking.
Place an empty funnel on an empty
dispenser beneath the sprayhead.
Initiate a brew cycle and check the
water temperature immediately
below the sprayhead with a ther-
mometer. The reading should not
be less than 195°F (91°C). Adjust
the control thermostat to increase
the water temperature. Replace if
necessary.
The BUNN paper filter must be
®
centered in the funnel and the
bed of grounds leveled by gently
shaking.
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