TROUBLESHOOTING (cont.)

 

 

Problem

Possible Cause

Troubleshooting Procedures

Spitting or unusual steaming from

3. Electronic control board

Perform the previous procedure

sprayhead or air vents. (Water too

 

for testing triacs. If the voltage

hot) (cont.)

 

measured is very low or zero, then

 

 

substitute a control board known to

 

 

be in good working order.

Inconsistent beverage level in

1. Strainer

(A) Direction of flow arrow must be

server.

 

pointing towards the brewer.

 

 

(B) Remove the strainer and check

 

 

for obstructions. Clear or replace.

 

2. Improper water pressure

Check operating water pressure to

 

 

the brewer. It must be between 20

 

 

and 90 psi (138 and 620 kPa).

 

3. Brew Valve

Test the Brew Valve. Refer to Testing

 

 

Individual Components. Turn the

 

 

valve on for 30 seconds and collect

 

 

the water dispensed from the spray-

 

 

head. Repeat the test several times

 

 

to confirm a consistent volume of

 

 

dispensed water. If not consistent,

 

 

check the valve, tubing and spray-

 

 

head for lime buildup.

 

4. Bypass Valve

If bypass is being used on the

 

 

inconsistent brewing recipe, test

 

 

the Bypass Valve. Refer to Testing

 

 

Individual Components. Turn the

 

 

valve on for 30 seconds and collect

 

 

the water collected from the bypass

 

 

opening. Repeat the test several

 

 

times to confirm a consistent volume

 

 

of dispensed water. If not consistent,

 

 

check the valve, tubing and bypass

 

 

opening for lime buildup.

 

5. Lime buildup

Inspect for lime buildup that could

 

 

block the tank, tank fittings, tubing,

 

 

valves and sprayhead.

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Image 48
Bunn S/N SNG0033000 & UP Inconsistent beverage level Strainer, Server Pointing towards the brewer, Improper water pressure