Diagnostics - Bunn Axiom Series Service & Repair Manual

DIAGNOSTICS

MESSAGE
"CHECK SPRAYHEAD FOR LIME" -
"CHECK FITTINGS FOR LIME"
"WARNING INACCURATE FLOW"
- "TOO MUCH LIME PLEASE RE-
PAIR"
"WARNING VERY LOW FLOW" -
"PLEASE REPAIR"
Temperature Too Low
Heating Time Too Long
Fill Time Too Long
Temp Sensor Out Of Range, Check
For Bad Connections
Temp Sensor Out Of Range, Check
Wire For Shorts
PROBABLE CAUSE
1. Lime buildup in sprayhead
2. Lime buildup in brew valve
3. Lime buildup in brew tank
1. Lime buildup in sprayhead
2. Lime buildup in brew valve
3. Lime buildup in brew tank
1. Lime buildup in sprayhead
2. Lime buildup in brew valve
3. Lime buildup in brew tank
1. Water temperature in the tank
does not meet the ready tempera-
ture.
1. Tank Heater failure.
2. Control Board/Thermistor fail-
ure
1. Water shut off to brewer
2. Supply line too small or ob-
structed
3. Inlet Solenoid failure
4. Control Board Failure
5. ON/OFF switch is OFF
1. Temperature Sensor Probe
open
1. Temperature Sensor Probe
wire(s) shorted
Page 9
REMEDY
Clean sprayhead
Clean valve
Clean tank
Clean sprayhead
Clean valve
Clean tank
Clean sprayhead
Clean valve
Clean tank
A) Wait for the brewer to heat to
the proper temperature.
B) Disable the BREW LOCKOUT
function. Refer to programming
section for procedure.
Replace or repair as needed
Replace or repair as needed
Check water supply shut-off
Replace or repair as needed
Replace or repair as needed
Replace or repair as needed
Turn switch ON
Replace or repair as needed
Replace or repair as needed
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