Allard EB120 - Manual (Page 11)

EB120 Advanced Ethanol Boiler 11
control panel is
normal, and
indicator LED for
heating is on, but
there is no steam
output 1. Main circuit board
2. Relay circuit board
3. Heating elements * Change main circuit board
* Change relay circuit board
* Change heat elements
Temperature
displays “LC” Check:
Beer level probe
connection Check connection or change beer level probe.
Temperature
displays “HC” Beer level probe detects
a short circuit 1. Check beer level probe connection
2. Check controller for short circuit
Turn off EB120, and
cooling water
continues to flow
through the system. Check the proportional
solenoid control valve 1. Try turning the system on and off again, or
disconnect the system from the power
connection, and reconnect.
2. Check proportional valve. Clean it or change it
Unplug from power
supply, and cooling
water continues to
flow through the
system. Check:
1. Water inlet valve
2. Circuit board Change circuit board or water inlet valve
Turn off EB120, but
it continues to
operate. Check:
f. Circuit board
g. Controller
h. Relays on accessory
circuit board
i. Water level probe
Unplug or disconnect the unit from power.
DO NOT CONTINUE TO USE WITHOUT FIRST
CONTACTING YOUR DEALER!
Chapter Six: Regular Use and Maintenance
The single biggest problem with boilers is the build up of scale resulting from dissolved solids within the beer.
Scaling can cause the heating elements to fail, the beer level sensors not to function, and premature failure of the
O-rings resulting in leaks from around the elements. The extent of the problem will vary according to the degree
of impurities in the beer.
* IMPORTANT NOTICE: DO NOT ATTEMPT TO RUN ANY MASH OR LIQUID WITH SUSPENDED
IMPURITIES DIRECTLY THROUGH THE EB120 WITHOUT FIRST STRAINING AND FILTERING.
DOING SO WILL CLOG THE BEER PUMP, SOLENOID VALVE, AND BOILER, AND WILL VOID
YOUR WARRANTY. WE RECOMMEND PRE-SCREENING WITH A FINE STAINLESS STEEL
SCREEN, THEN FILTERING WITH AT LEAST A 10-MICRON FILTER BEFORE ALLOWING YOUR
BEER TO BE PUMPED INTO THE EB120.
We also recommend descaling the boiler once every 50 to 100 hours of operation. To descale use a solution of
weak acid crystals (such as citric acid) mixed with water. Citric acid crystals are available in packets for descaling