Unox MINDMaps BAKERTOP - WF27 - Lack of Water or Valve EL1 Troubleshooting

OVEN

Maybe chemical is in
the cooking chamber
WF27 lack of water
or EL1 or EG1
Measure the
pres sure
downstream the
pres sure reducer
when the oven is
cleaning
YES NO
Measure the
pres sure upstream
the pres sure
reducer
NO
Th e pres sure doesn’t match
the UNOX technical
specificaons
NO
Replace the power
board
Is the tap water
open?
NOOpen the tap water
YES
Replace the
pres sure reducer
Replace the EL1
valve
Test 3
The oven checks if
there is water, if EL1
does not open or if EG1
does not close
YES
Replace the power
board
NO
YES
Replace the EG1
valve
NO
NO
Does the alarm
disapear?
YES
End
NO
Replace the
pres sure switch
EL1 is the most probable
cause of this alarm
YES
Replace the power
board
Do you have
a
value of pressure
in the range 1,5 - 2 bar
(21.8 – 29 psi)?
Measure with the
mulmeter set to V AC if the
power board supplies 230 V AC
to the
connector of the
Measure with the
mulmeter set to V AC if the
power board supplies 230 V AC
to the
connector of the water
solenoid.
Is the
EG1 supplied?
Take out the
EG1 valve and check
if it is blocked
open by
blowing through
it.
Is the valve
open?
Test if the
pres sure switch closes
the circuit with the
mulmeter set to ohm.
Does it close the
circuit?
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Update the software with
the latest version available
and run a washing program.
SUSPENDED
176