Unox MINDMaps CHEFTOP User Manual

Symptom Problem Solution
The oven
does not
cook evenly
The P-trap is
not installed or
it is empty
Fill the P-trap by pouring a jar of water in the drain or install the P-trap
The gasket is
damaged
Replace the gasket
The chimney is
clogged
Clean the chimney with a metal brush
The DRY.Maxi
system is open
Set the oven to t = inf, T = 100 °C and 100% steam. Measure the power
supply between PIN N and VENT of the P4 socket of the power board, with
the multimeter set to V AC. Do you have power supply?
■ If yes, replace the power board
■ If not, is the DRY.Maxi valve open?
■ If yes, replace it
■ If not, go on with the troubleshooting
The motors do
not invert the
sense of rotation
Check the setting of the parameter MAX SPEED NO INVERSION
parameter. Is the speed of the motor greater than the value of the
parameter?
■ If
not, it is normal that the motors do not invert the sense of rotation.
Set a higher speed and test the oven again
■ If yes, measure the resistance of the braking element with the
multim-eter set to ohm. Do you have 37.5 Ω and 75 Ω at each red and
yellow braking element respectively?
■ If not, replace the braking element
■ If yes, replace the power board
The temperature
probe placed
close to the fan
/ close to the
bottom of the
cooking chamber
is not calibrated
If you measure a difference lower or equal of 5 °C, between the real
temperature of the cooking chamber and the temperature set, with a
calibrated temperature probe placed close to the one installed close
to the fan guard bottom side of the cooking chamber, you can apply
an OFFSET. See the section “MIND.Maps™ Service and User Menu” to
know how to apply the offset. Therefore, if Tset - Tchamber = +3.1 °C (for
instance Tset = 180 °C and Tchamber = 176,9 °C) you should set -31 in the
back/bottom probe offset to compensate. Thus 0.1 °C equals to 1 in scale
of values.
The
temperature
probes are
switched or
damaged or
the power
board is
defective
Measure if the temperature probe placed close to the fan bottom side of
the cooking chamber, is connected to the P19 – CMB 1 socket of the power
board, while the temperature probe placed close to the door or close to
the ceiling of the cooking cabinet, is connected to the P16 – CMB2 socket
of the power board. Are the temperature probes connected correctly?
■ If not, switch the connection on the power board
■ If yes, measure the resistance of the probe circuit with the multimeter
set to ohm. Do you have 110 Ω at 25 °C (77 °F)?
■ If not, replace the damaged temperature probe
■ If yes, replace the power board
The cooking
chamber has
spots and
smears on
stainless steel
and glasses
212
If the inflow water quality is not in compliance with the technical data
reported in the manual, install the proper water treatment system
The inflow water
hardness is too
high accordingly
with UNOX
specification

Unox MINDMaps CHEFTOP Specifications

General

Brand	Unox
Model	MINDMaps CHEFTOP
Category	Commercial Food Equipment
Language	English