Antunes RS-250 User manual

1
2
®
Cheese Melter
Owner’s Manual
Model RS-250
Manufacturing Numbers:
9100618
www.antunes.com CAUTION: Read all instructions before using the unit.
Original Instructions
P/N 1010983 Rev. F 05/19

CHEESE MELTER
2P/N 1010983 Rev. F 05/19
®
TABLE OF CONTENTS
General
The Cheese Melter produces steam using ordinary tap
water for quick heating of food items. Simple push-
button action delivers an adjustable impulse of steam.
Because the amount of steam is consistent, it removes
the guesswork and produces a uniform finished product
from one operator to the next.
This manual provides the safety, installation, operating,
and basic troubleshooting procedures for the Cheese
Melter. We recommend that all information contained
in this manual be read prior to installing and operating
the unit.
Your Cheese Melter is manufactured from the finest
materials available and is assembled to Antunes’ strict
quality standards. This unit has been tested at the fac-
tory to ensure dependable trouble-free
operation.
Warranty Information
Please read the full text of the Limited Warranty in this
manual.
If the unit arrives damaged, contact the carrier imme-
diately and file a damage claim with them. Save all
packing materials when filing a claim. Freight damage
claims are the responsibility of the purchaser and are
not covered under warranty.
The warranty does not extend to:
• Damages caused in shipment or damage as a
result of improper use.
• Installation of electrical service.
• Normal maintenance as outlined in this manual.
• Malfunction resulting from improper maintenance.
• Damage caused by abuse or careless handling.
• Damage from moisture into electrical
components
• Damage from tampering with, removal of, or
changing any preset control or safety device.
OWNER INFORMATION
Owner Information .....................................................2
General......................................................................2
Warranty Information .................................................2
Service/Technical Assistance ....................................3
Important Safety Information ....................................4
Specifications .............................................................6
Electrical Ratings.......................................................6
Electrical Cord & Plug Configurations .......................6
Dimensions................................................................6
Installation...................................................................7
Unpacking..................................................................7
Equipment Setup.......................................................8
Operation.....................................................................9
Operating Instructions ...............................................9
Programming ............................................................10
Factory Settings.......................................................10
General Information.................................................10
Programming the RS-250........................................10
Maintenance..............................................................14
Maintenance Schedule............................................14
Daily Cleaning .........................................................14
Daily Steam Generator Maintenance ......................16
Checking and Cleaning Water Strainer...................18
Flushing and Cleaning Water Solenoid...................18
Diagnostics ...............................................................19
Troubleshooting .......................................................21
Wiring Diagram.........................................................24
Replacement Parts ...................................................25
Limited Warranty ......................................Back Cover
IMPORTANT! Keep these instructions for future reference. If the unit changes
ownership, be sure this manual accompanies the equipment.

3
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
Use only genuine Antunes replacement parts in this
unit. Use of replacement parts other than those sup-
plied by the manufacturer will void the warranty. Your
Authorized Service Agency has been factory trained
and has a complete supply of parts for this unit.
You may also contact the factory at 1-630-784-1000 if
you have trouble locating your local Authorized Service
Agency.
Service/Technical Assistance
If you experience any problems with the installation
or operation of your unit, contact your local Antunes
Authorized Service Agency. They can be found in the
service agency directory packaged with the equipment.
Fill in the information below and have it handy when
calling your Authorized Service Agency for assistance.
The serial number is on the specification plate located
on the rear of the unit.
Purchased From:
Date of Purchase:
Model No.:
Serial No.:
Mfg. No.:
Refer to the service agency directory and fill in the
information below:
Authorized Service Agency
Name:
Phone No.:
Address:
OWNER INFORMATION (continued)

CHEESE MELTER
4P/N 1010983 Rev. F 05/19
®
Throughout this manual, you will find the following safety words and symbols that signify important safety issues with
regards to operating or maintaining the unit.
WARNING
GENERAL WARNING. Indicates informa-
tion important to the proper operation of
the equipment. Failure to observe may
result in damage to the equipment and/or
severe bodily injury or death.
CAUTION
GENERAL CAUTION. Indicates informa-
tion important to the proper operation of
the equipment. Failure to observe may
result in damage to the equipment.
WARNING
ELECTRICAL WARNING. Indicates infor-
mation relating to possible shock hazard.
Failure to observe may result in damage
to the equipment and/or severe bodily
injury or death.
WARNING
HOT SURFACE WARNING. Indicates
information important to the handling of
equipment and parts. Failure to observe
may result in personal injury.
IMPORTANT SAFETY INFORMATION
In addition to the warnings and cautions in this manual,
use the following guidelines for safe operation of the
unit.
• Read all instructions before using equipment.
• For your safety, the equipment is furnished with
a properly grounded cord connector. Do NOT
attempt to defeat the grounded connector.
• Install or locate the equipment only for its intend-
ed use as described in this manual. Do NOT use
corrosive chemicals in this equipment.
• Do NOT operate this equipment if it has a dam-
aged cord or plug; if it is not working properly; or
if it has been damaged or dropped.
• This equipment should be serviced by qualified
personnel only. Contact the nearest Antunes
Authorized Service Agency for adjustment or
repair.
• Do NOT block or cover any openings on the unit.
• Do NOT immerse cord or plug in water.
• Keep cord away from heated surfaces.
• Do NOT allow cord to hang over edge of table or
counter.
The following warnings and cautions appear throughout
this manual and should be carefully observed.
• Turn the unit off, disconnect the power source,
and allow unit to cool down before performing any
service or maintenance on the unit.
• The procedures in this manual may include
the use of chemical products. These chemical
products will be highlighted with bold face let-
ters followed by the abbreviated HCS (Hazard
Communication Standard). See Hazard
Communication Standard manual for the appro-
priate Material Safety Data Sheets (MSDS).
• The equipment should be grounded according to
local electrical codes to prevent the possibility of
electrical shock. It requires a grounded recep-
tacle with separate electrical lines, protected by
fuses or circuit breaker of the proper rating.
• All electrical connections must be in accordance
with local electrical codes and any other appli-
cable codes.

5
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
• WARNING ELECTRICAL SHOCK HAZARD.
FAILURE TO FOLLOW THESE INSTRUC-
TIONS COULD RESULT IN SERIOUS INJURY
OR DEATH.
- Electrical ground is required on this appliance.
- Do NOT modify the power supply cord plug.
If it does not fit the outlet, have a proper outlet
installed by a qualified electrician.
- Do NOT use an extension cord with this
appliance.
- Check with a qualified electrician if you are
unsure if the appliance is properly grounded.
• This equipment is to be installed to comply with
the basic plumbing code of the Building Officials
and Code Administrators, Inc. (BOCA) and the
Food Service Sanitation Manual of the Food and
Drug Administration (FDA).
• Water pressure must not exceed 20 psi (1.4 kg/
cm2or 138 kPa). Higher pressure may cause
poor performance or flooding. To reduce water
pressure, install a Water Pressure Regulator and
set to 20 psi (1.4 kg/cm2or 138 kPa). To order a
Water Pressure Regulator from your Authorized
Service Agency, order Antunes part no. 7000235.
• Do NOT clean this appliance with a water jet.
• Do NOT use a sanitizing solution or abrasive
materials. The use of these may cause damage
to the stainless steel finish.
• To ensure proper steaming characteristics, some
mineral deposits must be present on genera-
tor casting. If, during cleaning, the casting does
become free of mineral deposits, add plain tap
water to casting and allow it boil off. This will
ensure proper steaming characteristics by creat-
ing a thin layer of mineral deposits on the casting.
• Chlorides or phosphates in cleansing agents (such
as bleach, sanitizers, degreasers, or detergents)
could cause permanent damage to stainless steel
equipment. The damage is usually in the form of
discoloration, dulling of metal surface finish, pits,
voids, holes, or cracks. This damage is perma-
nent and not covered by warranty:
The following tips are recommended for mainte-
nance of your stainless steel equipment,
- Always use soft, damp cloth for cleaning,
rinse with clear water and wipe dry. When
required, always rub in direction of metal
polish lines.
- Routine cleaning should be done daily using
soap, ammonia detergent, and water.
- Stains and spots should be removed using a
vinegar solution as required.
- Finger marks and smears should be rubbed
off using soap and water.
- Hard water spots should be removed using a
vinegar solution.
IMPORTANT SAFETY INFORMATION (continued)
IMPORTANT
Antunes reserves the right to change specifications and product design without notice. Such revisions
do not entitle the buyer to corresponding changes, improvements, additions, or replacements for previ-
ously purchased equipment.

CHEESE MELTER
6P/N 1010983 Rev. F 05/19
®
SPECIFICATIONS
Electrical Ratings
WARNING
ELECTRICAL SHOCK HAZARD.
FAILURE TO FOLLOW THE INSTRUCTIONS IN
THIS MANUAL COULD RESULT IN SERIOUS
INJURY OR DEATH.
• Electrical ground is required on this appliance.
• Do NOT modify the power supply cord plug. If
it does not fit the outlet, have a proper outlet
installed by a qualified electrician.
• Do NOT use an extension cord with this appliance.
• Check with a qualified electrician if you are unsure
if the appliance is properly grounded.
CAUTION
All electrical connections must be in accordance
with local electrical codes and any other
applicable codes.
Electrical Cord & Plug Configurations
Model &
Mfg. No.
Description Configuration
RS-250
9100618
NEMA 6-20P,
20 Amp.,
250 VAC,
Right Angle Plug
CAUTION
HOT SURFACES
CUIDADO CALIENTE
MISE EN GARDE-CHAUD
HEISSE OBERFLÄCHE
1
2
12.5”
(318 mm)
15.25”
(387 mm)
20”
(508 mm)
Dimensions
Model &
Mfg. No.
Voltage Watts Amps Hertz
RS-250
9100618 208 3300 15.9 50/60

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CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
Unpacking
1. Remove unit and all packing materials from
shipping carton.
2. Open the box. It should contain the follow-
ing items:
• Cheese Melter
• Water Drip Tray
• Water Hookup Kit
• Information Packet
3. Remove information packet.
4. Remove all packing materials and protective
coverings from the unit.
5. Wash all removable parts (Spatula and
Water Drip Tray) in soap and water. Rinse
with clean hot water and allow to air dry.
6. Wipe all surfaces of the unit with a hot damp
cloth.
NOTE: Do NOT use a dripping wet cloth.
Wring out before use.
7. Re-install all removed parts.
INSTALLATION
CAUTION
All electrical connections must be in accordance
with local electrical codes and any other appli-
cable codes.
WARNING
ELECTRICAL SHOCK HAZARD.
FAILURE TO FOLLOW THE INSTRUCTIONS IN
THIS MANUAL COULD RESULT IN SERIOUS
INJURY OR DEATH.
• Electrical ground is required on this appliance.
• Do NOT modify the power supply cord plug. If
it does not fit the outlet, have a proper outlet
installed by a qualified electrician.
• Do NOT use an extension cord with this appliance.
• The unit should be grounded according to local
electrical codes to prevent the possibility of electri-
cal shock. It requires a grounded receptacle with
separate electrical lines, protected by fuses or
circuit breaker of the proper rating.
• Check with a qualified electrician if you are unsure
if the appliance is properly grounded.

CHEESE MELTER
8P/N 1010983 Rev. F 05/19
®
ELECTRICAL
1. Place the unit on a sturdy, level table or
other work surface. Turn the unit off before
proceeding.
2. Ensure that the line voltage corresponds to
the stated voltage on the unit’s specification
label and power cord warning tag (Figure 1).
3. Connect the unit to the power supply.
PLUMBING
NOTE: Cheese Melter models are designed
to use cold tap water. The use of a reverse
osmosis system is strongly recommended to
reduce mineral deposit buildup and reduce
maintenance costs.
The RS-250 requires a direct water hookup. An
installation kit is packed inside the unit.
INSTALLATION (continued)
Figure 1. Warning Labels
208 VAC
ONLY
220-240
VAC ONLY
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS UNIT IS DESIGNED TO
OPERATE ON 220-240 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
THIS UNIT IS DESIGNED TO
OPERATE ON 208 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
WARNING
WARNING
WARNING
WARNING
CAUTION
This equipment is to be installed to comply with
the basic plumbing code of the Building Officials
and Code Administrators, Inc. (BOCA) and the
Food Service Sanitation Manual of the Food and
Drug Administration (FDA).
CAUTION
Water pressure must not exceed 20 psi (1.4
kg/cm2or 138 kPa). Higher water pressure
may cause poor performance or flooding. To
reduce water pressure, install a Water Pressure
Regulator, and set water pressure to 20 psi (1.4
kg/cm2or 138 kPa). To order a Water Pressure
Regulator from your Authorized Service Agency,
order Antunes part no. 7000235.
Equipment Setup
GENERAL
When placing the unit into service, pay attention to
the following guidelines:
• Make sure the unit is off and at room
temperature.
• Do NOT block or cover the openings on the
bottom of unit.
• Do NOT immerse cord or plug in water.
• Keep cord away from heated surfaces.
• Do NOT allow cord to hang over edge of
table or counter.

9
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
1
2
OPERATION
Figure 2. Operating Controls
Message
Display
Operating Instructions
1. Turn the power on (Figure 2).
2. Allow the unit to preheat for approximately
20-30 minutes.
NOTE: During preheating, the display flashes
“LOW”. When unit reaches operating tempera-
ture, the display shows “RDY1” or “RDY2” and
the active channel indicator is lit.
WARNING
To avoid injury, be careful when pulling spatula
out from unit. Be sure to allow steam to escape
before putting hands or face over the unit.
Power
Switch
Operating
Buttons
3. Pull out the Spatula and place the product to
be steamed onto the Spatula Trivet.
4. Push the Spatula fully into the unit.
5. Press and release an Operating Button
(Figure 2) to start the steam cycle. Display will
count down to zero.
6. Remove steamed product.
RDY1

CHEESE MELTER
10 P/N 1010983 Rev. F 05/19
®
PROGRAMMING
General Information
CYC (Total Cycle Time) refers to the total amount
of cooking time set for the product.
RATE (Shot Interval Time) is the time set between
shots of steam during a complete cycle.
SHOT (Steam Shot Time) is used to adjust the
water volume during each solenoid operation or
shot of steam.
The amount of steam produced by your unit
depends on the amount of water sprayed onto the
steam generator. The generator may flood if the
RATE setting is too low or if the SHOT setting is
too high.
To prevent flooding, increase the RATE to allow
more time for generator heat recovery and
decrease the SHOT to reduce the water volume.
Adjustments should be made to both values to
determine the best settings for your cooking needs.
Factory Settings
The RS-250 is factory programmed for the following
default values:
Programming the RS-250
NOTE: CYC, RATE, and SHOT are sequential
operation per channel for all programming (You
must perform all steps for CYC and RATE to
change SHOT).
NOTE: CYC, RATE, and SHOT are only dis-
played momentarily during the programming
sequence after pressing the Program button.
CYC (Total Cycle Time)
1. Turn the unit on. Allow the unit to preheat for
30 minutes.
NOTE: During preheating, the display flashes
“LOW”. When unit reaches operating tempera-
ture, the display shows “RDY1” or “RDY2” and
the active channel indicator light is lit.
RDY1
CH-1 CH-2 RANGE
CYC 21 secs 24 secs 0 sec to
99 mins 59 secs
RATE 7 secs 7 secs 1 sec to
5 mins 59 secs
SHOT 0.21 secs 0.21 secs 0.10 sec to
2.50 secs

11
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
PROGRAMMING (continued)
2. Press the button highlighted below to change
the control from Operation to Program mode.
“CYC” is displayed momentarily. Then press
an Operating Button to change that button’s
settings.
CYC
NOTE: If no change is made within 10 seconds
at any time during the programming process,
all changes made up to that point are stored in
memory and the control reverts to Operation
mode.
3. The unit displays the current setting for total
cycle time in minutes. Use the buttons high-
lighted below to change this setting.
00
4. Press the highlighted button below to accept
the total cycle time in minutes on the display.
00
5. The unit then displays the current setting for
total cycle time in seconds. Use the buttons
highlighted below to change this setting.
21
6. Press the highlighted button below to accept
the total cycle time in seconds on the display.
21

CHEESE MELTER
12 P/N 1010983 Rev. F 05/19
®
RATE (Shot Interval Time)
7. If not in Program mode, press the button
highlighted below. “CYC” will be displayed
momentarily.
CYC
8. Once in Program mode, press and hold both
buttons highlighted below. “RATE” will be dis-
played momentarily.
RATE
9. The unit displays the current RATE setting in
seconds. Use the buttons highlighted below to
then change the setting in seconds.
07
10. Press the highlighted button below to accept
the RATE setting in seconds on the display.
07
PROGRAMMING (continued)

13
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
SHOT (Steam Shot Time)
12. Press the button highlighted below and
“SHOT” will be displayed momentarily.
SHOT
00
11. The unit displays the current RATE setting in
minutes. Use the highlighted buttons below to
change the setting in minutes.
13. Use the buttons highlighted below to change
the Steam Shot Time.
0_21
14. When done, either:
a). Press the selected Operating Button to
store the settings to that button (Pressing this
again will start the steam cycle).
b). Select the other Operating Button for
change and repeat Steps 1-13. Changes
made to the previous channel will automati-
cally be stored.
PROGRAMMING (continued)

CHEESE MELTER
14 P/N 1010983 Rev. F 05/19
®
Maintenance Schedule
NOTE: Frequency of cleaning is determined
by water conditions, usage, and water filter
systems. Recommended water hardness,
or Total Dissolved Solids (TDS), should not
exceed 60 ppm (parts per million).
MAINTENANCE
CAUTION
Do not use a sanitizing solution or abrasive mate-
rials. The use of these may cause damage to the
stainless steel finish.
CAUTION
If a chemical cleaner is used, be sure it is safe to
use on cast aluminum. Observe all precautions
and warnings on product label.
WARNING
Turn the power off, unplug the power cord, and
allow the unit to cool down before performing any
service or maintenance.
CAUTION
Chlorides or phosphates in cleansing agents (e.g.
bleach, sanitizers, degreasers, or detergents)
could cause permanent damage to stainless steel
equipment. The damage is usually in the form of
discoloration, dulling of metal surface finish, pits,
voids, holes, or cracks. This damage is perma-
nent and not covered by warranty. The following
tips are recommended for maintenance of your
stainless steel equipment:
• Always use soft, damp cloth for cleaning, rinse
with clear water, and wipe dry. When required,
always rub in direction of metal polish lines.
• Routine cleaning should be done daily using
soap, ammonia detergent, and water.
• Stains and spots should be removed using a
vinegar solution.
• Finger marks and smears should be rubbed off
using soap and water.
• Hard water spots should be removed using a
vinegar solution.
Daily Cleaning
1. Turn the power off, unplug the power cord, and
allow the unit to cool down before proceeding.
2. Remove the Heat Shield and Spatula.
3. Remove the Drip Pan.
1
2
1
2
1
2

15
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
4. Remove the Vent by lifting it up and away
from the unit.
MAINTENANCE (continued)
5. Wash the Spatula, Drip Pan, and Vent in hot
detergent water and rinse. Allow to air dry.
6. Clean the Chamber of any product spills.
7. Wipe the entire unit with a clean, damp towel.
Allow to air dry.
8. Re-assemble the unit.
1
2
1
2
1
2
1
2

CHEESE MELTER
16 P/N 1010983 Rev. F 05/19
®
MAINTENANCE (continued)
Weekly Steam Generator Maintenance
Your Cheese Melter utilizes an open steam gen-
erator. When introduced, water immediately vapor-
izes and creates a burst of steam, leaving behind
any minerals that had previously been dissolved.
Though a small amount of minerals are necessary
for proper operation, excessive amounts will cause
poor steaming and may permanently damage the
Generator.
1. Turn the power off, unplug the power cord,
and allow the unit to cool.
2. Remove the Heat Shield and Top Cover.
3. Remove the Generator Cover (Wing Nut is
attached to the cover).
4. Remove the Diffuser.
1
2
1
2
1
2
1
2

17
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
MAINTENANCE (continued)
5. Clean the Generator with a wire brush to
remove excess buildup. Wipe off scrapped
flakes with a wet towel.
6. Check all steam holes and the two water
holes. Clean ALL clogged holes using a flat
blade screwdriver.
8. Press the button highlighted below 3 or 4
times to flush the buildup of flakes from the
Generator.
9. Remove the Spatula and wipe off any flakes
before the next use.
7. Re-assemble the unit.
1
2
1
2
Water
Holes
(2 Total)
Steam
Holes
(26 total)
1
2
1
2

CHEESE MELTER
18 P/N 1010983 Rev. F 05/19
®
MAINTENANCE (continued)
Flushing and Cleaning Water Solenoid
The Cheese Melter can be programmed to provide
a much larger volume of water per shot to flush
and clean the Solenoid Base.
NOTE: Based on the water conditions in your
area, the Water Solenoid should be flushed and
cleaned at the same time as when cleaning the
Steam Generator. This procedure should be
performed monthly but could be done weekly
or daily.
To perform the Water Solenoid flushing and clean-
ing on the Cheese Melter, you have to re-program
the shot time on the Operating Button #1. The
standard SHOT setting is 0.21 seconds.
1. Follow the programming instruction in the
Owner’s Manual to change the shot setting to
2.5 seconds. This is the maximum time that
can be programmed.
2. Make sure the unit is up to operating tem-
perature.
3. Run one cycle using the button highlighted
below. The longer SHOT time will generate
a larger volume of water flowing through the
solenoid. This increased volume of water will
flush and clean the Water Solenoid Base.
NOTE: This volume of water will flood the
casting.
Checking and Cleaning Water Strainer
To ensure proper and consistent steaming results,
inspect the water pressure regulator gauge and
strainer cup regularly. If the water pressure on
the gauge has dropped, visually check the clear
plastic strainer cup and clean out the accumulated
debris as follows:
1. Shut off the water supply valve to the unit.
Unscrew the clear plastic strainer cup and
carefully remove the mesh strainer screen.
2. At the sink, gently flush all of the accumu-
lated debris from the strainer cup and mesh
strainer screen. Be especially careful not to
damage the mesh strainer screen.
3. Carefully place the mesh strainer screen into
its seat at the bottom of the clear plastic cup
and confirm that the orange O-ring is prop-
erly seated in its place before screwing the
strainer cup and top back together.
4. Purge the air out of the strainer tubing by
disconnecting the male quick disconnect fit-
ting from the equipment and, over a bucket,
pushing its valve core in until there is a good
water flow.
4. When the cycle is completed, you may want
to run a second cycle. Wait until all of the
water has turned to steam before using the
unit or turning it off.
NOTE: Re-program the water SHOT back to its
previous setting.

19
CHEESE MELTER
P/N 1010983 Rev. F 05/19
®
DIAGNOSTICS
“OPEN” will be displayed when the thermocouple is
damaged or not installed correctly.
Diagnostics
The two-channel controller is also equipped with
diagnostic features. Listed under each drawing is
a brief description of the particular feature. The
control housing mounted on the control board also
contains diagnostic LED’s. They are in three colors
and represent the following:
*Green (Program): When lit, indicates
default settings are being set.
* Yellow (Audio): When lit, indicates power
is being sent to the audio device.
* Red (Heat): When lit, indicates the unit is
calling for heat.
* Green (Water): When lit, indicates that
power is being sent to the water pump or
solenoid.
“HIGH” will be displayed when the Generator tem-
perature exceeds the setpoint temperature by 50°F
(10°C).
“LOW” will be displayed until the Generator
temperature exceeds 250°F (121°C).
HIGH
LOW
OPEN
“PWR” will be displayed when the supply voltage is
lower than 160 VAC or above 265 VAC.
PWR
To check the Generator temperature, press and
hold the button highlighted below. The display will
show the set temperature.
To change the setpoint temperature, press and hold
the two buttons highlighted below simultaneously
for three seconds. Then use those same two but-
tons to raise or lower temperature.
NOTE: Minimum temperature should be 375°F
(191°C).

CHEESE MELTER
20 P/N 1010983 Rev. F 05/19
®
DIAGNOSTICS (continued)
“ERR” will be displayed when there are program-
ming parameter errors. If this message appears,
you may have to clear the current parameters.
To clear the unit’s current programming and reset
the unit to its factory default settings:
1. Turn the unit off.
2. Push the two buttons highlighted below simul-
taneously and continue to hold them both
while turning the unit on. Release once you
hear the unit beep and then stop.
ERR
3. Check the Display:
• If the Display shows “ERR” again, contact
Antunes for technical assistance.
• If the Display appears normal, try both a
single shot and a factory default timed
cycle before re-programming the unit.
Review the Programming section of this manual
(Page 10) and then program the Operating Buttons
according to your cooking requirements.
TEMP
“TEMP” indicates the control cabinet temperature
has exceeded 155°F (68°C), causing the unit to
shut down. If this occurs, the unit must be turned
off for at least 20 minutes so that it can cool off
and reset.
If this condition reoccurs, contact your local
Authorized Service Agency or Antunes Technical
Assistance.
The control board monitors the control cabinet
ambient temperature and records whatever its
highest temperature has been. This information will
help your service technician when troubleshooting
the unit.
To determine what the control cabinet’s highest
temperature has been since it was last reset:
1. Turn the unit off.
2. Press and hold the two buttons highlighted
below while turning the unit on.
3. Record the highest control cabinet tempera-
ture shown on the display and release the
arrow keys.
4. Turn the unit off to preserve this record.
To clear/reset this record, simultaneously press the
two buttons highlighted above (before turning the
unit off). The display will show 33ºF – indicating
that the record has been cleared – and then turn
the unit off.