Antunes DFWF-250 User Manual
START/STOP
PROGRAM
DOWN
UP
POWER
DFW series
deluxe food warmer
owner’s manual
Manufacturing Numbers:
9100101, 9100102, 9100103, 9100104,
9100105, 9100106, 9100107, 9100111,
9100112, 9100113, 9100114, 9100115,
9100116, 9100118, 9100121, 9100122,
9100123, 9100124, 9100125, 9100126,
9100128, 9100131, 9100132, 9100133,
9100134, 9100135, 9100136, 9100146,
9100147, 9100156
www.ajantunes.com
P/N 1010678 Rev. K 08/12
Table of Contents
General .................................................. 2
Warranty Information ............................. 2
Service/Technical Assistance ................... 2
Important Safety Information ................. 3
Warnings ................................................ 3
Specifications ......................................... 4
Shipping Weight ..................................... 4
Capacities ............................................... 4
Installation ............................................. 5
Plumbing ................................................ 5
General information ............................... 6
Operating Instructions ............................ 6
Programming ......................................... 7
Hi-Limit Reset Button ............................. 8
Fault Codes ............................................8
Diagnostic LEDs ...................................... 8
Daily Maintenance ................................. 8
Monthly Maintenance ............................ 9
Troubleshooting...................................... 11
Cooking Guide ....................................... 14
Replacement Parts ..................................15
Replacement Parts
– DFW/DFWT-100/150 ...........................16
Replacement Parts
– DFW/DFWT-200/250 ............................ 18
Replacement Parts
– DFWF-250 ONLY ................................ 20
Wiring Diagram ...................................... 22
Limited Warranty .................................... 24
IMPORTANT
A.J. Antunes & Co. 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 previously purchased
equipment.
IMPORTANT
Keep these instructions for future reference. If the unit changes ownership,
be sure this manual accompanies the
equipment.
GENERAL
The Deluxe Food Warmer (steamer) produces a
steam using plain tap water for quick heating
and reconstituting of food items. Simple pushbutton action delivers a shot of water that is
immediately converted into steam. Because
the amount of steam is consistent, it removes
the guesswork and produces a uniform finish
from one operator to the next.
This manual provides the safety, installation,
and operating procedures for the Deluxe Food
Warmer (steamer). We recommend that all
information contained in this manual be read
prior to installing and operating the unit.
Your Deluxe Food Warmer (steamer) is manufactured from the finest materials available
and is assembled to Roundup’s strict quality
standards. This unit has been tested at the
factory 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 immediately 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 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.
SERVICE/TECHNICAL
ASSISTANCE
If you experience any problems with the
installation or operation of your unit, contact
your local Roundup Authorized Service Agency.
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 Number
Serial Number
Manufacturing Number
Use only genuine Roundup replacement parts
in this unit. Use of replacement parts other
than those supplied 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.
Visit www. ajantunes.com or contact the factory at 1-630-784-1000 to locate your nearest
Authorized Service Agency.
Refer to the service agency directory packaged
with your manual and fill in the information
below.
Authorized Service Agency
Name
Phone Number
Address
2
P/N 1010678 Rev. K 08/12
IMPORTANT SAFETY
INFORMATION
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 intended use as described in
this manual. Do not use corrosive
chemicals in this equipment.
• Do not operate this equipment if it
has a damaged 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 your
nearest 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.
• Turn the power off, unplug the power
cord, 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 letters followed by the abbreviated HCS (Hazard
Communication Standard). See Hazard
Communication Standard manual for
the appropriated 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 receptacle 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 applicable codes.
• Do not clean this appliance with a
water jet.
WARNINGS
Be advised of the following warnings when
operating and performing maintenance on
this unit.
• If the supply cord is damaged, it must
be replaced by the manufacturer or its
service agent or a similarly qualified
person in order to avoid a hazard.
• 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.
• Electrical ground is required on this
appliance.
• Check with a qualified electrician if
you are in doubt as to whether the
appliance is properly grounded.
• If a chemical cleaner is used, be sure
it is safe to use on cast aluminum.
Observe all precautions and warnings
on product label.
• Inspection, testing, and repair of electrical equipment should only be performed by qualified service personnel.
• 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).
• On direct water hook-up units, water
pressure must not exceed 30 psi (2.1
kg/cm2 or 207 kPa). Higher water
pressures will cause poor performance, excessive condensation, and
flooding of the Steam Generator. To
reduce water pressure, install a water
pressure regulator and set water pressure to 20–30 psi (1.4–2.1 kg/cm2 or
138–207 kPa). Contact your equipment supplier to purchase a Water
Pressure Regulator.
• To ensure proper steaming characteristics, some calcium/mineral deposits
must be present on the generator
surface. If, during cleaning, the surface
does become free of calcium/mineral
deposits, add plain tap water to the
surface and allow it to boil off. This
may have to be repeated several times
to ensure proper steaming characteristics by creating a thin layer of deposits
on the surface.
• Do not use a sanitizing solution or
abrasive materials. The use of these
may cause damage to the stainless
steel finish.
• Chlorides or phosphates in cleaning 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 permanent
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 with soap, ammonia detergent, and water.
• Stains and spots should be
sponged 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.
P/N 1010678 Rev. K 08/12
3
SPECIFICATIONS
A
S
D
L
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T
E
CM
O
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N
N
I
T
A
T
C
T
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US
E
D
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T
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C US
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K
Model &
Mfg. No.
DFW-100
9100101
DFW-100
9100102
DFW-100
9100103
DFW-150
9100104
DFW-150
9100105
DFW-150
9100106
DFW-150
9100107
DFW-200
9100111
DFW-200
9100112
DFW-200
9100113
DFW-250
9100114
DFW-250
9100115
DFW-250
9100116
DFW-200
9100118
DFWT-100
9100121
DFWT-100
9100122
DFWT-100
9100123
DFWT-150
9100124
DFWT-150
9100125
DFWT-150
9100126
DFWT-150
9100128
DFWT-200
9100131
DFWT-200
9100132
DFWT-200
9100133
DFWT-250
9100134
DFWT-250
9100135
DFWT-250
9100136
DFWF-250
9100146
DFWF-250
9100147
DFWF-250
9100156
Volts Watts Amps Hertz
120 1800 15 50/60
120 1500 12.5 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1500 12.5 50/60
230 2800 12.2 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1500 12.5 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1500 12.5 50/60
230 2800 12.2 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1800 15 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1800 15 50/60
230 2800 12.2 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1800 15 50/60
230 2800 12.2 50/60
120 1800 15 50/60
120 1800 15 50/60
230 2800 12.2 50/60
208 3300 15.8 50/60
208 3300 15.8 50/60
230 3300 14.3 50/60
Plug
Description
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-15P
15 Amp, 120 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-15P
15 Amp, 120 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-15P
15 Amp, 120 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-15P
15 Amp, 120 Volt
CEE 7/7
16 Amp. 250 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-20P
20 Amp. 120 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-20P
20 Amp. 120 Volt
CEE 7/7
16 Amp. 250 Volt
IEC-309
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-20P
20 Amp. 120 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 5-15P
15 Amp, 120 Volt
NEMA 5-20P
20 Amp. 120 Volt
CEE 7/7
16 Amp. 250 Volt
NEMA 6-20P
20 Amp. 250 Volt
NEMA 6-20P
20 Amp. 250 Volt
CEE 7/7
16 Amp. 250 Volt
A
B
C
Model No.
Width
(A)
Depth
(B)
Height
(C)
DFW-100
DFW-200
DFW-150
16 1/2"
(419 mm)
17 1/4"
(438 mm)
8 1/4"
(209 mm)
DFW-250
DFWT-100
DFWT-200
DFWT-150
20"
(508 mm)
17 1/4"
(438 mm)
8 1/4"
(209 mm)
DFWT-250
DFWF-250
26 7/8"
(682 mm)
17 1/4"
(438 mm)
9 7/16"
(240 mm)
SHIPPING WEIGHT
DFW-100 Series 40 lbs (18.2 kg)
DFW-200 Series 40 lbs (18.2 kg)
DFWT-100 Series 54 lbs (24.5 kg)
DFWT-200 Series 54 lbs (24.5 kg)
DFWF-250 Series 75 lbs (33.6 kg)
CAPACITIES
DFW Series 2-7/8” (7.3 cm) Deep Half-size steam table pan
DFWT Series 2-7/8” (7.3 cm) Deep Two-third-size steam
table pan
DFWF Series 4” (10.2 cm) Deep Full-size steam table pan
Model &
Mfg. No.
DFW-100
DFW-150
DFW-200
DFW-250
DFWT-100
DFWT-150
DFWT-200
DFWT-250
DFWF-250
Agency Approvals
4
P/N 1010678 Rev. K 08/12
INSTALLATION
NOTE: When placing the unit, make sure
to provide at least 3 inches of space on
all sides of the unit.
1. Remove unit and all packing materials
from shipping carton.
2. The unit should come with the items
listed below:
• Owner’s Manual
• Authorized Service Agency Directory
• Inlet Hose Assembly (DFW/DFWT/
DFWF-200/250 only).
NOTE: If any parts are missing or damaged, contact Antunes Technical Service
IMMEDIATELY at 1-877-392-7854 or
1-630-784-1000.
3. Remove all packing materials and
protective coverings from the unit.
4. Remove and wash the Pan, Trivet, and
Diffuser in soap and water. Rinse with
clean water and allow to air dry.
NOTE: The steam generator surface
(Figure 6) will have a white coating of
artificial lime deposits. This coating is
necessary for steaming characteristics.
5. Wipe all surfaces of the unit with a
hot damp cloth.
NOTE: Do NOT use a dripping wet cloth.
Wring out before use.
6. Re-install Pan, Trivet, and Pan Diffuser.
When placing the unit into service, pay attention to the following guidelines.
• Make sure to provide at least 3 inches
of space on all aides of the unit.
• Make sure the power switch is off and
the unit is at room temperature before
plugging in the power cord.
• Do not block or cover any openings
on the unit.
• Do not immerse the power cord or
plug in water.
• Keep the power cord away from
heated surfaces.
• Do not allow the power cord to hang
over edge of table or counter.
Plug the power cord into the appropriate
power outlet. Refer to the specification
plate for the proper voltage.
1. With the power off, place the unit on a
sturdy, level surface.
2. Ensure the line voltage corresponds to
the stated voltage on the specification
label and power cord warning tag.
3. Connect the unit to the power supply.
Connect Quick
Disconnect
Cold
Water
Flow
Flexible Nylon Braided
1/4 " I.D. Tubing (Not Supplied)
Shut Off Valve
(Not Supplied)
Water Pressure Regulator
& Strainer Assy. (P/N 7000314)
Disconnect
Worm
Clamp
Inlet Hose & Strainer
Assy. (Supplied)
Quick
Insert
Insert Here
Figure 1. Connecting Water Supply to DFW/DFWT/DFWF-200/250
PLUMBING
DFW models are designed to use cold tap
water. Distilled water may be used to reduce
calcium/mineral deposit buildup and reduce
maintenance costs.
MODELS DFW/DFWT-100/150
The DFW/DFWT-100/150 models have a selfcontained water tank. To fill the tank:
1. Open the tank cover on the top of
the unit.
NOTE: Make sure the filter inside the tank
is installed properly.
2. Pour in cold tap water. The tank will
hold approximately 3 quarts (2.81
liters). Do not overfill the tank.
3. Close the tank cover.
MODELS DFW/DFWT/DFWF-200/250
The DFW/DFWT/DFWF-200/250 models require
a direct cold water hookup. A water inlet hose
and strainer assembly (Figure 1) is supplied.
Incoming water is controlled by a normally
closed solenoid valve located inside the
steamer’s electrical housing.
1. Turn off the water valve (not supplied)
that provides water to the unit.
2. Connect the 1/4" (6.5 mm) ID flexible
tubing to the outlet side of the water
pressure regulator and secure using
the worm clamp.
NOTE: A Water Pressure Regulator must
be installed. Failure to do so will result
in poor steaming and possible flooding.
For a single steamer, use Water Pressure
Regulator P/N 7000314. For two adjacent
steamers, use Water Pressure Regulator
P/N 7000235.
3. Turn the water valve on.
4. Over a bucket, press and hold
the white plastic tip on the Quick
Disconnect Insert (Figure 1) until a
good, steady water flow is noted (this
will purge all air out of the line).
5. Release and note the pressure on the
water pressure regulator gauge. It
should read 20-25 psi. Adjust the pressure by pulling the black knob upwards
and turning it clockwise to increase
or counter-clockwise to decrease the
water pressure. Push the knob down to
lock it in place.
NOTE: When adjusting the knob, you must
relieve the existing pressure by pressing
the plastic tip on the Quick Disconnect
Insert for 3 seconds. This allows the newly
set pressure to register on the gauge.
Repeat this until the gauge reads 20–25
psi.
6. Push the Quick Disconnect Insert into
the fitting at the rear of the unit until
it clicks into place (Figure 1).
CAUTION
Water pressure must not exceed 30 psi (2.1
kg/cm2 or 207 kPa). Higher water pressures
may cause poor performance or flooding.
To reduce water pressure, install a water
pressure regulator, and set water pressure to
20–25 psi (1.4–1.7 kg/cm2 or 138–172 kPa).
P/N 1010678 Rev. K 08/12
5
POWER
GENERAL INFORMATION
READY
UP DOWN PROGRAM START/STOP
POWER
ALL MODELS
When the OPERATE button is pressed, power
is supplied to the water pump (Water Tank
models) or solenoid valve (Direct Water
Hookup models). The pump/solenoid operates and water sprays onto the heated steam
generator. The water flashes immediately into
steam and steams the product.
TIMER MODELS DFW/DFWT/DFWF–
150/250 EXCEPT DFWF-250 WITH
MFG. NO. 9100147
On Timer Models, one of two operational modes
can be used: Single Shot or Timed Cycle.
Single Shot
The OPERATE button is pressed and released
to initiate a single steam shot. The Control
Board applies power to the water pump/solenoid and a shot of steam occurs.
Timed Cycle
The control is used to set the desired steam
time (up to 99 minutes, 59 seconds). When
the START/STOP button (Figure 3) is pressed,
the Control Board applies power to the water
pump/solenoid at regular intervals for the
duration of the displayed cycle time. The display counts down to zero, sounds an audible
signal when the cycle is complete, and then
reverts back to the original programmed cycle
time. The unit is ready for the next cycle when
the green ready light is on.
IMPORTANT: Timer Models are factory programmed for the following recommended
settings:
• Total Cycle Time = [15.00] (15 minutes)
(Range: 3 sec. to 99 mins 59 secs)
• Shot Interval Time (SHO) = [00:20] (20
seconds)
(Range: 3 secs to 5 mins 59 secs). 20
seconds is recommended.
• Water Volume (H2O) =
DFW/DFWT/DFWF-250 - [0_50]
DFW/DFWT-150 - [0_80]
(Range: 0.10 seconds to 2.50)
The above settings convert approximately 3/4
oz. (25 milliliters) of water into to steam every
20 seconds for 15 minutes. To change any of
these settings see the appropriate Operating
Instructions for your specific unit.
WARNING
To avoid injury, be careful when opening top
cover. Be sure to allow steam to escape
before putting hands or face over the
steamer.
OPERATING INSTRUCTIONS
NON-TIMER MODELS
1. Turn the power on (Figure 2).
2. Allow the unit to preheat for approximately 30 minutes.
NOTE: Do NOT push the OPERATE button
during warm-up.
3. Open the top cover and place the
product to be steamed onto the trivet,
then close the cover.
4. Press the OPERATE button for 1 second then release and wait 20 seconds
for the steam to penetrate the product. Repeat if product requires more
steam.
NOTE: Pressing and holding the OPERATE
button for longer than 1 second at a time,
and/or too often (before 20 seconds), will
flood out the Generator surface (Figure 6)
and result in poor steaming.
5. Remove steamed product.
TIMER MODELS
1. Turn the power on (Figure 3).
2. Allow the unit to preheat for approximately 30 minutes.
IMPORTANT: The flashing green Ready
Light will become steady when the unit is
up to temperature and ready to be used.
IMPORTANT: Do NOT push the OPERATE
button during warm-up. The flashing
green Ready Light indicates unit is not up
to temperature.
3. Open the top cover and place the
product to be steamed onto the trivet,
then close the cover.
4. Single Shot: Press the OPERATE but-
ton for 1 second then release and wait
20 seconds for the steam to penetrate
the product.
Timed Cycle: Press the START/STOP
button to begin the steaming cycle.
Display will count down to zero.
5. Remove steamed product.
Figure 2. Control Panel
(Non-Timer Models)
Figure 3. Control Panel
(Timer Models)
Operate
Button
Power
Switch
Ready Light
Message
Display
Start/Stop
Button
Operate
Button
Power Switch
6
P/N 1010678 Rev. K 08/12
PROGRAMMING
READY
UP DOWN PROGRAM START/STOP
POWER
1500
READY
UP DOWN PROGRAM START/STOP
POWER
15
READY
UP DOWN PROGRAM START/STOP
POWER
00
READY
UP DOWN PROGRAM START/STOP
POWER
SHO
READY
UP DOWN PROGRAM START/STOP
POWER
00
READY
UP DOWN PROGRAM START/STOP
POWER
20
READY
UP DOWN PROGRAM START/STOP
POWER
H2O
READY
UP DOWN PROGRAM START/STOP
POWER
0_80
CYC (Total Cycle Time) refers to the total
amount of steaming time set for the product.
SHO (Shot Interval Time) is the time set
between shots of steam during a complete
cycle.
H2O Setting (Steam Shot Time) is used to
adjust the water volume used during each
pump/solenoid operation.
The amount of steam produced by your
Deluxe Food Warmer (steamer) depends on
the amount of water sprayed onto the steam
generator.
Flooding of the Generator may occur if the
H2O setting is set too high. To prevent this
from occurring, the Shot Interval Time (SHO)
may be increased to allow more time for
generator heat recovery. Adjustments should
be made to both values to determine the optimum settings for your cooking needs.
To program the control, refer to Figure 4 and
use the following procedure in sequence:
1. Turn the power on. The display shows
the factory programmed Total Cycle
Time in minutes and seconds (Item A,
Figure 4).
2. Press and release the PROGRAM
button to change the control from
Operation to Program mode.
3. To change the Total Cycle Time in minutes, use the UP or DOWN ARROW
buttons to change the time (Item B,
Figure 4).
4. Press and release the PROGRAM button again and use the UP or DOWN
ARROW buttons to change the Total
Cycle Time in seconds (Item C, Figure
4).
5. To change the SHO factory settings,
make sure the control is in Program
mode, then press and hold the two
ARROW buttons simultaneously for
1-2 seconds and then release. SHO will
be displayed (Item D, Figure 4).
6. Press and release the PROGRAM button and use the UP or DOWN ARROW
buttons to change the SHO setting in
seconds (Item E, Figure 4).
NOTE: 20 seconds is recommended.
7. Press and release the PROGRAM button again and use the UP or DOWN
ARROW buttons to change the SHO
setting in minutes (Item F, Figure 4).
NOTE: 00 minutes is recommended.
8. Press and release the PROGRAM
button again and “H2O” is displayed
(Item G, Figure 4).
9. To change the H2O setting, press and
release the PROGRAM button again to
display the setting (Item H, Figure 4).
Use the UP or DOWN ARROW buttons
to increase or decrease the time.
NOTE: Recommended settings are :
• DFW/DFWT/DFWF-250 [0_50]
• DFW/DFWT-150 [0_08]
10. Press either the START/STOP or
OPERATE button to store the changes
and to exit the Program mode.
NOTE: The START/STOP or OPERATE button
may be pressed at any time during programming to store the changes and exit
the Program mode.
NOTE: If no change is made within 5 seconds at any time during the programming
process, all changes made up to that point
are stored in memory and the control
reverts to the Operation mode.
A. Total Cycle Time
E. SHO Time Seconds E. SHO Time Minutes
P/N 1010678 Rev. K 08/12
B. Total Cycle Minues C. Total Cycle Seconds
G. H2O Cycle G. H2O Setting
Figure 4. Control Programming Sequence
7
D. SHO Cycle
Reset Button
Cap
DIAGNOSTIC LEDS
TIMER MODELS
This control board has 4 diagnostic LEDs
described below.
CAUTION
Do not use a sanitizing solution or abrasive
materials. The use of these may cause damage to the stainless steel finish.
Figure 5. Hi-Limit Reset Button
HI-LIMIT RESET BUTTON
A hi-limit thermostat will turn off electrical
power to the heater and control circuits if the
unit overheats. To reset the thermostat, allow
sufficient time (about 45 minutes) for the unit
to cool down, remove the cap and press the
red reset button located on the rear of the
unit (Figure 5).
If the unit requires continuous resetting,
contact your Authorized Service Agency.
FAULT CODES
When the programming parameters for
Minutes, Seconds, SHO, or H2O have been
inadvertently changed to a setting above or
below their limits, the unit displays the “ERR”
fault code. If this fault code appears, you
must clear these settings using the following
procedure.
1. Turn the power off.
2. Press and hold the PROGRAM and
START/STOP buttons simultaneously.
3. Turn the unit on while holding the
buttons. Release the buttons when the
unit stops beeping.
NOTE: Repeat steps 1 through 3 if the
unit still displays the “ERR” fault code.
4. The display will now register 15:00.
NOTE: It is recommended that the SHO
and H2O settings be adjusted to the
recommended settings shown in the
Programming section of this manual.
Green (Program): When lit, indicates the unit
is in Program mode.
Yellow (Audio): When lit, indicates 10-15
VDC is being supplied to the audio signal. The
audio signal will sound and the LED will be lit
for approximately 3 seconds.
Red (Heat): When lit, indicates the unit is
calling for heat by supplying 10-15 VDC to the
solid state relay. When off, indicates the generator surface is up to temperature.
Green (H2O): When lit, indicates that 24
VAC is being supplied to operate the solenoid
valve used in DFW/DFWT/DFWF-250 units or
to the water pump used in the DFW/DFWT150 units.
NOTE: This LED is only lit for approximately 1 second.
NON-TIMER MODELS ONLY
This control board has 2 diagnostic LEDs
described below.
Yellow (CR2): If lit, indicates the thermistor
probe is disconnected or open. The thermistor
should be 100k ohms +/- 2% at room temperature.
NOTE: The unit will not call for heat. This
LED should NOT be lit during normal
operation.
Red (CR4): When lit, indicates that the unit is
calling for heat by supplying 15-20 VDC to the
solid state relay. When off, indicates that the
Generator surface is up to temperature.
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
all the unit to cool down before performing
any service or maintenance.
WARNING
Be sure to follow all the precautions, procedures, and safety steps listed in the Important
Safety Information section of this manual.
DAILY MAINTENANCE
NOTE: Frequency of cleaning is determined by water conditions, usage and
water filter systems.
1. Turn the power off, unplug the power
cord, and allow the unit to cool down
before proceeding.
2. Check the water pressure regulator
gauge (DFW/DFWT/DFWF-200/250
units only) and verify that it reads
20–25 psi (1.4–1.7 kg/cm2 or 138–
172 kPa). If not, adjust the water pressure as described in the Installation
section of this manual. Check the
rear water Quick Disconnect Fitting
and Hose Clamp for leakage. Tighten
clamps or replace parts if needed.
3. Remove the trivet and pan (Figure 6).
4. Wash items in hot, soapy water and
then rinse and wipe dry.
5. Wipe down the top cover, gasket, and
the entire exterior of the unit (Figure
6) with a clean, hot, damp cloth (not
dripping wet) and wipe dry.
6. Re-install diffuser, pan and trivet.
NOTE: Allow top cover to remain open
overnight.
NOTE: Failure to properly clean and dry
the above mentioned items may result
in the accumulation of water/moisture
overnight. This may lead to permanent
damage to the equipment’s finish and its
accessories. This damage is not covered
by warranty.
8
P/N 1010678 Rev. K 08/12
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