winholt NHPL-1833-ECOC-2D-DGT Reference manual

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NHPL-1836C-DGT
Operational Maintenance
& Service Bulletin for Models:
NHPL-1825-UNC
NHPL-1833-ECOC-2D-DGT
NHPL-1836-ECOC
Non-Insulated Economy
NHPL-1836C-DGT
NHPL-1836C
Non-Insulated Standard
NHPL-1825-UNC-DGT
NHPL-1825-UNC
Non-Insulated Universal Runner
NHPL-1810/HHC
Non-Insulated Undercounter 1/2 size
INHPL-1836C-DGT
INHPL-1836C
Insulated
100% Pre-Tested Electrical Assembly

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General Information
Models:
NHPL-1833-ECOC-2D-DGT
NHPL-1836-ECOC
NHPL-1836C-DGT
NHPL-1836C
NHPL-1825-UNC-DGT
NHPL-1825-UNC
NHPL-1810/HHC
INHPL-1836C-DGT
INHPL-1836C
TABLE OF CONTENTS
General Information........................................................................................................ 1
Unpacking and Installing ............................................................................................... 1
Maintenance and Caution .............................................................................................. 1
Power Supply .................................................................................................................. 1
Operating Instructions Digital Drawer .......................................................................... 2
Alarms and Conditions................................................................................................... 6
Operating Instructions Analog Controls ...................................................................... 8
Service Specifications.................................................................................................... 8
Recommended Temperature Guidelines-Food holding Chart ................................... 9
Drawer Assembly and Parts ........................................................................................ 10
Electric Schematic Power Supply NHP-PD-DGT Digital ........................................... 11
Electric Schematic Power Supply NHP-PD-ECO Analog.......................................... 12
Universal Runner Assembly Instructions................................................................... 13
Statement of Warranty & Troubleshooting ................................................................ 14

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General Information
Our Heater Proofer Series cabinet will hold food hot at a constant temperature and supply
humidity for proofing when the application applies. This cabinet is NOT a cooking appliance.
UNPACKING
Examine the interior of the unit to make sure all packing materials are removed before the
unit is plugged into an electrical outlet. Examine the interior and exterior to determine whether
any damage was incurred during delivery. If so, notify the carrier immediately to file a damage
claim. All WinHolt equipment is carefully tested and inspected prior to shipment. When
accepted for delivery by carrier, the responsibility for safe arrival at the destination is assumed
by the carrier. For the NHPL-1825-UNC, and NHPL-1825-UNC-DGT universal runners are
boxed separately and found inside the cabinet.
CAUTION
Should any damage be found, do not attempt to operate the unit. Call your dealer
IMMEDIATELY to arrange for service.
INSTALLATION
Position your unit on a stable level surface and plug in the supplied cord into any grounded
120-volt AC, 15 amps power supply dedicated breaker. It does not require a dedicated circuit
but is designed for use with the power cord supplied with the unit. It is highly recommended that
you use ONLY the power cord supplied. Use of a dedicated circuit should insure operational
efficiency. Do not operate the unit with an extension cord.
MAINTENANCE
The equipment has been designed to require minimum maintenance and has been constructed
to meet NSF and U.S. Public Health Service standards.
Non-toxic chemical cleaners or mild detergents are recommended for cleaning of fixtures.
DO NOT use steel wools of any kind. Steel wool particles will work into the grains of the
metal causing corrosion. Also, these particles can cause a health hazard. Should scouring be
required, use a non-abrasive type of cleaner. Do not use caustic solutions on your equipment.
Hosing or steam cleaning should not be necessary to keep these fixtures clean and sanitary.
Do not allow water or steam to come into contact with electrical components. Never power
wash or steam clean the cabinet with the power drawer inserted.
POWER SUPPLY ( NHP-PD-ECO Analog Drawer or NHP-PD-DGT Digital Drawer )
The the units do not require a dedicated circuit but is designed for use with the power cord
which is supplied. It is highly recommended that you use ONLY the power cord supplied. Use
of a dedicated circuit should insure operational efficiency. Do not operate the unit with an
extension cord.
CAUTION
Be sure to disconnect power source before cleaning and servicing the unit. Liability for improper
or careless use is the responsibility of the equipment owner or persons servicing the unit,
including the authorized service agent.

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Operating Instructions For Digital Drawer DGT Series
TURNING ON THE UNIT
When the unit is first plugged in, the control:
• Emits one short beep
• Executes a lamp test for 5 seconds
• Turns “OFF” all indicators
• Turns unit to the “OFF” mode. In this mode the control remains powered as long as the
unit is plugged in, it is not truly off, but the blower and all heaters are off.
TURNING ON THE CONTROL
The Control is turned “ON” by pressing and holding the POWER button for at least 2 seconds.
A beep will occur when first pressed and “Hld“ and “Hld“ will be displayed on the 3-digit
displays indicating “HOLD”. The same process is used to return the Control to “OFF” mode
from “IDLE”, “HEAT”, or “PROOF” mode.
When the Control is first turned “ON”, it enters “IDLE” mode with the “POWER LED” on and the
“HEAT” and all “PROOF LED” off.
The 3-digit displays will show “---“ and “---“ indicating the Control is “ON”, but not yet controlling
Heat or Humidity [Temperature].
MODE SELECTION
“HEAT” Mode
To select “HEAT” mode, press the “HEAT” button while in “IDLE” or “PROOF” mode.
The “HEAT LED” will turn on, the Heat Mode Box Temperature Setpoint will be displayed
(blinking), and the unit will control Box Temperature based on the displayed setpoint. After 10
seconds, the display will change to show the Actual Box Temperature.
To return to “IDLE”, press the “HEAT” button again; the “HEAT LED” will turn “OFF” and Box
Temperature Control will cease. The Heat Mode Box Temperature Setpoint is stored and will
be used the next time “HEAT” mode is entered
“PROOF” Mode
To select “PROOF” mode, press the “PROOF” button while in “IDLE” or “HEAT” mode.
The “PROOF LED” will turn on, the Proof Mode Box Temperature and Humidity [Temperature]
Setpoints will be displayed (blinking), and the unit will control Box Temperature and Humidity
(Water Pan Temperature) based on the displayed setpoints.
Even though the Humidity Setpoint is managed as an “N” index, actual temperature is
displayed in °F or °C, as configured.
To return to “IDLE”, press the “PROOF” button again; the “PROOF LED” will turn off and Box
Temperature and Humidity [Temperature] Control will cease. Proof Mode Box Temperature and
Humidity Setpoints are stored and will be used the next time “PROOF” mode is entered.
NOTE: Box Temperature Setpoint limits are the same in “PROOF” mode as in “HEAT” mode. The
user could set a high box temp even though the humidity setpoint is low.
See page 8 for Analog Drawer Operation

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CONTROLS
TURNING “OFF” THE CONTROL
To turn “OFF” the Control, press and hold the “POWER” button, the Control stores the (“IDLE”,
“HEAT”, or “PROOF”) Operating Mode.
When the Control is turned back “ON”, it automatically enters its previous mode. Along with
separately stored “HEAT” and “PROOF” mode Box Temperature Setpoints.
This feature streamlines transitions between “HEAT”, “PROOF”, “IDLE”, and “OFF” modes.
BOX (CABINET) TEMPERATURE
Box (Cabinet) Temperature is indicated on the left-hand 3-digit display when in “HEAT” or
“PROOF” mode.
The display can be configured for °F, °C, or “N” index-based format. If in “N” format, the
“SETPOINT” is displayed as a numeric value from 1 through 9 and the actual temperature is
displayed in °F, otherwise, both setpoint and actual temperature are displayed in the selected
format.
Box Temperature Setpoint (see Table 2 for “N” index-based setpoints):
Table 1
°F °C “N”
Minimum 80 26 1 (80 °F)
Maximum 190 88 9 (190 °F)
Resolution 5 2 1 (13.75 °F)
Table 2
“N” Indexed Format Box Temperature Setpoint Table
“N” °F °C
1.0 80.00 26.67
2.0 93.75 34.31
3.0 107.50 41.94
4.0 121.25 49.58
5.0 135.00 57.22
6.0 148.75 64.86
7.0 162.50 72.50
8.0 176.25 80.14
9.0 190.00 87.78
°/”N” 13.75 7.64
Operating Instructions (continued)

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Operating Instructions (continued)
BOX TEMPERATURE HEATER CONTROL
Table 1
Behavior / Selected Units °F °C “N” Index
Heater(s) turn off (temperature increasing) Setpoint + 2 Setpoint + 1 Setpoint + 2 °F
Heater(s) turn on (temperature decreasing) Setpoint – 2 Setpoint – 1 Setpoint – 2 °F
The Control implements a three-stage power algorithm during Box Temperature Control to
minimize power consumption, improve temperature consistency, and minimize relay cycles.
There are two Heaters available to heat the box: 900 W and 600 W.
There are three stages of heat that can be used:
Stage 1 = 600 W
Stage 2 = 900 W
Stage 3 = 900 W + 600 W = 1500 W.
When initially entering “HEAT” mode or if the user increases the “SETPOINT” while in
“HEAT” mode, the Control uses Stage 3 to reach its setpoint as quickly as possible.
If, during any heating cycle, the setpoint is reached before 4 minutes elapse, the next
heating cycle begins with the next lower stage.
If, during any heating cycle, the setpoint is not reached before 8 minutes elapse, the
control immediately uses the next higher stage and the next heating cycle will begin
with that higher stage.
Humidity [Temperature]
Humidity [Temperature] is indicated on the right-hand 3-digit display, only in “PROOF”
mode.
Throughout this document, humidity refers to the Water Pan Temperature, since humidity is not
directly sensed.
In “HEAT” mode, “---“ is displayed. The Humidity Setpoint ranges from 1.0 through 9.0 with a
resolution of 0.5. See Table 2.

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Operating Instructions (continued)
Table 2
Humidity [temperature] Setpoint Table (“N” Indexed Only)
"N" °F °C
1.0 100.00 37.78
1.5 103.13 39.51
2.0 106.25 41.25
2.5 109.38 42.99
3.0 112.50 44.72
3.5 115.63 46.46
4.0 118.75 48.19
4.5 121.88 49.93
5.0 125.00 51.67
5.5 128.13 53.40
6.0 131.25 55.14
6.5 134.38 56.88
7.0 137.50 58.61
7.5 140.63 60.35
8.0 143.75 62.08
8.5 146.88 63.82
9.0 150.00 65.56
°/"N" 6.25 3.47
HUMIDITY [TEMPERATURE] HEATER CONTROL
Table 1
Behavior / Selected Units “N” Index
Heater turns off (temperature increasing) Setpoint + 2 °F
Heater turns on (temperature decreasing) Setpoint
When Setpoints are displayed, they are always flashing.
When Actual Temperatures are displayed, they are always steady.
To view/set a Temperature or Humidity “SETPOINT”, press the “UP” or “DOWN” button
beneath the respective Temperature or Humidity Display.
The “SETPOINT” will flash and may be adjusted up or down to its limits using the “UP” or
“DOWN” buttons.
When being adjusted, Setpoint(s) will remain flashing for 5 seconds while adjusting. After
adjusting a steady display will show actual conditions.
Note: Humidity Setpoint may be set only in “PROOF” mode, not in “HEAT” mode.

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Operating Instructions (continued)
READY INDICATORS FOR HEAT AND HUMIDITY
The Control provides two “READY” indicators for Heat and Humidity.
“READY” indicators are controlled separately and the Humidity Ready indicator will remain off
in “HEAT” mode.
The Heat Ready / Proof Ready function operates as follows:
Behavior / Selected Units °F °C “N” Index
LED turns on (temperature increasing) Setpoint Setpoint Setpoint
LED turns off (temperature decreasing) Setpoint – 10 °F Setpoint – 6 °C Setpoint – 10 °F
Alarms and Conditions
AUDIBLE INDICATORS
The Control provides audible indicators as follows:
One short beep: When power is first applied.
One short beep: When the “POWER” button is pressed while in “OFF” mode.
Three short beeps: Box Temperature or Humidity [Temperature] becomes “READY” and
the “READY LED” turns “ON”.
One long beep: Box Temperature or Humidity [Temperature] transitions from “READY” to
“NOT READY” and the “READY LED” turns “OFF”.
When an alarm condition is detected, as described below:
• The Control has a “LOW WATER” indicator which is not included. There is neither
a sensor nor a detection technique implemented in its firmware. This red LED is
illuminated during the Lamp Test Function only.
• The Circulating Blower is turned “ON” when the Control transitions from “OFF” to “IDLE”,
“HEAT”, or “PROOF” mode and remains “ON” until the Control returns to “OFF”. The
Blower remains “ON” in “IDLE” mode even though no heaters are on in that mode.
• The Control defaults to display in °F, but the display format is easily changed.
Turn the unit “OFF” by holding the “POWER” button, then hold both “POWER” and Box
Temperature “DOWN” buttons until “Hld” turns off. At that point the currently selected
display format will appear on the Temperature Display as “F”, “C”, or “n”.
Use the temperature “UP” or “DOWN” buttons to scroll through the format options to
change the format. When the desired format is displayed, stop pressing buttons and wait
10 seconds for the Control to return to the mode prior to being turned off. The selected
format will be remembered even if power is removed.
• Firmware Version 0.4 adds the option to view the Control’s Firmware Version on the
3-digit displays.
Turn the unit “OFF” by holding the “POWER” button, then hold both “POWER” and

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Alarms and Conditions (continued)
Humidity Temperature “DOWN” buttons until “Hld” turns off.
The Firmware Major Version will be displayed on the Heat Temperature Numeric
Display, along with a trailing decimal point.
The Firmware Minor Version will be displayed on the Humidity Temperature Numeric
Display.
After 10 seconds the control will return to the mode prior to being turned off.
• If an Alarm Condition is detected, the beeper sounds for 0.5 second and then is off for 1
second. This repeats until acknowledged (silenced).
To acknowledge (silence) the alarm, a short press of the “POWER” button is all that is
required.
The Alarm Condition may persist, but the beeper will remain silenced until another
alarm condition occurs.
• In addition to the audible alarm, the two 3-digit displays provide information about the
cause of the alarm as shown in the following table. If an Alarm Condition is detected
but goes away before being acknowledged, its indication will continue until being
acknowledged.
Fault Detected Detection Method Indication Effect on Operation
Pushbutton stuck Pushbutton actuated
longer than 30
seconds
“Err” “Pbn” pushbutton
“n” stuck where “n” is
1 = power; 2 = heat;
3 = proof; 4 = heat up;
5 = heat down;
6 = [proof] humidity up;
7 = [proof] humidity down
None – stuck
pushbutton is ignored
Box temperature
Thermistor shorted
Thermistor resistance
out of range too low
“Err” “5l5” sensor 1
short
Box Heater(s) are
turned off
Box temperature
Thermistor open
Thermistor resistance
out of range too high
“Err” “5lO” sensor 1
open
Box Heater(s) are
turned off
Water temperature
Thermistor shorted
Thermistor resistance
out of range too low
“Err” “525” sensor 2
short
Water Heater is turned
off
Water temperature
Thermistor open
Thermistor resistance
out of range too high
“Err” “52O” sensor 2
open
Water Heater is turned
off
No AC Line Interrupt 60 Hz (16.67 ms
interval) interrupt has
not occurred within
50 ms
“Err” “AC ” AC interrupt Timed relay operations
are suspended; relay
operations lose AC
line synchronization

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The Heater-Proofer is an aluminum transport cabinet with heaters to function as a hot food holding cabinet,
and/or as a proofing cabinet.
The heater, or heat drawer, is slid into place on the lower ledges of the cabinet. An electrical power cord is
provided and plugged into the drawer through an access hole in the back of the cabinet.
The main power switch on the front of the drawer, when switched “ON”, will turn on the light in the switch
and turn on the air circulating fan in the drawer. The circulating fan and 900w heater element will operate
continuously while the unit is “ON”.
Analog Drawer: The thermostat control knobs are mounted to the left and right of the HEAT/ PROOF switch.
The left thermostat knob controls the heat in the cabinet from 1 (low heat; approx. 80 °F) to 9 (high heat;
approx. 185 °F). The right thermostat knob controls the humidity from 1 (approx. 20% relative humidity) to 9
(100% relative humidity). Average setting will be approx. 6 (approx. 85% relative humidity).
Digital Drawer:The thermostat control buttons are located under each digital display “Heat Temperature”
or “Proof Temperature”. The heat controls in the cabinet range from low heat approx. 80 °F to high heat,
approximately 185 °F. The humidity controls in the cabinet range from approximately 20% to 100% relative
humidity. The average will be approximately 85% relative humidity.
Service Specifications
Heater Proofer Series
Operating Instructions For Analog Drawer Series C Series
1. Push main power switch (ON/ OFF rocker) to “ON” position.
2. Push HEAT/ PROOF switch to HEAT for heating ONLY.
3. Turn HEAT thermostat knob fully clockwise for preheat.
4. Allow 45 minutes for pre-heating, then turn thermostat to desired setting.
5. Place water in the “water pan” filling to about 3/4 full, for proofing
6. For proofing, push HEAT/ PROOF switch to PROOF.
7. Adjust the heat and humidity thermostat knob to control desired temperature and
humidity. Allow 45 minutes for pre-heating.
NOTE: The internal air circulation blower and 900w heater element (controlled with the “Heat”
Thermostat) will operate continuously when the power switch is turned “ON”.
HEAT THERMOSTAT
The controlling range is 80°F to 185°F. The dial has numbers 1 thru 9 that do not relate to a specific
calibrated temperature. Temperature settings must be obtained through familiarization with the unit. The dial
also has an “OFF” position to turn heater unit off.
HUMIDITY THERMOSTAT
To control humidity range from 30% to 100%, humidity settings must be obtained through familiarization with
the unit. The dial has numbers 1 thru 9 that do not relate to a specific calibrated humidity. The dial also has
an “OFF” position to turn humidity off.
To maintain low heat range between 85°F and 100°F, switch to proof mode and adjust heat knob to
desired heat range. Allow 45 minutes to pre-heat in proof cycle.

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Food Product Covered Or Uncovered Temperature Fo
f
Biscuit Uncovered 180
Broccoli Covered 170 - 175
Chicken Fried Uncovered 180 - 185
Chicken Nuggets Uncovered 175
Chicken Whole Uncovered 170 - 180
Corn on the Cob Covered 170 - 175
Croissants Uncovered 175
Egg Patties Covered 180
Fish Baked Uncovered 175
Fish Fried Uncovered 180
French Fries Uncovered 185
Hamburgers Covered 180
Lasagna Covered 185
Potatoes Baked Uncovered 180
Potatoes Mashed Covered 175
Potatoes Scalloped Covered 175
Pancakes Covered 175
Pasta Covered 180
Peas Covered 170 - 175
Pizza Uncovered 175 - 180
Roast Beef Uncovered 170 - 180
Roast Pork Uncovered 170 - 180
Strip Steak Uncovered 160 - 170
Turkey Uncovered 170 - 180
Vegetables Mixed Covered 170 - 175
Waffles Covered 175
Recommended Temperature Guidelines
Food Holding Chart

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Drawer view from upside
down with bottom cover
removed.
HEATER PROOFER
POWER SUPPLY
120VAC 60Hz
13.5 AMP
Heater Proofer
Replacement Parts
(1)
(2)
(4)
(3)
(11)
(6)
(2A)
(5)
(10)
(12)
(9)
Removable Drawers
Makes Cleaning Quick & Easy
Part
Location Part Description Order# Model#
Heater Drawer Parts List
—Digital Drawer
Analog Drawer
1069296
631208
NHP-PD-DGT
NHP-PD-ECO
1Main Power Switch 637108 H-106-2B
1Main Power Switch
Units shipped after 5.2013 987124 H-106-2C
2L.E.D. Thermometer
123887 H-105
2A Thermometer Transformer
3Heat/Proof Switch 232784 H-106-1
9Power Inlet 123908 H-107
4Thermostat (Heat)
170851 H-220
5Thermostat (Proof)
6Blower & Motor Assembly 637095 H-225-B
10 900W Heater Element 170907 H-226
11 600W Heater Element 170915 H-227
12 600W Water Pan Heater
Element 170923 H-228
12A Water Pan w/studs 696482 H-242
13 Heat Control Knob 123916 H-108
14 Proofer Control Knob
15 Circuit Breaker 1081691 H-249
--- External Drip Pan 683665 WHPP6122.5D
Replacement power cord available at local home improvement stores
Cabinet Parts List
Replacement Door Lexan
1836 Series 247505 NHPL-DR
Replacement Universal Runner (1) 657150 NHPL-1825-UN-RUNNER
Door Gasket for NHPL-1810HHC 681416 NHPL-1810/HH-DR GSKT
Door Gasket for NHPL-1825UNC 681328 NHPL1825-UN-DR GSKT
Door Gasket for 1836 Series 650484 NHPL1836-DR GSKT
Replacement Door Lexan
Universal Runner 657459 NHPL-DR/UN
Replacement Door Lexan
Mini Half Height 657432 NHPL-DR/HH
Plastic Door Handle 233656 H-323-2
(15)
(14)
(3)
(13)
Air baffle and
circulating air blower
provide even heat
distribution.
Water Pan (12A)
(2)
(1)
NHP-PD-ECO
Analog Drawer
NHP-PD-DGT
Digital Drawer

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Electric Schematic Power Supply
Digital Drawer
NHP-PD-DGT

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Electric Schematic Power Supply
(continued)
Analog Drawer
NHP-PD-ECO

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Universal Runner Assembly Instructions
NOTICE: WIRE RUNNER ASSEMBLY & REMOVAL PROCEDURE
RUNNERS MUST BE ASSEMBLED
WITH A 4” MINIMUM SPACE ABOVE
THEM TO ASSEMBLE THE RUNNER
GRASP THE RUNNER AS SHOWN
IN THE PHOTOS BELOW.
TILT THE RUNNER UP AND ENGAGE BOTH
ENDS TOGETHER. DO NOT HAVE ONE
SIDE ENGAGED LESS THAN THE OTHER.
ROTATE THE RUNNER DOWN APPLYING
A SLIGHT FORCE INWARD AGAINST THE
RUNNER AND CABINET. DO NOT FORCE
WHEN IN THE CORRECT POSITION THE
RUNNER SHOULD BE AT 90 DEGREES
TO THE SIDE OF THE CABINET.
RUNNERS MUST BE REMOVED
WITH A 4” MINIMUM SPACE ABOVE
THEM TO REMOVE A RUNNER
GRASP THE RUNNER AS SHOWN
IN THE PHOTOS BELOW
TILT THE RUNNER UP SLOWLY WHILE
PULLING THE RUNNER OUTWARD AWAY
FROM THE SIDE OF THE CABINET.
DO NOT FORCE IT ASSURE BOTH SIDES
ARE IN THE SAME POSITION AS YOU ARE
LIFTING THE RUNNER
KEEP TILTING UNTIL THE RUNNER
TOUCHES THE SLOTTED SIDE OF
THE CABINET AND WITH BOTH ENDS
OF THE RUNNER EQUAL DISTANT FROM
THE CABINET SIDE THE RUNNER WILL
SLIDE OUT EASILY. DO NOT FORCE IT

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Statement of Warranty
Winholt Power Equipment Warranty
Winholt warrants to the initial purchaser that all Winholt power equipment, including but not limited to Heater Proofers and Film
Wrappers be free from defects in material or factory workmanship, under ordinary use for the purpose for which it is designed, for a
period of (1) year from the date of shipment from the Winholt facility. Equipment will at our option be repaired or replacement part(s)
furnished F.O.B. our factory. Warranty includes one (1) year labor from date of said shipment.
Return of component parts will not be accepted for credit without prior authorization of our Customer Care Department and then
contingent upon our inspection. Warranty will not apply if, after examination, Winholt finds that the equipment or any part there of was
found defective through lack of purchaser’s responsibility for maintenance or storage, shipping damage, accidental damage by moving
or otherwise, improper voltage, misapplication or alteration by anyone other than ourselves, or use of unauthorized parts. Warranty
does not apply to glass, plastic, light bulbs, gaskets, or heater elements.
Prior to any service agency performing warranty labor, Winholt’s Customer Care Department must be contacted to provide a “Service
Authorization” (SA) number. Winholt assumes no responsibility for any charges that were not expressly authorized by it or for any
charges that exceed in Winholt’s sole judgement, normal and customary amounts. If service is required during overtime the difference
between overtime and standard labor rates shall be paid by the purchaser. Warranty does not apply if payment has not been received
for the equipment at the time a claim is made or if the Winholt serial number has been removed.
Warranty Exclusions and Limitations: Warranty applies only within the United States, equipment outside the United States shall have
parts coverage only.
Administration of Warranty
For assistance in filing a claim, contact Winholt ‘s Customer Care Department at 800.444.3595. Hablamos Español. All claims must
be filed in writing and can be sent via: e-mail to [email protected], faxed to 516-921-0538 or mailed to Winholt
Equipment, 1169 North Great Southwest Parkway, Grand Prairie, Texas 75050, Attention: Customer Care Department. If deemed
necessary by Winholt, the product must be returned to a Winholt factory designated by Winholt, at the owner’s expense for inspection
and approval of the claim.
Be sure you or your customer has the following information available when calling: Model Number, Name of Dealer, Serial Number
and Installation Date
Troubleshooting
CAUTION
Before disassembling unit, electrical power must be disconnected by unplugging the unit. Failure to unplug the unit prior
to servicing may result in electrical shock.
Each unit is shipped with an instruction manual and should be used as a reference guide for all service areas. The
manual shows a picture of the drawer, showing the location of electrical components and a description of each. If the
unit does not operate correctly, or malfunctions for any reason, the following check list should provide a solution.
1. Check to make sure “power cord” is firmly plugged into the wall outlet.
2. Check circuit breaker of wall outlet and reset if necessary.
IF unit fails to start, please do the following:
3. Remove heat drawer from cabinet. Remove bottom cover of drawer. Visually inspect to observe for:
a. Loose or disconnected wires
b. Black marks or burning on an components
c. Loose heating elements.
4. If any burn marks or discoloration of wires is noted on any component, the component along with all wires attached to
the damaged component must be replaced.
5. If heater element is loose, or if it has broken loose from mounting tabs, the wires will short out on the metal, causing
permanent damage. Both the element and main power switch (with wires on switch) must be replaced.
6. If temperature on “L.E.D. Thermometer” is not reading a constant temperature, it must be replaced along with its
power supply transformer.