
Form No. RCMWDCEM-1112
8
MAINTENANCE
General
The lo-Ray®Merchandising Warmer is designed for
maximum durability and performance, with minimum
maintenance.
ELECTRIC SHOCK HAZARD:
• Turn OFF power switch, unplug power cord, and allow
unit to cool before performing any cleaning,
adjustments, or maintenance.
• DO NOT submerge or saturate with water. Unit is not
waterproof. Do not operate if unit has been submerged
or saturated with water.
• Do not steam clean or use excessive water on the unit.
• Do not clean unit when it is energized or hot.
• Use only Genuine Hatco Replacement Parts when
service is required. Failure to use Genuine Hatco
Replacement Parts will void all warranties and may
subject operators of the equipment to hazardous
electrical voltage, resulting in electrical shock or burn.
Genuine Hatco Replacement Parts are specified to
operate safely in the environments in which they are
used. Some aftermarket or generic replacement parts
do not have the characteristics that will allow them to
operate safely in Hatco equipment.
This unit has no “user-serviceable” parts. If service is
required on this unit, contact an Authorized Hatco Service
Agent or contact the Hatco Service Department at
414-671-6350; International fax 414-671-3976.
Cleaning
To preserve the finish of the unit, perform the following cleaning
procedure daily.
Clean unit daily to avoid malfunctions and maintain
sanitary operation.
Use non-abrasive cleaners and cloths on glass and metal
surfaces. Abrasive cleaners and cloths could scratch the
finish of the unit, marring its appearance and making it
susceptible to soil accumulation.
IMPORTANT—DO NOT use paper towel or glass cleaner to
clean the polycarbonate surfaces. Paper towel and glass
cleaner may scratch the material. Wipe off polycarbonate
surfaces using a soft, clean and damp cloth.
NOTE: The sneeze guard and side panels are removable for
cleaning. everse the procedures in the
INSTALLATION section of this manual for removal.
1. Move the Power Switch to the “Off” position and unplug the
power cord. Allow the unit to cool.
2. Wipe all metal surfaces with a damp, non-abrasive cloth.
Stubborn stains may be removed with a good non-abrasive
cleaner. Hard to reach areas can be cleaned using a small
brush and mild soap.
3. Clean the glass side and rear panels using ordinary glass
cleaner and a damp, soft cloth or paper towel.
NOTE: Do not remove the rear mirror glass panel for cleaning.
It must be cleaned in place.
4. Clean the polycarbonate sneeze guard and doors using a
mild, soapy water solution and a damp, soft cloth. NOTICE:
DO NOT use paper towel.
5. Empty and rinse the water reservoir (humidified units only).
Replacing Display Light Bulbs
The warmer is equipped with shatter-resistant halogen light
bulbs to illuminate the warming area. The bulbs have a special
coating to guard against injury and food contamination in the
event of breakage. Use the following procedure to replace a
display light bulb.
Use only light bulbs that meet or exceed National
Sanitation Foundation (NSF) standards and are specifically
designed for food holding areas. Breakage of light bulbs
not specially-coated could result in personal injury and/or
food contamination.
1. Turn off the unit, unplug the power cord, and allow the unit
to cool.
2. Unscrew the light bulb(s) from the unit and replace with a
new, specially-coated halogen light bulb(s).
NOTE: Hatco shatter-resistant light bulbs meet NSF standards
for food holding and display areas. For 220–240 volt
applications, use Hatco P/N 02.30.082.00.
Removing Lime and Mineral Deposits
Use the following procedure for periodic cleaning and de-liming
of the water reservoir in the RCMW-1DH model.
NOTE: The lime and mineral content of the water used for daily
operation will determine how often the deliming
procedure must be performed.
NOTE: Perform this procedure when the unit will not be used
for a period of time, such as the end of the day.
1. Move the Power Switch to the “Off” position and unplug the
power cord. Allow the unit to cool.
2. Remove the water reservoir cover and water reservoir.
Empty the water reservoir.
3. Reinstall the water reservoir.
4. Fill the water reservoir with a mixture of 75% water and 25%
white vinegar.
5. Plug in and turn on the unit.
6. Allow the unit to run for 30 minutes.
7. Move the Power Switch to the “Off” position and unplug the
power cord. Allow the unit to cool.
8. Empty the deliming solution from the water reservoir.
9. Continue to fill and rinse the reservoir with clean water until
the reservoir is clean.
10. Install the reservoir into the unit. Plug the unit into its power
source and fill the reservoir as usual for daily operation.
11. Install the water reservoir cover.