Care & Maintenance - Cambro COMBO CART PLUS Owner's Manual

VII. Care and Maintenance
a. HeaTer anD DOOr
WARNING! Completely cool heater unit prior to cleaning or maintenance.
WARNING! Do not submerge heater in water or spray water on it.
WARNING! Do not get the thermometer wet in any way.
WARNING! Unplug heater from grounded power source and from door heater prior to cleaning.
NOTE: Normal operation of the door heater is controlled by an automatic cycling "Control Thermostat." Failure of the control thermostat may cause the temperature inside the
compartment to rise to temperatures that could cause damage to the plastic.
A second, manually resettable "Hi-limit Thermostat," is built into the heater circuit. This device will shut off power to the heater in the event the temperature in the cabinet
reaches to 195˚F (90,6˚C). The heating unit will not return to normal operation until the reset button on the hi-limit thermostat is depressed. Other factors can cause the
hi-limit thermostat to shut off power, such as fan failure or placing food pans inside the compartment with temperatures higher than 190˚F (87,8˚C).
CauTIOn: electrical shock Hazard!
Before attempting to reset the hi-limit thermostat, unplug the heater power cord from the power source and from the heater.
WARNING! Only use "non-metal" tools to depress the reset button.
Do not bypass or alter the thermostats in any way.
1. Remove the power cord from the wall outlet or power supply and remove the other end from the front of the heater.
2. Open the door and hold the heater firmly while you remove the 5 thumb screws with washers, holding the heater against the inner face of the door.
This may also be done after removing the door from the Cambro product or by having another person hold the heater for you.
3. Place the heater on a stable surface with the metal section facing down. Locate the small round hole in the cover with the word RESET next to the hole.
4. Using a small diameter, round, non-metal item such as a rigid plastic stir stick or wooden skewer stick, guide it through the hole and depress the
button on the hi-limit thermostat as seen in the figure below.
nOTe: The Amber light will not be active when the high-limit thermostat has been tripped along with the loss of the heater element.
5. Remove the item you used to depress the button and re-attach the heater to the door with the screws and washers and tighten.
6. Plug the cord into the heater and then to the power source. Switch on the heater and verify it is heating up to the normal temperature.
1. Carefully remove nylon thumbscrews and washers from heater with
one hand while holding heater with your other hand.
CAUTION! Once you start loosening the thumbscrews, the heater
may fall unless you are firmly holding it.
2. Once heater is removed from the door, clean components and door
door with a moist soft cloth and mild detergent.
3. Use a clean moist soft cloth to remove any remaining soap and dirt.
4. Completely air dry all components or wipe with dry, clean soft cloth
before re-assembling and using the heater.
5. Carefully place heater into the recessed area of the inner face of
the door. Align AC inlet for power connection with rectangular hole
through the door.
6. Use washers and thumbscrews to re-attach heater to door. Tighten
thumbscrews firmly but not excessively. Do not use pliers or tools.
During normal operation, periodically check thumbscrews for
tightness.
7. Inspect plug blades and cord and replace power cord if frayed or
blades are missing, bent or broken.
6
Instructions for resetting Door Heaters
Cleaning Door and Heater
Digital
Thermometer
Door
Heater
Nylon Washer
5 ea. per heater
Nylon
Thumbscrew
5 ea. per heater