Troubleshooting - Enthermics DC250 Owner's Manual

This section is provided for the assistance
of qualified and trained service
technicians only and is not intended
for use by untrained or unauthorized
service personnel. Failure to observe this
precaution may void the warranty.
NOTE: If the appliance is not operating properly, check the
following before calling an authorized service agent:
• Verify that the power to the appliance is on.
• Ensure the female end of plug is securely seated
in appliance and that the male end of plug is in an
appropriate, functioning outlet.
• Examine the fuses. See fuse replacement
instructions.
Troubleshooting Guide
Code Refers to
Display Cavity temperature
fl ashes higher than set
set point point
E-10 Cavity sensor
ES10 Sensor 1
ES20 Sensor 2
ES30 Sensor 3
ES40 Sensor 4
ES50 Sensor 5
ES60 Sensor 6
ES70 Sensor 7
E-11 Cavity sensor
ES11 Pad sensor 1
ES21 Pad sensor 2
ES31 Pad sensor 3
ES41 Pad sensor 4
ES51 Pad sensor 5
ES61 Pad sensor 6
ES71 Pad sensor 7
*E-31 Cavity sensor
P131 Pad sensor 1
P231 Pad sensor 2
P331 Pad sensor 3
P431 Pad sensor 4
P531 Pad sensor 5
P631 Pad sensor 6
P731 Pad sensor 7
*E-33 Cavity sensor
*E-50 Analog to Digital
* All non-critical codes can be cleared using the on/off button. Critical errors (marked with a *) can only be cleared by turning the power switch at the
Convertor Error
rear of the appliance off and allowing the appliance to cool.
E-60 Real Time Clock
Checksum Error
(Blanket warmers only)
Action Required
Cavity temperature is higher than the set point temperature.
• Allow cavity to cool to set point temperature.
Sensor is shorted. Soft ware disengages heating pads. Acknowledge error by pressing the
ON/OFF button. If error persists, a qualifi ed service technician should test the sensor.
• Test the sensor. Detach the sensor from the warmer. Use an Ohm meter to measure
the resistance of the sensor. Check the sensor at 25°C (77°F). If the reading is 10 KOhm
±1.5 KOhm, replace the display. If the reading is ±2 KOhm, replace the sensor.
• Check the wires for integrity. Inspect the connections at the control and terminal
block to ensure proper and secure connections. If necessary, re-secure the faulty
connections.
• Call service if error persists.
Sensor is open. Soft ware disengages heating pads. Acknowledge error by pressing the
ON/OFF button. If error persists, a qualifi ed service technician should test the sensor.
• Test the sensor. Detach the sensor from warmer. Use an Ohm meter to measure the
resistance of the sensor. Check the sensor at 25°C (77°F). If the reading is 10 KOhm ±1.5
KOhm, replace the display. If the reading is ±2 KOhm, replace sensor.
• Check the wires for integrity. Check for proper and secure connections at the control
and terminal block. If necessary, re-secure the faulty connections.
• Call service if error persists.
• The sensor reading is above the temperature set-point. [Blanket warmer triggers at 15°
over set-point. Fluid warmer triggers at 5° over set-point.]
• The diff erence between the room temperature and the fl uid set-point temperature
must be greater than 11°C (20°F).
• Call service.
Heater pad over-temp error
• Soft ware disengages heating pads.
• Acknowledge error by pressing the ON/OFF button.
• Allow the warmer to cool.
• Call service if the error persists.
• Sensor reading is above maximum allowable temperature set-point and over temp
value. [Blanket warmers trigger at 82°C (180°F). Fluid warmers trigger at 71°C (160°F).]
• Contact service
• Remove inventory, discard if necessary, and allow the warmer to cool down.
• If error persists aft er cool down and reset, the control assembly should be replaced by
a qualifi ed service technician. Contact service.
MN-37072 • Rev 5 • 12/18 • Designer Series Blanket Warmer
Real time clock rechargeable battery backup has discharged.
• Plug the warmer into the outlet for 30 minutes.
NOTE: The Blanket warmer temperature may fluctuate ±10°
from the set point.
All non-critical codes can be cleared using the ON/OFF
button. Critical errors (marked with a *) can only be
cleared by turning the power switch at the rear of the
appliance off and allowing the appliance to cool.
Notice: Do not attempt to repair or service the appliance
beyond this point. Contact the manufacturer for the
nearest authorized service agent. Repairs made by
any other service agent without prior authorization by
the manufacturer will void the warranty.
The serial number is required for all inquiries.
Always include both model and serial number(s) in any
correspondence regarding the appliance.
Model: ______________________________________________
Serial number: ______________________________________________
Purchased from: ______________________________________________
Date installed: ____________________ Voltage: ____________

Troubleshooting

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