T
ROUBLESHOOTING
Blanket Warmer
▪
Operator’s Manual
▪
MN-39924
▪
Rev 3
▪
3/20
45
Error Codes
Background
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 warmer is not operating properly, check the following
before calling an authorized service agent:
Verify that the power to the warmer is on.
If applicable, ensure the female end of plug is securely seated in the
warmer and that the male end of plug is in an appropriate,
functioning outlet.
If applicable, examine the fuses. Replace the fuses, refer to topic
How
to Replace a Fuse
.
If applicable, examine the high limit manual reset button. If the high
limit manual reset button is tripped, reset the warmer, refer to topic
How to Manually Reset the Warmer
.
NOTE:
All non-critical codes can be cleared using the standby button.
Critical errors (marked with a *) can only be cleared by setting the
power switch at the rear of the warmer to the off (O) position and
allowing the warmer to cool.
NOTICE
Do not attempt to repair or service the warmer 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.
Code
Refers to
Action required
Display flashes
set point
Cavity
temperature
higher than set
point
Cavity temperature is higher than the set point temperature.
◾
Allow cavity to cool to set point temperature.
E-10
ES10
ES20
ES30
ES40
ES50
ES60
ES70
Cavity sensor
Sensor 1
Sensor 2
Sensor 3
Sensor 4
Sensor 5
Sensor 6
Sensor 7
Sensor is shorted. Software disengages heating pads. Acknowledge error
by pressing the standby button. If error persists, a qualified 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.
◾
Contact service if error persists.
