T
ROUBLESHOOTING
Combination Warmer
▪
Operator’s Manual
▪
M N-47424
▪
Rev 1
▪
4/21
50
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.
E-11
ES11
ES21
ES31
ES41
ES51
ES61
ES71
Cavity sensor
Pad sensor 1
Pad sensor 2
Pad sensor 3
Pad sensor 4
Pad sensor 5
Pad sensor 6
Pad sensor 7
Sensor is open. 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. Disconnect the sensor from the warmer control PCB
and use an Ohm meter to measure the resistance of the sensor.
Sensor PR-37140 should measure 10 KOhm ± 1.5 KOhm at 25°C (77°F).
Sensor SN-33541 should measure 100 Ohm ± 10 Ohm at 25°C (77°F).
Replace sensor if measurement is outside of tolerance.
◾
Check the wires for integrity. Check for proper and secure connections
at the control and terminal block. If necessary, re-secure the faulty
connections.
◾
Contact service if error persists.
E-30
Under
temperature
The cavity temperature is lower than the set temperature for 90 minutes or
longer.
◾
Make sure the door is closed.
◾
If the cavity is overloaded, redistribute the inventory. Do not exceed the
height of the insert.
◾
Test the sensor. Disconnect the sensor from the warmer control PCB
and use an Ohm meter to measure the resistance of the sensor.
Sensor PR-37140 should measure 10 KOhm ± 1.5 KOhm at 25°C (77°F).
Sensor SN-33541 should measure 100 Ohm ± 10 Ohm at 25°C (77°F).
Replace sensor if measurement is outside of tolerance.
*E-31
Cavity sensor
◾
The sensor reading is above the temperature set-point. Blanket
warming mode triggers at 15° over set-point. Fluid warming mode
triggers at 5° over set-point.
◾
The difference between the room temperature and the fluid set-point
temperature must be greater than 11°C (20°F).
◾
Contact service if error persists.
Code
Refers to
Action required