Pedigo P-2420 Operator's Manual page 50

T
ROUBLESHOOTING
Code Refers to
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-30 Under
temperature
*E-31 Cavity sensor
50
Action required
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.
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.
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.
◾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.
C om b i n at i on W a rm e r Op er a to r ' s Ma n u al M N- 47 4 2 4
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Rev 1 4/ 2 1
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