Figure 11-1 Thermistor Sensor Assembly; Figure 11-8 Thermostat; Figure 11-13 Thermostat Cable - Covidien WarmTouch Service Manual

Heater not operating
Thermostat test failure
(thermostat fails to open)
Temperature accuracy test
failure
(output air temperature not
within specification)
Electromagnetic interference
between the warming unit
and other devices
Service Manual
Table 6-1. Warming Unit Problems and Resolutions (Continued)
Problem
Check the error codes on the System Information screen
•
(page
(page
Check the heater cable connection to the power PCBA
•
(page
Try replacing components in the following order:
•
1. Heater
2. Power PCBA
Check the error codes on the System Information screen
•
(page
(page
Check the thermostat cable connection to the power PCBA and
•
to the thermostat terminals
Try replacing components in the following order:
•
1. Thermostat
2. Power PCBA
3. Thermostat cable
Check the error codes on the System Information screen
•
(page
(page
Check the thermistor cable connection to the power PCBA
•
(page
Make sure that the thermistor wire and rivet are correctly
•
attached to the hose duct adapter
Check the heater cable connection to the power PCBA
•
(page
Try replacing components in the following order:
•
1. Thermistor sensor assembly
2. Power PCBA
Check the error codes on the System Information screen
•
(page
(page
Advise the customer to try increasing the distance between
•
devices, repositioning the cabling, or plugging the devices into
separate outlet circuit branches. See
bility (EMC)
Resolution
1-9), and perform recommended corrective actions
B-1).
10-31).
(page 11-43).
(page 10-31).
1-9), and perform recommended corrective actions
B-1).
(page
(page 11-9).
(page 10-31).
(page 11-14).
1-9), and perform recommended corrective actions
B-1).
11-3).
10-31).
(page
(page 10-31).
1-9), and perform recommended corrective actions
B-1).
on page 13-4 for additional guidance.
Basic Troubleshooting
11-14).
(page 11-4).
11-3).
Electromagnetic Compati-
6-11