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Troubleshooting
Check Heater
Check the continuity of the heater to verify proper
resistance. If there is no continuity, the heater has
failed and needs to be replaced.
1. Disable gun assembly. See
Before Beginning Repair, page 17
2. Check resistance of the heater using a multimeter
between the pins of the cordset connector. See
connectors illustrations in cordset pin tables.
3. Replace the heater cartridge if the
resistance reading is outside the
range or if there is no continuity. See
Replace Heater Cartridge, page 18
Cordset
Check Pins
Approximate
Resistance
Values
24P280,
Platinum 100
Ohm RTD
Cordset
A and C
24P283, Nickel
120 Ohm RTD
Cordset
1 and 2
130–140 ohms
Table 1 24P280, Platinum 100 Ohm RTD Cordset
Pin
Description
A
Thermal Cutoff
B
Ground
C
Heat -
D
RTD (White)
E
RTD (Red)
Table 2 24P283, Nickel 120 Ohm RTD Cordset
Pin
Description
1
Thermal Cutoff
2
Heat -
3
RTD (White)
5
RTD (Red)
G
Ground
Check RTD
Check the continuity of the RTD to verify proper
resistance. If there is no continuity, the RTD has
failed and needs to be replaced.
1. Disable gun assembly. See
Before Beginning Repair, page 17
.
2. Check resistance of the RTD using a multimeter
between the pins of the cordset connector. See
connectors illustrations in cordset pin tables.
Cordset
Check Pins
Approximate
Resistance
Values
At Room
Temperature
24P280,
Platinum 100
Ohm RTD
Cordset
D and E
107-115
ohms
24P283,
Nickel 120
Ohm RTD
Cordset
3 and 5
130-140
ohms
3. Replace the RTD if the resistance reading is
outside the range, or if there is no continuity. See
.
16
3A2805B
Summary of Contents for InvisiPac GS35 Plug-Free
Page 21: ...Notes Notes 3A2805B 21 ...