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Heater Troubleshooting
AC Heaters
Resistance
Air Duct Heater ***
578
Defrost Heater * (See
Defrost Heater
.)
31
Double Drawer Mullion Heater * (See
Double Drawer Mullion Assembly
.)
827
Duct Port Heater ***
1200
Freezer/Fresh Food Mullion Heater *** (See
Fresh Food/Freezer Mullion Heater
.)
1653
Return Duct Heater LH *** (See
Return Duct Heaters
.)
440
Return Duct Heater RH *** (See
Return Duct Heaters
.)
440
Supply Duct Heater ***
1653
* Replaceable individual heater
** Replaced as door assembly
*** Not replaceable
Note:
• Air Duct and Supply Duct heaters will come on with abnormally high door open time and high humidity.
(Abnormal = approximately 70 fresh food door openings for 12 seconds or more in a 16 hour period.)
• Duct Door heater, Door Gasket heater, and Recess heater are on 100% of the time when the freezer set
temperature is 4°F or lower. Above 4°F heater on-time will vary.
• Duct Port heater is located around ice compartment port holes, and cycles on temperatures and ice
compartment conditions. (Mid-settings = heater on time approximately 30%)
• Fill Tube heater will be on after water valve activation or when ice is dispensed.
DC Heaters
Resistance (Approximate)
Door Gasket Heater **
62
Duct Door Heater * (See
Dispenser and Interface
.)
109
Fill Tube Heater **
300
French Door Vertical Mullion Heater * (See
Articulating
Door Mullion
.)
24
Recess Heater **
145