Norcold AC Heater/ Heating Element 638374/ 50822 (fits the Polar N7/ N8/ N10/ and newer N6XX/ N8XX/ N1095 models)

This AC heater/ heating element replaces the Norcold 630811.
The Dave Carter & Associates new part number is 50822 and is the exact same as the 638374.

Fits these Norcold refrigerator models:

• N7V series: N7V, N7VF
• N7X series: N7X, N7XF, N7XFR, N7XFL, N7XC
• N7LX / NA7LX series: N7LX, N7LXR, N7LXIM, N7LXIMF, NA7LX, NA7LXR, NA7LXF, NA7LXIM, NA7LXIMF
• N8V series: N8V, N8VF
• N8X series: N8X, N8XF, N8XFR, N8XFL, N8XC, N8XCF
• N8LX / NA8LX series: N8LX, N8LXF, N8LXIM, N8LXIMF, NA8LX, NA8LXF, NA8LXIM, NA8LXIMF
• N10LX / NA10LX series: N10LX, N10LXC, N10LXIM, NA10LX, NA10LXC, NA10LXIM
• N610 / N611 series: N610, N611, N611C, N611F, N611J, N615, N611V, N611VF
• N810 / N811 / N814 series: N810, N811, N811C, N811F, N811J, N814F2, N811V, N811VF
• N621 / N623 / N624 series: N621, N621C, N621F, N621CF, N621SS, N623, N624
• N821 / N822 / N823 / N824 series: N821, N821C, N821F, N821CF, N821BK, N821BKF, N821SS, N821V, N822, N822F, N823, N824
• N1095 series: N1095, N1095C, N1095IM, N1095IMC, N1095V, N1095IMV, N1095BK, N1095CBK, N1095BKV, N1095IMBK, N1095IMCBK, N1095SS, N1095CSS, N1095IMSS, N1095IMCSS, N1095WH

Also fits Norcold replacement refrigerators 693230SP (N7X) and 693234SP (N8X).

Troubleshooting 

Potential problems that a new ac heater/ heating element could solve:

• N7X or N8X red light flashing one time
• N611 or N811 red light flashing three times
• N621 or N821 displaying an "n" code
• N641 or N841 displaying "ac he" code
• N1095 displaying "ac he" code
• No cooling on AC mode
• Insufficient cooling on AC mode

Installation

Time: 30 minutes or less

Tools:

• PB Blaster (optional)
• Rubber mallet (optional)
• Phillips head screwdriver
• Gloves

Steps:

• Turn refrigerator off for several hours to let things cool down on and around the cooling unit
• Unplug refrigerator from the AC outlet in the back and turn refrigerator off from front control panel
• Remove power board cover
• Take a picture of the board before disconnecting AC wires
• AC heater wires are labeled AC HT HI and AC HT LO (both leads are interchangeable)
• Follow the wires over to the flu
• The AC Heating rod drops down into a slot on the flu that is buried within the insulation.
• Remove tin shroud that is holding insulation around the flu and locate the AC heater/ AC heating element
• If the AC heater does not slide out easily, you may need to use PB Blaster or Liquid Wrench to break up corrosion. Gently tap with a rubber mallet and it should come out just fine.
• Slide new AC heater into the old slot and connect its wires in place of the old. 
• Once everything is connected, turn refrigerator on and plug it back in to verify that there is no AC heater fault displayed.