GE French Door water dispenser not working

[Jerrilyn]

Model Number: PFSS6PKXASS
Brand: GE
Age: 6-10 years

Water dispenser was not working. Removed water tank cover and blew hot air behind tank and that solved the issue. Now 5-7 days later dispenser not working again! Freezer and fresh food compartments are set at 0 and 38 degrees respectively (assuming temperature read-out on control panel is correct). My limited understanding is that there is a heating element behind the water tank. Could this be the problem? If so, can you provide me with step-by-step instructions to replace and the part numbers I would need to order.

[Jerrilyn]

Can anyone help me with removal and installation instructions for the water tank assembly heater for the French door GE model above.

[Doc Ryan]

Please see the attached PDF instruction sheet below.
tank heater.pdf