Written by
Daniel Reyes Appliance SpecialistPublished October 20, 2026
Error codeTh
ApplianceDishwasher
Quick answer
Th on Frigidaire electronic series dishwashers FGHD2465NW/NB reports a detected thermistor failure.
Model compatibility: Frigidaire reuses codes across series and model years, so Th may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Th flashes on the display when a thermistor failure is detected.
A flashing Th on a Frigidaire electronic series dishwasher is the display’s way of reporting a detected thermistor failure.
Covered models
The code is documented for the electronic series dishwashers FGHD2465NW and FGHD2465NB in service data sheet 154889701.
What to expect
The sheet is meant for people with electrical and mechanical training in the appliance repair trade. It tells owners nothing to try, so thermistor checks belong to a technician.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Frigidaire appliance?
Book a specialist visit for a clear estimate and approval before any repair.
