Hot Minor Easy DIY

Frigidaire Dishwasher Hot — Water inlet too hot

Frigidaire Dishwasher · Error code Hot

What Hot Means

The dishwasher detected incoming water above the safe range (often >150°F). This protects detergent activation chemistry and the rinse-aid system.

Symptoms

  • 'Hot' shown shortly after start
  • Cycle won't progress past fill
  • Most common right after another hot-water appliance ran

Common Causes

1
Household water heater set too high

Heater above ~140°F can spike inlet temp.

2
Dishwasher hooked to hot-only line at very high temp

Long run from a tankless or boiler can deliver near-boiling water.

3
Faulty thermistor reading high

Less common — sensor drift on the in-tub temperature probe.

How to Fix It

  1. Run the kitchen-sink hot tap for 30 seconds, then start the dishwasher again.
  2. Lower the water-heater thermostat to ~120°F.
  3. If on a recirculating loop or tankless, install a tempering valve at the dishwasher feed.
  4. If error persists with normal household water, test the in-tub thermistor for correct resistance vs temperature.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Frigidaire dishwasher thermistor / temperature sensor View on Amazon→

More Frigidaire Dishwasher Codes

Cd Cd — Clean indicator CL CL — Close the door ER ER — General electronic control fault HS HS — Heater sensor fault i10 i10 — Water Not Detected (Fill) i20 i20 — Drain Blocked

All Frigidaire codes → All dishwasher codes →

Verified against manufacturer documentation: frigidaire.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.