Appliance won't heat or won't start?
BySymptom
Won'tHeat
Safety-firstDiagnostics
Short, safety-first diagnostic guides by symptom and brand, with links to find the right part for your exact model.
Latest
- Electric oven not heating? Breaker reset, door, control lock, then the bake element
- Furnace won't turn on at all? Thermostat, switch, breaker, filter, then when to call
- Electric water heater not heating? Breaker, reset button, then the elements
- Heat pump blowing cold air in heat mode? Normal vs. broken, free checks first
- Gas furnace running but blowing cold air? Free checks first, then the flame sensor
- Gas water heater pilot won't stay lit? Safe checks first, then the thermocouple
- Whirlpool dryer runs but won't heat? Start with Whirlpool's checklist
- Gas oven not heating but the stovetop works? Start here
- Samsung dryer not heating: which of 3 parts to test first