Washer-dryer combo shows E5 and stops heating water; cycles may run with only cold water.

Safety first: Unplug the unit before accessing internal components. Heating circuits can store energy; wait several minutes after unplugging.

• Confirm symptom: Run a hot wash cycle and feel the door glass after 15–20 minutes. If it remains cold and E5 appears, a heating fault is likely.
• Access heater: On many Danby combos, the wash heater is mounted at the rear or bottom of the tub. Remove the rear or lower panel to locate the heater terminals and temperature sensor.
• Inspect wiring: Check for loose connectors, burnt terminals, or damaged wires at the heater and NTC sensor. Reseat or repair as needed.
• Test heater element: With a multimeter, measure resistance across the heater terminals. An open circuit indicates a failed element that must be replaced.
• Test NTC sensor: Measure resistance of the NTC temperature sensor at room temperature and compare to Danby specifications (typically in the tens of kΩ). A shorted or open sensor will cause E5.
• Control board: If heater and sensor test good but there is still no heat and E5 persists, the main control board heater relay or triac may be defective. Board replacement is usually required.