Thermador PDR30, PRG48, PRG30 WTA 35 & WTL 54 Fault Codes & Troubleshooting, Fault code, Problem

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WTA 35 & WTL 54 Fault Codes & Troubleshooting

HINT: Use dryer test program to diagnose dryer problems.

HINT: Remove top panel of dryer to access wiring, control module and drum conductance brushes.

Fault code	Problem	Possible Cause	Suggested Action
Damp Dry	NTC # R3 failed	NTC (temperature	Check voltage at and wiring to NTC.
Light flashes		sensor) failed.	Turn off dryer, measure NTC
	NOTE: When viewing		resistance and replace faulty NTC.
	wiring diagram, see NTC		NOTE: NTC resistances:
	# R3.
			9 – 11 kΩ @ 59°F - 221°F
Regular Dry	NTC # R2 failed	NTC (temperature	Check voltage at and wiring to NTC.
Light flashes		sensor) failed.	Turn off dryer, measure NTC
	NOTE: When viewing		resistance and replace faulty NTC.
	wiring diagram, see NTC		NOTE: NTC resistances:
	# R2.
			18 – 22 kΩ @ 59°F – 392°F
Extra Dry	Heater (dryer	Heater failed.	Check voltage at and wiring to
Light flashes	overheated)		heater. Turn off dryer, measure heater
			resistance and replace faulty heater.
			NOTE: Heater resistances:
			62 – 67 Ω (800W – E2 on wiring
			diagram on page E-2)
			25 – 29 Ω (1900W – E3 on wiring
			diagram)
		Drum motor failed.	Check voltage at and wiring to drum
			motor. Turn off dryer, measure
			motor resistance and replace faulty
			motor.
			NOTE: Drum motor resistances (see
			wiring diagram):
			19 – 25 Ω (between points X2.2 –
			X2.3 for WTL 54)
			18 – 23 Ω (between points X2.2 –
			X2.4 for WTL 54)
			25 – 29 Ω (between points X2.2 –
			X2.3 for WTL 35)
			25 – 30 Ω (between points X2.2 –
			X2.4 for WTL 35)

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