Didn’t get any voltage across the heater element terminals on my WED9470WW1 Duet dryer. Pulled wires from high limit thermostat and thermal cutoff on the heater box. Got continuity on both. The heater element had continuity as well when tested with its wires removed from the terminals. Getting 240v from the outlet. Don’t know what to would be most likely culprit to check next. On the blower housing, the fuse has continuity, the only weird thing I found is that the thermistor has a resistance reading of 14k ohms. in 70 degree room temp. Heard these should be around 12k ohm. Could this cut the heat? Or is controller or controller relay higher probability of fault? Can the controllers relay be tested? BTW best video on the topic. Thank you !
Listed above.
- Pete R. asked 10 years ago
HI. Your themistor reading you got is with in range. It is testing good. I would check that you have 240v at your terminal block at the back of the unit. Make sure your wiring is not damaged. Then unplug the unit again and make sure you have plugged back in everything you have tested. I have attached the next step in that is listed in the tech sheet below.
- remove the P14
(P4 on Amana models) connector, then measure
the resistance between P14-3 (P4-3 on Amana
models) (red wire) and P14-6 (P4-6 on Amana
models) (red wire) at the connector. See figure 16,
page 22, for connector location; and Accessing &
Removing the Electronic Assemblies, page 21.
If 5–15 kΩ are measured,replace the
machine control electronics.
If the resistance is less than 1 kΩ,replace
the outlet thermistor.
Another test you can perform is checking the heat relay at the board. The heat relay will be a black box with 2 wires going to it. A red wire and a black wire. Put your meter terminals on each terminal of the relay (with wires attached). You should read 120 or 240 volts with the dryer off. Select a heat cycle on the dryer on turn it on. If the relay is working and closes you should read 0 volts on your meter as long as there is continuity through the heat circuit. IF so your relay is working. Attached is a link for your control board if you need it.
- Brian, Ace Appliance answered 10 years ago
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