Problem with clothes dryer not getting hot enough: How do you test a sensor?

Mar 21, 2013 40 Replies

On Wednesday, March 27, 2013 10:36:17 PM UTC-4, Amanda Ripanykhazova wrote:

nesday, March 27, 2013 9:09:07 AM UTC-4, Amanda Ripanykhazova wrote: > On T uesday, March 26, 2013 4:25:48 PM UTC-4, Mark wrote: > ok, most of these ar e NOT refrigeration based... > > but this paragraph is relevant to the Op > > > > With most current standalone condenser dryers, it is necessary to >

ne needs to slide out the condenser module and wash off any > > accumulated lint. Thus condensers require a bit more "work" than > > vented dryers - a lthough this may entail less actual effort than the > > recommended annual ductwork cleaning for vented dryers (which is very > > important for both p erformance and fire safety reasons!). > > > > Mark Good idea but there is n o material trap of any type to clean out, whether condenser or not. Yes it does hum a bit but I hadn't thought that this was relevant to why it doesn' t dry well. It also habitually grinds a bit which sounds wrong but there ag ain, it doesn't seem relevant. Again, I know that the sensor is commonly re placed but am reluctant to waste money by putting a replacement in if the p roblem is with the element. I suspect the only thing which is going to help me is finding out where that grey wire goes on this unit. As the service/i mporter wouldn't tell me, I suppose I may have to ask the manufacturer in I taly who I am sure isn't set up to respond to this type of question. Then h ope that if I connect it correctly, the heater will suddenly spring to life . If anyone knows where there may be a wiring diagram for this unit under a ny of the plethora of names which are used, I would appreciate it as I am r easonably sure there isn't much wrong with the sensor or the element! > > > > It's common for manufacturers to tape a folded up wiring diagrahm and sc hematic inside appliances. This keeps the service guys from having to haul around hundreds of them. You have a combination washer, condensing dryer. I t does not add water to the clothes during the drying cycle but may use wat er to cool the condensing unit. They are not usually very good at drying bu t make up for it some by having a really high spin cycle at the end of the wash phase. And if you do not have a outside vent there's not much you can do > > > > I don't know your specific model but generally there are several temp sensors on the drying cycle as well as possibly a moisture sensor. Th e temp sensors may include ones to prevent it from going over a certain tem p while running as well as a safety sensor that has a higher temp. Often th e safety one is a one-shot, once it has been tripped it must be replaced. T hat's on the theory that some other failure caused it to be tripped and the appliance needs other work as well as a new safety temp sensor. > > > > Fi nding the schematic is going to be very helpful. Some google searches might help you as many manufacturers also make theoir schematics available onlin e. These are also not super complicated so it is possible to trace the heat ing circuit out by hand. And a volt ohm meter would help a lot with this an d with trouble shooting in general. As a general rule the temp sensors will be closed when cool if they are wired in series with the heating element. If they are connected to a main control board they may be open when cool an d closed when hot. You can check these with a hair dryer. You can also chec k for continuity of the heating element. If you can get enough covers off t o get to the heating element but still be able to run the unit you can also check for voltage at the heating element while it is running. No, I have h ad this thing apart numerous times and there is no wiring diagram in it. Bu t the sensor idea is a good one as the one next to the replaceable one does look a bit burned (again, the plastic cover, not the spades themselves)

Well you might try the internet for a schematic or wiring diagram. Dependi ng on price replacing suspect parts sometimes gets you going again. But an y good repair person will say that the first step is understanding how it w orks so you can acurately troubleshoot each component.

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