How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Bryan Your Own Question

Bryan
Bryan, Home Appliance Technician
Category: UK Appliance
Satisfied Customers: 12074
Experience:  EPA Certified HVAC
10522817
Type Your UK Appliance Question Here...
Bryan is online now
A new question is answered every 9 seconds

Hiya. Bosch Exxcel Tumble Dryer WTA4107GB/01. Doesnt heat

Resolved Question:

Hiya. Bosch Exxcel Tumble Dryer WTA4107GB/01. Doesn't heat properly, seems to cut out a lot so load doesn't really get warmed up and takes ages to dry, if at all. Voltmeter across heating element reads 235v on and off but only for short periods of time. I have checked all three control thermostats by the simple means of bypassing them but it doesn't seem to make any difference. I can hear something clicking as the heat comes on and off. Is there another thermostat somewhere which I'm missing or is there one built into the heating element? Element resistance is 20.7 Ohms. Is this what's failing?
Submitted: 1 year ago.
Category: UK Appliance
Expert:  Bryan replied 1 year ago.
Can you try something ? remove the vent completely from the dryer. run a load, Does it heat up fully then ?
Customer: replied 1 year ago.

I have already removed the dryer from it's normal site so it is sitting on the floor in the middle of the room with no vent hose attached. It still doesn't heat properly.

Expert:  Bryan replied 1 year ago.
How strong is the airflow out of the back ?is it real strong ?
Customer: replied 1 year ago.

It's pretty good, not really strong tho'.

Expert:  Bryan replied 1 year ago.
Okay, this should be flowing really strong out of the vent. If its not strong the thermistor will shut the heat down . I cant find the diagrams for this however. can you take the dryer apart and clean inside ? the blower assembly is most likely clogged.
Customer: replied 1 year ago.

I'll give it a go and let you know.

Expert:  Bryan replied 1 year ago.
okay check for lint blocking the airflow.
Customer: replied 1 year ago.

Just took the back off and ran it (disconnected heater first!) and blower assembly is cleanseems to run fine. I ought to have said that a few months ago the overheat thermostat (with the red button) kept tripping. I took the machine apart and cleaned out all the internal ducts (I think it's 5-6 years old!) and it seemed ok then until this problem occurred. When it first happened I immediately went to reset it but the thermostat hadn't tripped. I also checked the thermostats and they do trip when heat is applied. Do you think something may have been damaged due to the previous overheating thing.

Expert:  Bryan replied 1 year ago.
You may be on to something there . can you run this and determine if that clicking you hear is comming from the control board ? Bosch Control Module, Wta 3500 UC/04-10 (see 481590 for Uc/ 265677 from AppliancePartsPros.com
Customer: replied 1 year ago.

Right, tried that. The control board isn't identical to your pic but similar and mounted on the RHS of the casing back a bit from the switch assembly. That right? Anyway, when I ran it this time it was clicking like mad and the voltage across the element was jumping around a bit until it finally went to zero, as usual. May be on to something here!

Expert:  Bryan replied 1 year ago.
okay thats the issue then. the board is bad (the heat relay on it isn't holding in) you will need to replace the board. good job ! thanks , Bryan
Bryan, Home Appliance Technician
Category: UK Appliance
Satisfied Customers: 12074
Experience: EPA Certified HVAC
Bryan and 3 other UK Appliance Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
< Last | Next >
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Rob

    Home Appliance Technician

    Satisfied Customers:

    2446
    20 yrs. experience with a major worldwide manufacturer.
< Last | Next >
  • http://ww2.justanswer.com/uploads/RO/royzee1/2012-10-11_16153_serviceengineers.64x64.jpg Rob's Avatar

    Rob

    Home Appliance Technician

    Satisfied Customers:

    2446
    20 yrs. experience with a major worldwide manufacturer.
  • http://ww2.justanswer.com/uploads/drcool299/2008-12-16_113651_francis.jpg Drcool's Avatar

    Drcool

    Home Appliance Technician

    Satisfied Customers:

    464
    i am an expert in the Home Appliance category in the US. been in the field for more than 12 years.
  • http://ww2.justanswer.com/uploads/FO/Forryone/2012-2-19_114121_Celebration2001DavidandJohn.64x64.jpg The Famous Forry's Avatar

    The Famous Forry

    Home Appliance Technician

    Satisfied Customers:

    343
    I have my own business in the Domestic Appliance Repair established 1980
  • http://ww2.justanswer.com/uploads/NE/Neilwill/2011-2-4_155447_Neilspicture.64x64.JPG NeilWill's Avatar

    NeilWill

    Home Appliance Technician

    Satisfied Customers:

    302
    Repaired appliances over seas in europe and Middle east .
  • http://ww2.justanswer.com/uploads/DO/dontrudeau/2012-6-7_2725_DON.64x64.jpg Appliance Tech-Care's Avatar

    Appliance Tech-Care

    Appliance Technician

    Satisfied Customers:

    197
    35+ Yrs Experience - 40,000+ 'Real World' Repairs
  • http://ww2.justanswer.com/uploads/PI/pippopippo/2012-6-7_17229_IMG92398b.64x64.jpg DaddyG's Avatar

    DaddyG

    Technician

    Satisfied Customers:

    102
    Qualified appliance tester
  • http://ww2.justanswer.com/uploads/TH/TheHomeSmithy/2011-8-13_11146_homesmithy.500x500.64x64.jpg The Home Smithy's Avatar

    The Home Smithy

    Appliance repairman

    Satisfied Customers:

    78
    Appliance repairman
 
 
 
Chat Now With An UK Appliance Technician
Bryan
Bryan
Tech/owner
78 Satisfied Customers
EPA Certified HVAC