Dryer ONLY runs with heat turned off.

[Amez530]

Model Number: NS-FDRE67WH8A
Brand: Other
Age: 1-5 years

I bought an insignia dryer from Best Buy about a year and 7 months ago and last week I noticed that it didn’t seem to be heating properly as I had to dry clothes longer then now it doesn’t heat at all. It’ll turn on and run if I have it on NO HEAT but if I set it on HIGH MEDIUM LOW OR ULTRA LOW then it’ll turn off immediately after starting. I tried testing all the components that has to do with the heating system but they all seem fine.

[Doc Ryan]

You can access the service manual for this dryer here. Have you checked the dryer for any error codes?

[Amez530]

Thank you for that link ! And yeah I did but I’m not sure what I’m looking for? I did all the steps for TEST MODE and nothing really stood out as a code? In step 4 it says that 04 ntc test will pop up but it’ll show 04 then “21” then in step 5 it’ll operate but when that happens it shuts off after a few seconds

[Doc Ryan]

Have you checked the heating element for a short?

[Amez530]

I just double checked right now I took the unit out of the machine and tested both the thermostats on it for continuity and checked the coils as well.

[Amez530]

I also just checked thermostat 1 which was 00.1-00.2 and the door switch, the belt cut off switch and the thermistor which was 52.0. The Manual shows a thermal fuse but I couldn’t locate that to test it.

[Doc Ryan]

Have you verified that the power supply to the dryer is good?

[Amez530]

The outlet? Yeah so it read 119v each side then 234-238 across

[Doc Ryan]

That's a good reading. My guess would be that one of the control boards is failing. I don't have any other ideas for you to check at this time. If you find the solution, let me know what it is.

[Amez530]

Is there a way I can test the control board?

[Amez530]

Doesn’t look like there’s anyway to test the motherboard or control board.. what do you suggest I do? Have someone come check it out ? Or buy those parts and see if that does the trick? They don’t seem too expensive but at the same time I don’t wanna just throw money at it .

[Doc Ryan]

It's really up to you. You could compare the cost of the hiring a repair person versus the cost of the part and see if it is worth the gamble.

[Amez530]

Yeah I just went ahead a bought a control board and hope that resolves the issue but if not I’ll go ahead with getting a professional out here to check it out ����

[Doc Ryan]

Great, let me know what you find out.

[Amez530]

Okay I replaced the motherboard and it did nothing. I also replaced the thermistor and that seemed to fix the problem with it shutting off while in any heat mode but there’s still no heat?

[Amez530]

I ran it with the back plate off and the heating assembly doesn’t seem to be producing any heat at all.

[Doc Ryan]

Have you tested the heating element and fuse(s)?

[Amez530]

What are the fuses? I tested the thermostats on the heater assemble and they both had continuity I tested the heater terminals and they had continuity I took the assembly out and couldn’t see any breaks in the coils. The manual shows a temp fuse, temp sensor and temp switch but I can’t locate the temp fuse on it?

[Amez530]

Ok so now idk what happened but I tried it again and now it’s getting heat but I’m looking at the heater assembly and I see red coils but then I also see some that aren’t red. Is that normal or should they all be red?

[Amez530]

Okay and now it stopped heating again