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DV42H5200EW/A Samsung dryer runs, just no heat

tmol

Premium Member
Joined
Jan 21, 2011
Messages
276
Location
florida
Model Number
DV42H5200EW/A
Brand
Samsung
Age
1-5 years
can a centrifugal motor switch cause a no heat dryer. all other components test good and no error codes . traced red power wire from centrifugal switch to heater element.
thanks t mol
 

jeff1

Appliance Tech - Moderator
Staff member
Joined
Oct 10, 2004
Messages
24,246
Location
Ontario, Canada
Hi,

Yes.

Try ( as a test only ) joining the wires together to see if the heat will then come on.

jeff.
 

bigbuck

Appliance Tech
Staff member
Joined
Mar 19, 2015
Messages
1,496
Location
From Planet Mars
The motor has two sets of contacts. One for the heating circuit the other for the centrifugal sense pin on the main board. It senses whether or not the motor is running by watching the state of that set of contacts. The first thing I do on a no heat is remove the top put it in a timed cycle, hit start and listen closely for the heater relay to close, if it does troubleshoot heater circuit. If relay does not close troubleshoot motor switch circuit, second set of contacts. Check continuity of that wire down to the motor, pull plug and look for a bent pin on the motor, pull the centrifugal switch by hand, check the centrifugal switch contacts between motor pins # 5 & 6 and 1 & 2. You usually find a bent pin or no continuity between pins 5 & 6 .
 

tmol

Premium Member
Joined
Jan 21, 2011
Messages
276
Location
florida
jump out black relay on new control board. heater came on . but now lost display board will not light up or power on.
t mol
 
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