Samsung DV438. - Manual (Page 7)

7
WARNING
To avoid risk of electrical shock, personal injury or death; disconnect power to dryer
before servicing, unless testing requires power.
TROUBLE SHOOTING
8 The igniter does not
glow
If the igniter does not heat up, remove power and using an
ohmmeter, check the following:
• Open flame sensor
• Open igniter
• Shorted booster coil
• Open wiring
• Bad motor switch ( Neutral supply)
• No power from control ( L supply)
9 Igniter glows - No gas
ignition
If the igniter heats up but the main burner flame is not ignited,
remove power and using an ohmmeter, check the following:
• Open secondary coil
• Open holding coil
• Open wire harness
• Stuck flame sensor (Stuck closed)
0 The gas is ignited but
the flame goes out
If a normal ignition takes place and after a short while the flame
goes out, check for the following:
• Radiant sensor contacts opening prematurely.
• Weak gas valve coil may open when stressed by higher
Temps.
• Weak Hi-Limit
• Poor venting
• Bad drum seals

Improper drying
clothes wrinkled
Rough texture
long dry time
• Lint filter is not clean.
• Restriction in exhaust.
• Outside exhaust hood damper door stuck closed.
• Exhaust too long, too many elbows, flex ductwork installed.
• Poor intake air available for the dryer.
• Incorrect tumbler speed. Tumbler belt slipping.
• Blower impeller bound; check for foreign material in blower
area.
• Customer overloading dryer.
• Check clothing labels for fabric content and cycle selected.
• Clothes too wet due to insufficient spin out by washer.
2 Noisy and/Or
Vibration
• Thumping Check for loose tumbler baffle, rear tumbler roller(s)
worn or misaligned, out-of-round tumbler or high weld seam
on tumbler.
• Ticking Check for loose wire harness or object caught in
blower wheel area.
• Scraping Check for front or rear bulkhead felt seal out of posi-
tion or worn tumbler front bearings.
• Roaring Check for blower wheel rubbing on blower housing or
bad motor bearings.
• Popping or squealing sound. Check for a sticky or frayed belt.
Technical_information-02365B.ind7 7 2008-06-25 ¿АИД 5:24:24