Samsung DV316LGW/XAA Service Manual page 45

No Problem
Will Not Start or Run
1
2 Motor runs/ tumbler will not turn
Runs a few minutes and then
3
stops
Blows fuses or trips circuit
4
breaker
Blows fuses or trips circuit
5 breaker
(Gas Model)
6 Will not heat (motor runs)
Will Not Dry Gas Model
7 Poor Gas Ignition
8 The igniter does not glow
9 Igniter glows - No gas ignition
The gas is ignited but the fl ame
10
goes out
Improper drying
clothes wrinkled
11
Rough texture
long dry time
12 Noisy and/Or Vibration
6-2
• All wires are hooked up to their corresponding terminals.
• Dryer is plugged in.
• Blown fuse or circuit breaker.
• Door switch functional...door closed. Check for error code 3 (See Table for code
defi nition).
• Start/Pause rotary selector dial functional.
• Control Board operational.
• Belt off or broken and Belt Cut-off Switch operates.
• Drive motor functional.
• Check motor winding resistance: 2.88ohms between pin #3 and 4, 3.5ohms
between pin #4 and 5.
• Belt off or broken/damaged.
• Idler tension spring too weak or stretched.
• Idler pulley jammed or stuck.
• Lint buildup around drive motor.
• Low voltage present.
• Blower impeller blocked in blower housing.
• Drive motor - start switch contacts stuck closed.
- Is the belt connected well?
- Is the winding of the motor continuous?
(Rotor winding, stator winding, generator)
- Is the motor protector normal?
• If above points are not found, the PCB assembly is out of order.
Replace it.
• During ignition the dryer will draw X amps. With the burner ON, the dryer will
draw X amps. If the dryer is drawing amperages above this, then the house
wiring, fuse box or circuit breaker is suspected to be at fault.
• Igniter harness loose and shorted to base.
• Incorrect wiring or wire shorted to ground.
• Drive motor winding shorting to ground.
Open heating element.
• Hi-Limit trips easily or is open.
• Regulating thermostat trips easily or is open.
• Membrane switch open.
• Check Thermistor.
When the dryer is operated on a heat setting, the igniter should be energized and
burner shall fi re within 45 seconds at 120 VAC. The failure of a component in this
system will usually be indicated by one of three symptoms:
If the igniter does not heat up, remove power and using an ohmmeter, check the
following:
• Open fl ame sensor
• Open igniter
• Shorted booster coil
• Open wiring
• Bad motor switch ( Neutral supply)
• No power from control ( L1 supply)
If the igniter heats up but the main burner fl ame is not ignited, remove power and
using an ohmmeter, check the following:
• Open secondary coil
• Open holding coil
• Open wire harness
• Stuck fl ame sensor (Stuck closed)
If a normal ignition takes place and after a short while the fl ame 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
• Lint fi lter is not clean.
• Restriction in exhaust.
• Outside exhaust hood damper door stuck closed.
• Exhaust too long, too many elbows, fl ex 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 insuffi cient spin out by washer.
• Thumping Check for loose tumbler baffl e, 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 position 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.
What To Do