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4. Troubleshooting
4-3 Checkpoints before service request
SYMPTOM
DIAGNOSIS
REMEDY
Oven is not working
(No power, No display)
* Measure an input voltage . (120V)
* Measure an input voltage of power cord
terminals .
* Check circuit breaker .
* Make sure that the power cord is
connected .
* Measure voltage of connector(CNP100) on
Main PCB L1~N : 120V
* Replace or repair if harness is loose or
disconnected .
* Make sure that the relay on Main PCB is
working correctly .
* Check if the harness inserted into the
relay on Main PCB
* Replace or repair harness .
* Replace Main PCB .
* Measure voltage regulator(REG101) on
Main PCB .
- REG101 : DC 5V
* Replace or repair harness .
* Replace or repair Main PCB .
* Check whether gas valve is opened
* Make sure that valve is opened .
Cooktop is not working
(Ignition problem)
* Check whether ignition spark is generated
from the electrode .
* Make sure that terminal of electrode is
connected to the spark module .
* Replace the electrode .
(in case of broken electrode or cut-off
wire .)
* Replace the spark module .
Oven temperature is
increasing too slow
* Check whether harness is connected to
Broil, Bake and convection heater
(Disconnected or Loosen)
* Repair and replace harness .
* Measure the resistance at the terminals of
the hot surface igniter (345Ω)
* Replace the hot surface ignitor .
* Measure the amperage of Safety valve
(3 .3/3 .6Amps)
* Replace the safety valve .
* Make sure that heater relay is working
correctly and pattern on Main PCB is
undamaged .
* Replace or repair relay .
* Replace or repair Main PCB .
Oven temperature
is increasing too fast
* Check whether temperature is rising over
400˚F(202˚C) within 10 minutes at room
temperature .
* If relay on Main PCB is shorted replace
Main PCB .
* Check whether harness is disconnected or
shorted .
* Replace the harness .
Keypad is notworking
properly
* Make sure that keypad cable on Sub PCB
is connected correctly .
* Replace the keypad in case it is shorted or
damaged .
* Make sure keypad connector is not shorted
or damaged .
* Replace or repair the keypad in case
cable is loose or disconnected .