Failure Of Heating Elements - Samsung NV75N7570RS Service Manual

4-2-12 Failure of heating elements

Failure of heating
elements
- Check heater's terminal
voltage (230~240V)
NO
- TCO Open?
NO
- Check Relay Terminal Volt-
age (230~240V)
NO
Perform 'PCB Check Process'
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YES
• After removing Heater Wire
- Check Heater resistance (Large G :32.8Ω,
Small G:48.6Ω, Bottom : 48.1Ω, Conv:44Ω)
YES
- Repair Faulty wiring
(Possible terminal contact failure)
YES
- Upper convection heater failure?
- Replace the Lower TCO
YES
- Repair Faulty wiring
(Possible terminal contact failure)
NO
YES
No
- 35 -
Replace heater
Replace the Grill TCO