Gram
Underheating / Extended Preheat Time
Oven heats but cannot reach set temperature or takes excessively long to preheat.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Partially failed heating element, Faulty temperature sensor calibration, Heat loss through damaged door seal, Incorrect installation causing heat loss at rear
How to Fix / Troubleshooting
Safety first: Turn off power before mechanical checks.
Steps to check:
- Use an oven thermometer to compare actual temperature to the set value. Note any large deviation (>20°C).
- Inspect the door gasket for gaps, tears, or compression; replace if not sealing evenly around the door.
- Check that all elements glow or heat when their respective modes are selected. A partially open element may still warm but not reach full power.
- Test the temperature sensor resistance at room temperature and at a known higher temperature (e.g., 100°C in hot water, disconnected). Replace if readings are out of specification.
- Ensure the oven is correctly installed with proper insulation and no large gaps around the cabinet that could cause heat loss.
Warning: Avoid touching elements during testing; they become extremely hot.
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Repair Difficulty
Medium
3/5
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