Morphy Richards
Hot Plate Relay Stuck / Thermostat Failure
Hot plate stays on continuously or overheats, even when the machine is off.
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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
Stuck relay on control PCB, Shorted thermostat contacts, Miswired hot plate, Control PCB logic fault
How to Fix / Troubleshooting
Safety first: Unplug the coffee maker immediately if the hot plate remains hot when switched off.
- Do not use: Continuous heating is a fire risk. Leave the unit unplugged until repaired.
- Inspect control PCB (advanced): Remove the base and locate the hot plate relay on the PCB. Look for signs of burning or melted plastic.
- Check thermostat: Test the hot plate thermostat for proper operation; if it is welded closed, replace it.
- Replace faulty components: Replace the control PCB or relay and thermostat as needed. This work is best done by a qualified technician.
Do not attempt to bypass safety components. The appliance should not be used until the fault is corrected.
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Repair Difficulty
Professional Required
5/5
Required Part
Hot Plate Thermostat / Control PCB Relay
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