Ferroli
Temperature Instability / Cycling
Water temperature fluctuates between hot and cold during a shower.
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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
Flow sensor intermittently failing, Oversized or undersized flow rate, Partially blocked plate heat exchanger, Faulty modulation control on PCB
How to Fix / Troubleshooting
Safety: Be cautious of sudden hot surges while testing.
- 1. Stabilize flow: Avoid opening and closing other taps while showering. Set a steady flow rate at the shower mixer.
- 2. Clean filters: Clean inlet filters and shower head to ensure consistent flow.
- 3. Flow sensor: Clean or replace the Ferroli flow sensor/turbine if it is sticking.
- 4. Plate heat exchanger: Have a technician check and, if necessary, chemically clean or replace the plate heat exchanger.
- 5. PCB modulation: If fluctuations persist, the PCB modulation control may be faulty and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Plate Heat Exchanger
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