Monarch
Partial Softening / Incorrect Plumbing
Softener appears to work but hot water remains scaled or hard
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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
Hot cylinder not connected to softened supply, Kitchen cold tap left on hard supply, Bypass or mixing valve allowing hard water into hot system
How to Fix / Troubleshooting
Safety first: Hot water systems can be dangerous; do not alter boiler connections unless qualified.
- Trace pipework: Confirm that the cold feed to the hot water cylinder is taken from the softened supply, as per Monarch installation guidelines.
- Check mixer valves: Some thermostatic mixers blend hard and soft water. Verify their connections and settings.
- Test multiple outlets: Use a hardness test kit on several taps (hot and cold) to map where soft water is actually delivered.
- Consult installer: If plumbing is incorrect, a qualified plumber should reconfigure the system.
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Repair Difficulty
Medium
3/5
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