Ideal Intermittent Control Signal to Boiler

Thermostat clicks and calls for heat but boiler only fires intermittently

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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

Loose connection at wiring centre, Failing RF receiver relay contacts, Corroded terminal screws, Shared neutral issues

How to Fix / Troubleshooting

Safety first: Isolate mains power before opening wiring centres or receivers.

Steps:

  • 1. Observe boiler input: When the thermostat calls for heat, check if the boiler's call for heat terminal consistently receives voltage (use a multimeter if competent).
  • 2. Tighten all terminals: At the wiring centre and RF receiver, tighten all live, neutral, and earth terminals associated with the heating controls.
  • 3. Inspect for corrosion: Look for green/white corrosion on copper conductors. Cut back and re‑terminate if necessary.
  • 4. Replace RF receiver: If the relay contacts are pitted or burnt (visible signs of arcing), replace the Ideal RF receiver.
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Repair Difficulty

Medium 3/5

Required Part

Ideal RF Receiver
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