High
H5 on Ideal HP290

Your heat pump is detecting an electrical overload in its power management system and has prevented itself from running to avoid damage.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Inverter High Current (L1E/L11/L12) 3 times within 60mins

From this model's manual
Verified against the Ideal Hp290 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Avoid the next call-out bill

A cover plan would handle faults like H5: no call-out fees, no surprise bills.

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