What the manual says
Manufacturer manualSystem water pressure has fallen to below 0.2 bar and the low pressure cut-out has been activated.
From this model's manual
Verified against the Grant Vortex Pro External Combi Installation Servicing Instructions DOC89 Rev00 May 2012 installation & service 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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Related fault codes
All 20 fault codes on the Vortex Eco External Floor Standing
Seeing a different code? Every code this model can display, in one place.
BURNER (FLASHING)BURNER indicator flashingBURNER indicator Slow flashCH PUMP indicator Fast flashCH PUMP indicator Slow flashDHW PUMP (FLASHING)DHW PUMP indicator Fast flashDHW PUMP indicator Slow flashGREEN blinking (0.5s)GREEN ORANGE blinking (0.5s)GREEN, RED blinkingGreen/Red flashingLock-out (light on)Lockout button litRED blinking (0.5s)RED fast blinking (0.2s)RED flashing (Reset button)RED, GREEN blinking invertedRED, ORANGE blinking inverted