Operation Lights - Biasi riva User Manual

Wall hung gas boiler for central heating supply

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4. Operation Lights

Three lights (8 in Fig. 3.2) give detailed indication regarding the operation of the boiler.

The following table gives the relationship between each of the possible light combinations

and their meaning.

Lamp OFF

RIVA HEAT ONLY USER MANUAL – REV A

A short pulse every 4 seconds: stand-by condition

Function selector in

1 second pulse every 2 seconds: normally operating boiler.

Function selector in on position

Central heating operation

Frost protect operation

Faulty central heating temperature probe NTC

Faulty primary circuit (no water or absence of flow)

Lack of burner ignition (no ignition signal from the full

sequence ignition device

Ignition gas pressure adjustment

Minimum gas pressure adjustment

Lamp ON

position. Anti-freeze system active

Flashing lamp, alone

or simultaneously

with another lamp.

Flashing lamp,

alternate with

another lamp

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