Troubleshooting - Immergas Hercules Condensing 26 3 ErP Instruction And Recommendation Booklet

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Instruction and recommendation booklet (52 pages)

Instruction and recommendation booklet (52 pages)

Instruction and recommendation booklet (48 pages)

Table Of Contents

Table of Contents

2.6 TROUBLESHOOTING.

The Hercules Condensing ErP boiler signals

any anomalies by the flashing symbol (5) along

with the "ERRxx" indication on the indicator

(6) where "xx" corresponds to the error code

described in the following table. On the remote

control, the error code will be displayed by means

of the same numeric code represented according

to the following example (e.g. CAR

CAR = ERR>xx).

Error

Anomaly signalled

Code

No ignition block

Safety thermostat

block (overheat-

ing), flame control

or fumes thermo-

fuse anomaly

Flue safety thermo-

stat block

Contacts resistance

block

Flow probe

anomaly

Maximum N° of

reset

Insufficient system

pressure

Storage tank probe

anomaly

Configuration error

Fan anomaly

Parasite flame

block

General alarm

Return probe

anomaly

Push button control

panel anomaly

Block due to flue

gas temperature

gradient interven-

tion

Insufficient circula-

tion

(1) If the shutdown or fault persists, contact an authorised firm (e.g. Authorised Technical After-Sales Service).

= Exx, Super

Cause

In the event of request of room central heating or domestic hot water

production, the boiler does not switch on within the preset time. Upon

appliance commissioning or after extended downtime, it may be neces-

sary to eliminate the block.

During normal operation, if a fault causes excessive overheating internally,

the boiler goes into overheating block.

During normal operation, if a fault causes excessive flue gas overheating,

the boiler blocks

Safety thermostat fault (overheating) or flame control anomaly.

The board detects an anomaly on the flow NTC probe.

Number of allowed resets that have already performed.

Water pressure inside the central heating circuit that is sufficient to guar-

antee the correct operation of the boiler is not detected.

The board detects an anomaly on the storage tank probe.

If the board detects an anomaly or incongruity on the electric wiring, the

boiler will not start.

This occurs if the fan has a mechanical or electrical fault.

This occurs in the event of a leak on the detection circuit or anomaly in

the flame control unit.

This type of error is displayed on the CAR

in the event of faults or anomalies of the circuit boards or components not

directly connected to boiler management: anomaly on the zones control

unit, substation or solar circuit.

The board detects an anomaly on the return NTC probe

The board detects an anomaly on the pushbutton panel

If the board detects a rapid increase in flue gas temperature probably due

to a blocked circulating pump or lack of water in the heat exchanger, the

boiler shuts down due to the flue gas temperature gradient trip.

This occurs if there is overheating in the boiler due to insufficient water

circulating in the primary circuit; the causes can be:

- low system circulation; check that no shut-off devices are closed on the

heating circuit and that the system is free of air (deaerated);

- pump blocked; free the pump.

or Super CAR remote control

Boiler status / Solution

Press the Reset button (1)

The boiler does not start (1)

Attention: the anomaly can be reset 5 times

consecutively, after which the function in

inhibited for at least one hour. One attempt

is gained every hour for a maximum of 5

attempts. By switching the appliance on and

off the 5 attempts are re-acquired.

Check on the boiler pressure gauge (1) that

the system pressure is between 1÷1.2 bar

and restore the correct pressure if necessary.

The boiler cannot produce domestic hot

water, domestic water heating is carried

out by the solar system and Pdc (1).

If normal conditions are restored the boiler

restarts without having to be reset (1)

Press the Reset button (1)

(1)

The boiler does not start (1)

If normal conditions are restored the

boiler restarts without having to be reset

(1)

Press the Reset button (1)

Press the Reset button (1).

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