Intergas Heating Ltd 46
9.2.3 Burner resonating
Gas supply pressure too low.
The house pressure switch may be faulty. Contact the gas company.
Recirculation of combustion gasses.
Check the gas flue an the air supply.
Gas/air adjustment not correctly set.
setting, see gas/air adjustment.
Room thermostat / weather-dependent
adjustment not closed or faulty.
Replace the thermostat.
Replace the weather-dependant adjustment.
Check the wiring against the diagram.
Check the connector X4.
Replace the faulty manager.
Check connector X2.
Replace faulty pump.
Burner not firing on CH: sensor S1 or S2
faulty.
Replace sensor S1 or S2. See fault code.
See burner does not ignite.
9.2.5 The power is reduced
At high rpm the power has fallen by more
Check appliance and flue system
Clean the appliance and flue system.
9.2.6 CH does not reach temperature
Room thermostat setting incorrect.
etting and if necessary adjust.
Temperature is too low.
Increase the CH temperature.
See Operating CH . Check outside sensor for
short-circuiting. Rectify.
Pump not running correctly. Pump setting is
too low.
Increase pump setting, or replace the pump.
No circulation in the installation.
circulation: at least 2 or 3 radiators must be open.
The boiler power has not been correctly set
for the installation.
Adjust the power. See setting maximum CH power.
No heat transfer as a result of lime scale or
fouling in the heat exchanger.
De-scale or flush the heat exchanger on the CH side.
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