Riello 20165080, Инструкция по установке, эксплуатации и обслуживанию

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SHUTDOWN
5.6 Troubleshooting
PROBLEM CAUSE TROUBLESHOOTING TROUBLESHOOTING
The boiler does not reach its set tempera-
ture.
Heat exchanger dirty. − Clean the flue gas pipes.
Heat exchanger and burner mismatched. − Check specifications and settings.
Insufficient burner gas flow. − Check and adjust the burner.
Control thermostat problem.
− Check the functioning of the aquastat.
− Check the temperature setting.
The boiler keeps shutting down, and the
control panel warning light comes on.
Control thermostat problem.
− Check the functioning of the aquastat.
− Check the temperature setting.
− Check the electrical wiring.
− Check the sensor bulbs.
No water supply. − Check the circuit pressure.
Air in the circuit. − Check the vent valve.
The boiler has reached the set tempera-
ture but the radiators are still cold.
Air in the circuit. − Bleed the circuit.
Pump malfunctioning. − Check/release the pump.
Problem with minimum temperature
aquastat (if present).
− Check the temperature setting.
There is a smell of exhaust fumes. Fumes are escaping into the air.
− Check that the boiler body is clean.
− Check that the flue pipes are clean.
− Check that the boiler, flue pipes and flue
gas exhaust stack are all properly sealed.
The safety valve keeps opening.
Excessive pressure in the circuit.
− Check the circuit pressure.
− Check the functioning of the pressure
reducer.
− Check the settings of the pressure reduc-
er.
Problem with heating system expansion
vessel.
− Check the efficiency of the expansion
vessel.
There are traces of condensate on the rear
head.
Flue gas box seals.
− Check the seals between the rear head
and the flue gas box.