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FAULT
THE BOILER DIRTIES QUITE EASILY
CAUSE:
Burner poorly adjusted
SOLUTION:
Check the burner adjustment (flue gas analysis)
Flue blocked
Clean the flue gas path and the flue
Burner air intake path dirty
Clean the burner air intake
THE BOILER DOES NOT REACH THE SET TEMPERATURE
CAUSE:
Boiler body dirty
SOLUTION:
Clean the flue gas path
Boiler/burner combination
Check the data and adjustments
Burner flow-rate insufficient
Check the burner adjustment
Control thermostat
Check correct operation
Check the set temperature
BOILER THERMAL SAFETY SHUTDOWN WITH INDICATOR LIGHT
ON THE CONTROL PANEL
CAUSE:
Control thermostat
SOLUTION:
Check correct operation
Check the set temperature
Check the wiring
Check the probe bulbs
No water
Check the circuit pressure
Air present
Check the vent valve
THE BOILER REACHES THE SET TEMPERATURE BUT THE CENTRAL HEATING SYSTEM IS COLD
CAUSE:
Air in the system
SOLUTION:
Vent the system
Pump fault
Reset the pump
Minimum thermostat (if featured)
Check the set temperature
ODOUR OF UNBURNED SUBSTANCES
CAUSE:
Flue gas leaking into the environment
SOLUTION:
Check and if necessary clean the boiler body
Check and if necessary clean the flue
Check the tightness of the boiler and the flue
FREQUENT ACTIVATION OF THE SAFETY VALVE
CAUSE:
System circuit pressure
SOLUTION:
Check the fill pressure
Check the system circuit
Check the calibration
Check the set temperature
System expansion vessel
Check
GB
Summary of Contents for PREXTHERM RSH 1100
Page 1: ...PREXTHERM RSH Caldaie ad Altissimo Rendimento Very high efficiency boilers...
Page 2: ......
Page 110: ...6 4 17 110 Fig 17 1 2 1 2 2...
Page 112: ...160 8 3 112 9 O C BAH E 9 1 9 2 300 9 3 9 4 19 1 2 3 4 5 6 9 5 1 30 2 3 9 6 9 7...
Page 113: ...113 RU...
Page 115: ...Fig 5 Fig 4...
Page 116: ...Fig 7 Fig 8 3 5D D Fig 6...
Page 117: ...Fig 9 1 2 3 4 5 6 7 Fig 10...
Page 118: ...Fig 12 L A Fig 11...
Page 120: ...Fig 15 C B A C Fig 16 5 4 3 2 1 14 13 12 6 7 8 1011 9 Fig 18...
Page 121: ...Fig 19...
Page 122: ...Fig 20 Fig 21...
Page 123: ......