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1. SERVICING INSTRUCTIONS
1.1 REPLACEMENT OF PARTS
1.2 TO GAIN GENERAL ACCESS
- Removing the front panel
- Removing the sealed chamber front cover
- Removing the side panels
1.3 A
CCESS TO THE COMBUSTION CHAMBER
- Removing the combustion cover
- Removing the burner and jets
- Removing the electrodes
- Removing the main heat exchanger
- Removing the air pressure switch
- Removing the fan
1.4 S
ERVICING AND
REMOVAL OF THE GAS VALVE
- Setting the gas pressures
- Removing the spark generator
- Removing the gas valve
1.5 A
CCESS TO THE WATER CIRCUIT
- Removing the pump pressure switch
- Removing the safety valve
- Removing the automatic air vent
- Removing the pump
- Removing the pressure gauge
- Removing the expansion vessel
- Removing the overheat thermostat
- Removing the frost thermostat
- Removing the regulation thermostat
1.6 A
CCESS TO THE CONTROL SYSTEM
- Checking the fuses
- Removing the P.C.B.s
2. FAULT FINDING
2.1 FAULT FINDING GUIDE (FLOW-CHARTS)
3. ELECTRICAL DIAGRAMS
4. SHORT SPARE PARTS LIST
TABLE OF CONTENTS
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