XSol Diagnostic System
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INSPECT FAN ASSEMBLY
Isolate Mains Power to appliance as per TOPs P4
Remove fan assembly from boiler
Observation:
Inspect fan impellor / venturi for contamination and blockages.
FAN CLEAN AND GOOD CONDITION
FAN CONTAMINATED / BLOCKAGES
After test don't forget
Isolate as per TOPs P4
and refit as necessary
Isolate as per TOPs P4
and refit as necessary