Blocked Air Intake - A.O. Smith Cyclone XL 100 Series Service Handbook

3. BLOCKED AIR INTAKE

B
locked
0 days 0 hrs 0 mins ago
Error Code:
Restriction in air intake.
Check intake pipe and
termination for blockage.
Press the Advanced button for
CHECK/ REPAIR:
• Check pipe for restriction or excessive equivalent length.
• See Instruction Manual for pipe size, length and maximum number of elbows.
• Check actual pipe pressure with a manometer during blower operation.
THROTTLE ADJUSTMENT
UINDER BLUE COVER
GAS PRESSURE
TEST PORT
2" GAS INLET
Firere 10. Gas Control Valve Assembly
A I
ir ntake
A
7-1201
BACK ADVANCED
OFF-SET ADJUSTMENT
UNDER SCREW COVER
PORT #2: SUPPLY-GAS
PRESSURE TEST PORT
CAUSES:
• The Blocked Air Intake Switch has detected a possible
restriction in the air intake pipe.
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