Blocked Air Intake - State Water Heaters SUF 119300 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. See "Pressure Switch Tests" section
on Page 13 thru Page 15.
A I
ir ntake
A
7-1201
BACK ADVANCED
Servicing should only be performed by a Qualified Service Technician
CAUSES:
• The Blocked Air Intake Switch has detected a
possible restriction in the air intake pipe.
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