Blower Prover Open - State Water Heaters 60120-100250 Service Handbook

3. BLOWER PROVER OPEN

Blower Prover Open
Fault occurred 2 mins ago
The blower prover switch remains
open after the blower has been
energized.
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CHANGE
CHECK/ REPAIR:
• The blower prover pressure switch will close its contacts on a pressure rise. See "Pressure Switch Tests"
section on Page 12 thru Page 15 under "Blower Operation Error" on Page 11.
16
BACK ADVANCED
Servicing should only be performed by a Qualified Service Technician
CAUSES:
• The control has detected an open Blower Prover
Pressure Switch during operation.
• Blower Prover Pressure Switch sensing tube
disconnected or kinked.
• Loose or open wiring connections to Blower
Prover Pressure Switch.
• Blower not running when expected.
• Blower Prover Pressure Switch not operating
(Replace Blower Prover Switch).