User Manual

23
Troubleshooting
The following table lists causes and corrective actions for possible problems with Self Cleaning hoods.
Review this list prior to consulting manufacturer.
Self Cleaning Hood Troubleshooting Chart
Problem
Potential Cause
Corrective Action
Plenum not being cleaned
No Water Pressure
Verify Hot Water Pressure >30 PSI
Open Manual Valve if closed
Clogged nozzles
Clean or replace nozzles
Timer Settings improperly set
Wash timer should be set for
approximately 3 minutes
No water pressure
Turn main building water valve on
Nozzle spray pattern incorrect
Nozzles must be pointed toward
back of plenum
No Surfactant
Add Surfactant
Leaking Manifold Pipes
Pipes not tight or sealed
Reseal and tighten pipes
Water Leaking from Vacuum
Breaker
Riser nozzle installed too high
Verify that vacuum breaker is
installed higher than all downstream
piping components
Add Surfactant Light On
Low Surfactant Level
Add Surfactant
Water leaks out of Filters
Filters have gaps between them
Add Filter Drip Blanks or reorient
filters
Water Overflows Grease
Trough
Clogged Drain
Clean Drain or grease trap
Wrong Filters Installed
Install Proper Filters per
Manufacturer
Water Pressure Too High
Water Pressure should be 50 PSI
max
Wash Timer Set Too Long
Reduce Wash Time
Nozzles are Loose
Tighten Nozzles
Filters are Clogged with Grease
Clean Filters