- Blocked nozzles
- Entry side glass
temperature to low
- Excessive cooling
in one or more zones
- Too low minimum
fire pressure
- Insufficient Crossover setting
- Poor Air/Gas ratio setting
- Damaged side insulation due to glass leak
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- Clean Nozzles
- Refer to Working End
set-up
- Check/Adjust Zone set points
- Reset to correct pressure
- Adjust crossover setting
- Check/Adjust
Air/Gas Ratio
- Refer to BH-F
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