Applicable Systems
Cleaver-Brooks Hawk 6000 Controller
Symptoms
The boiler reports a high exhaust temperature. The stack or flue gas temperature exceeds the normal range.
Possible Causes
- Boiler tube scaling or fouling
- Excess combustion air
- Burner combustion efficiency degraded
Troubleshooting Steps
- Step 1: Check the exhaust temperature
Temperature is within the normal range - Step 2: Inspect boiler tubes for scaling
Tubes are clean - Step 3: Verify the combustion air setting
Air is optimized for combustion
How to Reset
To reset: Resolve the high exhaust temperature, then clear the alarm.
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Source: Cleaver-Brooks Boiler Manual, Cleaver-Brooks Inc.
Category: Boiler
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