What causes Haas alarm 1001?

Mist collector motor has failed or tripped on thermal overload protection. Broken or loose wiring between the mist collector relay and MOCON input terminal. Faulty pressure switch or flow sensor that monitors mist collector operation. Mist collector filter is completely clogged causing insufficient airflow to trigger the sensor. Defective relay on MOCON board that controls or monitors the mist collector circuit.

How do I fix Haas alarm 1001?

1. Step 1: Verify the mist collector motor is running by visual and audible inspection, check for tripped breaker or thermal overload 2. Step 2: Access Diagnostics page and verify the mist collector input signal state changes when motor runs, note the specific input number 3. Step 3: Inspect and clean or replace the mist collector filter if clogged, verify airflow returns to normal levels 4. Step 4: Check wiring from mist collector pressure switch or relay to MOCON board terminals for continuity and proper seating 5. Step 5: Test the pressure switch or flow sensor with multimeter for proper operation and switching at correct airflow threshold 6. Step 6: If all external components test good, suspect MOCON board input circuit failure and contact Haas for board replacement or repair

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Haas Controller

System · Basic · 15-30 minutes

Alarm 1001

Haas Alarm 1001 - Mist Collector Error

HAAS Alarm 1001 fires when the NGC control cannot verify proper mist collector operation through the auxiliary I/O feedback loop. This typically occurs due to missing run-confirm signals, parameter mismatches in Settings 81-84, or physical faults in the mist collector unit itself.

HaasSystemBasic15-30 minutes

1001

Haas Alarm 1001 - Mist Collector Error

Mist Collector

Root Cause Summary

HAAS Alarm 1001 fires when the NGC control cannot verify proper mist collector operation through the auxiliary I/O feedback loop. This typically occurs due to missing run-confirm signals, parameter mismatches in Settings 81-84, or physical faults in the mist collector unit itself.

Safety

Mist may accumulate

Causes and Fixes

1
Check Mist Collector Power
Verify mist collector unit has proper 120V/240V power and main breaker is ON. Check for tripped breakers or blown fuses at the collector.
Lockout/tagout main power before checking electrical connections
2
Verify Feedback Wiring
Check the run-confirm feedback wire from mist collector to NGC I/O board. Typically connected to auxiliary input terminal, verify continuity and proper voltage levels.
Use multimeter to verify 24VDC signal present when collector is running
3
Test Collector Manual Operation
Manually start mist collector at the unit. If it runs but NGC still shows alarm, the feedback circuit is faulty. If it won't start manually, internal collector fault exists.

DIY Feasiblehigh confidence

Call a technician if:

·NGC I/O board replacement required
·Complex mist collector internal repairs needed
·Electrical panel modifications required

Prevention

Regular mist collector filter maintenance
Periodic inspection of control wiring
Keep electrical connections clean and tight
Monitor mist collector performance indicators

Common Mistakes

Forgetting to set Setting 81 to OFF when no mist collector installed
Not checking mist collector power before troubleshooting NGC control
Ignoring mist collector fault indicators
Testing I/O with collector still connected

Related Alarms

1002 1003 1010

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