| Problem | Cause | Solution |
| There is leak | Teflon joints are loose | Tighten joints |
| *Run leak check from Maintenance | Sample heating tube is broken | Replace sample heating tube |
| Inlet O-ring is broken or damaged | replace with new O-ring | |
| Flowcell has an internal leak |
Disassemble and re-assemble flowcell | |
| Sensitivity drop | Calibration is bad | Remake standard and calibrate |
| There is leak | Fix the leak (see above) | |
| Sample heating tube is faulty | Replace sample heating tube | |
| Wrong method selectedr | Change method | |
| Incomplete combustion of sample | Change method or reduce sample amount | |
| Affected by interference (halogens) | Reduce sample amount or use additive B and/or M | |
| Affected by residue on sample boat | Wash or replace sample boat | |
| Joints/cell are soileded | Wash or replace them | |
| Flow error | Air pump is faulty (2000 hrs lifetime) | Replace with new air pump |
| There is leak | Fix the leak (see above) | |
| Sample heating tube is plugged | Replace sample heating tube | |
| Activated carbon filter is plugged | Replace activated carbon pencil filter | |
| Flow sensor is broken | Replace with new flow sensor | |
| Plugged V1 valve (flow rate drops during atomize step) |
Replace V1 valve (no harm in trying to clean it first) | |
| Strange peak shape / no peak | Affected by interference | Change method or reduce sample amount or use additive |
| Maximum H3 temperature is low
(Thermocouple position is not good or SSR/switching power supply is broken) |
Adjust thermocouple position Replace SSR/switching power supply |
|
| H3
does not heat up (H3 coil or thermocouple is broken) |
Replace H3 heater coil or thermocouple | |
| Mercury collector tube is faulty | Replace mercury collector tube | |
| High blank | Sample heating tube is contaminated | Replace to new sample heating tube |
| Joints are contaminated | Replace or wash Joints and cell | |
| Boat handling poker is contaminated | Replace or wash boat handling poker | |
| Sample boat is contaminated | Replace or wash sample boat | |
| Humidifier bottle is contaminated | Replace or wash dehumidifier bottle | |
| Flowcell is contaminated | Replace or wash cell | |