- Annual or Periodic Test Fail
- Fuel Out or Low Product alarm
- Overfill alarm
- High Water alarm
- Probe Out alarm
- Sudden Loss alarm
- Gross Line Fail alarm
- PLLD Shutdown alarm
- Fuel Alarm (sensor)
- High Liquid alarm
- Sensor Out alarm
- Tank monitor printer not printing
- Veeder-Root TLS-350 alarms
- Veeder-Root PLLD line leak alarms
- Red Jacket IQ control box: red light codes
- Red Jacket IQ2 alarms and warnings
- Alarm and error codes
Veeder-Root TLS-450PLUS and TLS4 alarms
What each alarm means, and what the store can do.
To silence it
- Touch the alarm bar at the top, then touch it again.
- No screen? Press the red ALARM RESET button on the front.
Not here? Send it with your request.
Tank alarms
| On the screen | What it means | What to do | Manual |
|---|---|---|---|
Annual Test Needed Alarm | A yearly 0.1 gph leak test of a tank or line didn’t run in time. | Schedule the leak test. | 577014-243, p. 2 |
Annual Test Needed Warning | A yearly 0.1 gph leak test of a tank or line didn’t run in time. | Schedule the leak test. | 577014-243, p. 2 |
Annual Leak Test Fail Alarm | The tank failed its yearly 0.1 gph leak test.More on this alarm | Rerun the test once. Fails again? Call a tech. | 577014-243, p. 2 |
Cold Temperature Warning | The tank probe is colder than -4°F. | Clears when the temperature is back in range. | 577014-243, p. 2 |
CSLD Rate Increase Warning | Too much liquid leaked into the tank during a test. | Call a tech. | 577014-243, p. 2 |
Delivery Needed Warning | Fuel dropped below the reorder level set in the monitor.More on this alarm | Call for a delivery. | 577014-243, p. 3 |
Density Offset Warning | The probe’s density reading is off. Its float may be dirty. | Call a tech. | 577014-243, p. 3 |
Density Warning | The fuel’s density is outside the tank’s set limits. | Call a tech. | 577014-243, p. 3 |
Fuel Quality Alarm | There may be water or separated fuel in the tank. | Call a tech. | 577014-243, p. 4 |
Gross Leak Test Fail Alarm | The tank failed a 3 gph leak test.More on this alarm | Rerun the test once. Fails again? Call a tech. | 577014-243, p. 4 |
HRM Reconciliation Alarm | Fuel sold and fuel measured don’t match over 24 hours. | Call a tech. | 577014-243, p. 4 |
High Product Alarm | The tank is fuller than the limit set in the monitor.More on this alarm | No more deliveries until fuel is sold. | 577014-243, p. 5 |
High Water Alarm | Water in the tank is over the alarm limit.More on this alarm | Have the water taken out. | 577014-243, p. 5 |
High Water Warning | Water in the tank is over the warning limit.More on this alarm | Have the water taken out. | 577014-243, p. 5 |
Invalid Fuel Level | Fuel is so low the probe can’t read it.More on this alarm | Call for a delivery. | 577014-243, p. 5 |
Leak Alarm | A tank leak test failed.More on this alarm | Rerun the test once. Fails again? Call a tech. | 577014-243, p. 5 |
Leak Test Active | A tank leak test is running. | Don’t sell from that tank until it clears. | 577014-243, p. 5 |
Low Product Alarm | Fuel is below the low limit set in the monitor.More on this alarm | Call for a delivery. | 577014-243, p. 6 |
Low Temperature Alarm | The tank probe is colder than -4°F. | Clears when the temperature is back in range. | 577014-243, p. 6 |
Maximum Product Alarm | The tank is over its maximum level.More on this alarm | Stop the delivery. No more until fuel is sold. | 577014-243, p. 6 |
Missing Delivery Ticket Warning | A delivery’s ticket wasn’t entered at the monitor. | Enter the delivery ticket. | 577014-243, p. 7 |
No CSLD Idle Time Warning | Not enough idle time in 24 hours to run the leak test. | Stop selling from that tank until the test ends. | 577014-243, p. 7 |
Overfill Alarm | Fuel is over the fill limit. The tank may overflow.More on this alarm | Stop the delivery. Check for spills. | 577014-243, p. 7 |
Periodic Test Needed Alarm | A 0.2 gph leak test of a tank or line didn’t run in time. | Schedule the leak test. | 577014-243, p. 7 |
Periodic Test Needed Warning | A 0.2 gph leak test of a tank or line didn’t run in time. | Schedule the leak test. | 577014-243, p. 7 |
Periodic Leak Test Fail Alarm | The tank failed a 0.2 gph leak test.More on this alarm | Can stop salesRerun the test once. Fails again? Call a tech. | 577014-243, p. 7 |
Probe Out | The tank’s probe or its wiring has failed.More on this alarm | Call a tech. | 577014-243, p. 7 |
Siphon Break Active Warning | A siphon break valve closed the manifold for a tank test. | Nothing. It clears by itself. | 577014-243, p. 9 |
Sudden Loss Alarm | The fuel level dropped while no fuel was being sold.More on this alarm | Check for a big leak. Call a tech. | 577014-243, p. 9 |
Line leak alarms
| On the screen | What it means | What to do | Manual |
|---|---|---|---|
Annual Line Test Fail Alarm | A line failed its yearly 0.1 gph leak test.More on this alarm | Can stop salesCall a tech. | 577014-243, p. 2 |
Continuous Handle On Alarm | A pump handle signal has been on for hours. | Call a tech. | 577014-243, p. 2 |
Fuel Out Alarm | Fuel is below 10 inches. The pump can’t run.More on this alarm | Stops salesCall for a delivery. | 577014-243, p. 3 |
Gross Test Fail Alarm | A line failed its 3 gph leak test.More on this alarm | Can stop salesCall a tech. | 577014-243, p. 4 |
Line Equipment Alarm | The line’s pressure-measuring equipment has a fault. | Call a tech. | 577014-243, p. 5 |
Line Out | A pump or device fault keeps this line from working. | Stops salesCall a tech. | 577014-243, p. 5 |
Low Pressure Alarm | Line pressure dropped during a sale. | Can stop salesThe next sale restarts the pump. | 577014-243, p. 6 |
No Backfill Protect | A probe is out, so a tank on this line could overfill unseen. | Call a tech. | 577014-243, p. 7 |
Periodic Test Fail Alarm | A line failed its 0.2 gph leak test.More on this alarm | Can stop salesCall a tech. | 577014-243, p. 7 |
Sensor Open Alarm | The line’s pressure sensor reads below -8 psi. | Can stop salesCall a tech. | 577014-243, p. 8 |
Shutdown | The monitor shut this line after a failed test or an alarm.More on this alarm | Stops salesCall a tech. | 577014-243, p. 9 |
Sump, pan and tank wall sensors
| On the screen | What it means | What to do | Manual |
|---|---|---|---|
Fuel Alarm | A sensor found fuel where it watches: a sump, pan or tank wall.More on this alarm | Call a tech. | 577014-243, p. 3 |
High Liquid Alarmsump or pan sensor | Liquid is 8 in. deep in a dispenser pan or 10 in. in a sump.More on this alarm | Follow your store’s alarm steps now. | 577014-243, p. 4 |
High Liquid Alarmbrine sensor in a tank wall | The brine level in the tank wall is rising. Liquid may be getting in. | Call a tech. | 577014-243, p. 4 |
High Liquid Alarm3-wire sensor | The sensor found a high liquid level. | Call a tech. | 577014-243, p. 4 |
Liquid Warning | Liquid is 1 in. deep in a dispenser pan or sump.More on this alarm | Follow your store’s alarm steps now. | 577014-243, p. 5 |
Low Liquid Alarm | The brine level in the tank wall dropped. A wall may have a hole. | Call a tech. | 577014-243, p. 5 |
Mag Sensor Communication Alarm | A Mag sensor or its wiring has failed. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Fault Alarm | A Mag sensor reading went past its set limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Fuel Alarm | A Mag sensor found fuel past its alarm limit.More on this alarm | Call a tech. | 577014-243, p. 6 |
Mag Sensor Fuel Warning | A Mag sensor found fuel past its warning limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor High Liquid Alarm | A Mag sensor found liquid past its alarm limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor High Liquid Warning | A Mag sensor found liquid past its warning limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Install Alarm | A Mag sensor isn’t sitting in the right position. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Low Liquid Alarm | A Mag sensor’s liquid level fell past its alarm limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Low Liquid Warning | A Mag sensor’s liquid level fell past its warning limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Temperature Warning | It’s too hot or too cold for the sensor (-40 to 122°F). | Clears when the temperature is back in range. | 577014-243, p. 6 |
Mag Sensor Water Alarm | A Mag sensor found water past its alarm limit. | Call a tech. | 577014-243, p. 6 |
Mag Sensor Water Warning | A Mag sensor found water past its warning limit. | Call a tech. | 577014-243, p. 6 |
Sensor Out Alarm | A sensor is unplugged, faulty or set up wrong.More on this alarm | Call a tech. | 577014-243, p. 8 |
Short Alarm | A sensor or its wiring has shorted. | Call a tech. | 577014-243, p. 9 |
Water Out Alarm | Groundwater fell below the sensor, so it can’t do its job. | Call a tech. | 577014-243, p. 9 |
Submersible pump
| On the screen | What it means | What to do | Manual |
|---|---|---|---|
Capacitor Failing | The pump controller reports a failing capacitor. | Call a tech. | 577014-243, p. 2 |
Comm Error Fault | Repeated errors talking to a pump controller. | Call a tech. | 577014-243, p. 2 |
Comm Out Alarm | A pump controller stopped answering the monitor. | Call a tech. | 577014-243, p. 2 |
Dry Run | The pump ran dry while the fuel was low.More on this alarm | Get a delivery. It restarts by itself. | 577014-243, p. 3 |
Extended Run | The pump has run longer than its set limit. | Call a tech. | 577014-243, p. 3 |
High Temperature | The pump controller is too hot. | Call a tech. | 577014-243, p. 4 |
L2 Open | The pump controller lost one of its power lines. | Call a tech. | 577014-243, p. 5 |
Load Unbalanced | The motor draws uneven current on its power lines. | Call a tech. | 577014-243, p. 5 |
Locked Rotor | The pump motor is jammed. | Call a tech. | 577014-243, p. 5 |
Open Circuit | The pump motor’s circuit is broken. | Call a tech. | 577014-243, p. 7 |
Overload | The motor may be jammed. Franklin controllers call it this. | Call a tech. | 577014-243, p. 7 |
Over Speed | The pump is running faster than it should. | Call a tech. | 577014-243, p. 7 |
Over Voltage | The power to the pump is too high. | Call a tech. | 577014-243, p. 7 |
Pc Address 0 Found | A pump controller is set to an invalid address. | Call a tech. | 577014-243, p. 7 |
Probe Out/Line Out | A tank probe failed, so the monitor shut the line.More on this alarm | Stops salesCall a tech. | 577014-243, p. 8 |
Pump Controller Comm Out Alarm | A pump controller keeps timing out. | Call a tech. | 577014-243, p. 8 |
Pump Disabled | An automatic event turned this pump off. | Stops salesNothing. It clears by itself. | 577014-243, p. 8 |
Pump Inlet Blocked | The pump is drawing too little power, but the tank isn’t low. | Call a tech. | 577014-243, p. 8 |
Pump Out Alarm | A device fault stopped this pump. | Stops salesCall a tech. | 577014-243, p. 8 |
Relay Fault | The pump controller’s relay has failed. | Call a tech. | 577014-243, p. 8 |
Short Circuit | The pump’s wiring has a short. | Call a tech. | 577014-243, p. 9 |
Uncalibrated | The pump controller was never calibrated. | Call a tech. | 577014-243, p. 9 |
Underload | The pump is drawing too little power. | Call a tech. | 577014-243, p. 9 |
Under Voltage | The power to the pump is too low. | Call a tech. | 577014-243, p. 9 |
Unknown Fault | The pump controller sent a fault the monitor doesn’t know. | Call a tech. | 577014-243, p. 9 |
Voltage Unbalanced | The pump’s power lines are uneven. | Call a tech. | 577014-243, p. 9 |
Tank monitor, printer and inputs
| On the screen | What it means | What to do | Manual |
|---|---|---|---|
Autodial Failed Alarm | The monitor couldn’t reach a remote receiver. | Call a tech. | 577014-243, p. 2 |
Communications Alarm | A device stopped talking to the tank monitor. | Call a tech. | 577014-243, p. 2 |
Email Failed Alarm | The monitor couldn’t send an alarm email. | Call a tech. | 577014-243, p. 3 |
Freeze Warning | Recirculation didn’t start: a pump or line is turned off. | Call a tech. | 577014-243, p. 3 |
Generator Off | The backup generator shut off. Leak tests started again. | Nothing. It clears by itself. | 577014-243, p. 4 |
Generator On | The backup generator came on. Leak tests paused. | Nothing. It clears by itself. | 577014-243, p. 4 |
High Temp Recirc Warning | A recirculated line is warmer than its set limit. | Clears when the temperature is back in range. | 577014-243, p. 4 |
iButton Fault Alarm | The monitor’s iButton key is damaged. Most screens lock in 10 days. | Call a tech. | 577014-243, p. 5 |
iButton Fault Warning | The monitor’s iButton key is damaged. | Call a tech. | 577014-243, p. 5 |
Input Alarm | A device wired to the monitor changed state. | Check the device wired to this input. | 577014-243, p. 5 |
Low Temp Recirc Warning | A recirculated line is colder than its set limit. | Clears when the temperature is back in range. | 577014-243, p. 6 |
No Dial Tone Alarm | The monitor’s phone line has no dial tone. | Call a tech. | 577014-243, p. 7 |
Printer Out Of Paper | The printer is out of paper.More on this alarm | Put in a new paper roll. | 577014-243, p. 7 |
Printer Error | The printer’s roller release is open.More on this alarm | Push the printer’s release lever up. | 577014-243, p. 7 |
Recirculation Fault Alarm | Recirculation stopped: a pump or line is turned off. | Call a tech. | 577014-243, p. 8 |
Setup Data Warning | A device’s setup in the monitor is wrong or missing. | Call a tech. | 577014-243, p. 8 |
Temp Control High Temp Warning | A temperature-controlled spot is too warm. | Clears when the temperature is back in range. | 577014-243, p. 9 |
Temp Control Low Temp Warning | A temperature-controlled spot is too cold. | Clears when the temperature is back in range. | 577014-243, p. 9 |
Good to know
- An alarm stays on the list until its cause is fixed.
- Which alarms you see depends on what’s installed.
- Vapor monitoring alarms aren’t listed here.
Need a tech?
One request. Up to 4 licensed techs call.
Request a techRelated
Sources: Veeder-Root 577014-243, Rev C (2026).
Rows checked against the manual October 18, 2026.
We’re not affiliated with any equipment maker.