Applies to: BrewBlast™ 110CPH, BrewBlast™ 40PPH, BrewBlast™ 70CPH
This article covers all alarm conditions, indicator light states, and common troubleshooting scenarios for the BrewBlast™ product family. Where behavior differs between the 110CPH and the 40PPH/70CPH, each model is called out separately.
BlastOff™ Alarm — All Models
The BlastOff™ leak detection system is standard on all BrewBlast™ units. It monitors downstream gas lines from the generator to the kegs and shuts the unit down when it detects conditions consistent with a leak. Common causes include an improperly seated keg coupler, a failing fitting or gas line, or any connection that has developed a leak downstream of the generator.
Left unaddressed, downstream leaks are a safety hazard, accelerate compressor and media wear, and on CO₂-blended systems, will deplete CO₂ reserves rapidly.
⚠ WarningNever reset the BlastOff™ repeatedly without locating and repairing the cause. If the alarm activates daily, a real leak exists. Continued operation with an unresolved leak risks damage to the unit and is a potential safety hazard.
How the Alarm Presents
| Model | Alarm Indication |
|---|---|
| 110CPH | Red indicator light illuminates on the front control panel; generator shuts down. Also activates if the unit runs continuously for more than 9 hours without cycling to standby. |
| 40PPH / 70CPH | Audible buzzer activates; controller display shows "B.Off" in red; generator shuts down. |
BrewBlast™ 110CPH — BlastOff Response and Leak Check
- Turn the green toggle switch to the OFF position to silence the alarm indicator.
- Do not reset the unit yet. Inspect all downstream gas lines before resuming operation.
- Check each keg coupler — confirm it is fully seated and locked onto the keg. An improperly tapped keg is the most common BlastOff trigger.
- Trace all gas lines from the nitrogen outlet on the cabinet to the kegs. Listen at every fitting, valve, and connection for audible hissing.
- Apply soapy water or an approved leak detection solution using a spray bottle at all threaded and push-to-connect fittings along the external gas lines. Apply only to non-electrical components — never spray near the control panel, power connections, or any electrical components.
- If a leak is found, close the valve upstream of the leak, repair or replace the fitting or hose, and leak-check the repair before re-pressurizing.
- Once all leaks have been repaired, push the toggle switch back to the ON position to reset the BlastOff™ and resume operation.
- If no external leak is found and the alarm continues to activate, contact South-Tek Systems for further diagnosis.
ℹ NoteOn the 110CPH, the BlastOff™ will also activate if the unit runs continuously for more than 9 hours without reaching standby. This is not necessarily a leak — it may indicate that demand is exceeding the unit's capacity, or that a very slow leak is present. Check all connections and confirm the downstream system is not drawing more nitrogen than the generator can sustain.
BrewBlast™ 40PPH & 70CPH — BlastOff Response
- Turn off the power switch to silence the buzzer and acknowledge the alarm.
- Do not reset the unit yet. Perform a thorough leak check of all downstream gas lines before resuming operation. Follow the full isolation procedure in BrewBlast™ 40PPH & 70CPH – Checking for Leaks.
- Once the leak has been located and repaired, turn the power switch back on. The BlastOff™ resets automatically when the unit is power-cycled.
Filter Service Alarm — 110CPH Only
Does NOT apply to: BrewBlast™ 40PPH, BrewBlast™ 70CPH — those models use a filter replacement schedule log on the filter bracket rather than an electronic alarm.
The 110CPH monitors filter run hours and alerts when the filter change interval has been reached. Filters should be replaced annually or every 1,000 run hours, whichever comes first.
| Indicator State | Meaning |
|---|---|
| White light — illuminated continuously | Filter replacement interval reached (1,000 hours or 1 year) — replace filters before resetting |
To respond:
- Replace all filter elements using annual filter kit FRP-001. See BrewBlast™ 110CPH – Annual Filter Replacement for the full procedure.
- After replacing the filters, locate the black and silver Alarm Reset Button inside the cabinet (accessible by removing the front cover).
- Press and hold the Alarm Reset Button until the white "Alarm" indicator light flashes — this confirms the 1,000-hour run timer has been reset.
ℹ NoteThe filter alarm timer should be reset every time filters are replaced, whether or not the alarm has triggered. Resetting the timer without replacing the filters does not address the underlying maintenance need.
Compressor Service Alarm — 110CPH Only
Does NOT apply to: BrewBlast™ 40PPH, BrewBlast™ 70CPH
The 110CPH tracks compressor operating hours and alerts when the compressor is approaching the end of its service life. The integrated compressor has a typical lifespan of 8,000–12,000 run hours with regular maintenance.
| Indicator State | Meaning |
|---|---|
| White light — flashing | Compressor nearing end of service life — plan compressor replacement |
To respond:
- Contact South-Tek Systems to obtain a replacement compressor.
- Have a qualified technician perform the compressor replacement.
- After installing the new compressor, reset the alarm by pressing the Alarm Reset Button three times in quick succession. The flashing white light will extinguish to confirm the reset.
▲ AttentionDo not reset the compressor alarm without replacing the compressor. The flashing indicator means the compressor is operating near or past its rated service life. Continued operation risks compressor failure and unplanned downtime.
Power Troubleshooting — All Models
If the unit has no power, nitrogen production will stop and storage tank pressure will drop. The first sign is typically slow or absent flow at the taps.
| Check | Action |
|---|---|
| Power cord | Confirm the power cord is fully seated at the unit and plugged into the wall receptacle |
| Building circuit breaker or GFCI | Locate the breaker serving the unit's circuit and reset if tripped. If the breaker trips again immediately, the circuit may be overloaded — do not continue resetting; consult an electrician |
| 110CPH: 10A fuse | Check the unit's inline fuse. Replace with the correct rating only. A repeatedly blown fuse indicates an underlying electrical fault — contact South-Tek Systems |
| 40PPH / 70CPH: built-in 20A breaker | The unit has a built-in circuit breaker on the control panel. Reset if tripped. A repeatedly tripping breaker indicates an underlying fault — contact South-Tek Systems |
| 110CPH customer alarm — NC terminal | If the customer alarm is wired, the NC terminal will signal on power loss. Check the remote monitoring system for a power loss event to confirm the unit lost power rather than failed |
Pressure Troubleshooting — All Models
N₂ Storage Pressure Low
Normal N₂ storage pressure ranges are 60–90 PSIG (110CPH) and 60–85 PSIG (40PPH/70CPH). If the storage gauge reads low and the unit is running, check the following:
- Confirm the unit has power and the compressor is running.
- Check all downstream gas lines for leaks. A system that cannot build or hold pressure almost always has a leak somewhere in the run. See BrewBlast™ 40PPH & 70CPH – Checking for Leaks (40PPH/70CPH) or the BlastOff response procedure above (110CPH).
- Confirm that demand is not exceeding the unit's rated capacity. Running too many lines simultaneously off an undersized generator will prevent the storage tank from fully pressurizing.
CO₂ Pressure Issues — 40PPH & 70CPH with Blender Option
Does NOT apply to: BrewBlast™ 110CPH — no blender option available.
When the McDantim™ blender is installed, both N₂ and CO₂ must be present above 40 PSIG. The blender will shut down its output if either gas falls below this threshold.
| Check | Expected Value / Action |
|---|---|
| CO₂ regulator gauge | Should read 80–100 PSIG. If low, check whether the CO₂ storage cylinder needs replacement and whether the regulator needs adjustment. Recommended inlet pressure to the unit is 85 PSIG. |
| Blender output pressure | Mixed gas from the blender should be between 40–85 PSIG depending on inlet pressures. If output is low with both gases present, a regulator may be malfunctioning or need adjustment. |
| Primary regulator (at cabinet output) | Steps the blender output pressure down to the appropriate pressure for the keg lines. Adjust to suit the system's requirements. |
| Secondary regulators (at individual kegs) | Used to tune pressure per individual keg. Different coffees and beverages may require different pressures. If the generator is operating correctly but pour quality is off, contact a Draft Coffee System Technician to adjust secondary regulators. |
Alarm Quick-Reference
| Model | Indication | Alarm | Reset Method |
|---|---|---|---|
| 110CPH | Red light on | BlastOff™ — leak detected or 9-hr continuous run | Toggle switch off, then on |
| 110CPH | White light — continuous | Filter replacement due | Replace filters, then press and hold Alarm Reset Button until white light flashes |
| 110CPH | White light — flashing | Compressor service due | Replace compressor, then press Alarm Reset Button three times quickly |
| 40PPH / 70CPH | Buzzer + "B.Off" on display | BlastOff™ — leak detected | Power switch off, then on |
Related Articles
| Article | Applies To |
|---|---|
| BrewBlast™ 40PPH & 70CPH – Checking for Leaks | 40PPH, 70CPH |
| BrewBlast™ 110CPH – Installation & Initial Startup | 110CPH |
| BrewBlast™ 40PPH & 70CPH – Installation & Startup | 40PPH, 70CPH |
| BrewBlast™ 110CPH – Annual Filter Replacement | 110CPH |
| BrewBlast™ 40PPH & 70CPH – Annual Filter Replacement | 40PPH, 70CPH |
Contact South-Tek Systems
Phone: (910) 415-1880
Email / Ticket: support@southteksystems911.zendesk.com