---
title: Commercial Ongoing Maintenance
description: "### 1. Cartridge Exchange(s) **Frequency: Annually | Takes 15 Minutes** - Remove and replace Cartridge(s) - Record install date on Cartridge label - Replace included Air Check Valves (required for warranty) - Confirm Air Check Valve arrow points **toward** plumbing…"
url: "https://clearcomfort.com/support/commercial-ongoing-maintenance/"
updated: "2026-07-15"
category: "CCW300A, CCW300 & CCW500"
---

# Commercial Ongoing Maintenance

### 1. Cartridge Exchange(s)

**Frequency: Annually | Takes 15 Minutes**

- Remove and replace Cartridge(s)
- Record install date on Cartridge label
- Replace included Air Check Valves (required for warranty)
- Confirm Air Check Valve arrow points **toward** plumbing
- Use included packaging & label to return old Cartridge for recycling

### 2. Check Valves, Diffusers & Air Tubing

**Frequency: Monthly | Takes 5 Minutes**

- Inspect Diffusers *(rod or disc)* for fouling or backpressure
- Inspect Air Tubing and Fittings for:
  - Kinks, cracks or leaks
  - Air or water leaks
  - Secure connections
- Tighten or replace any worn or loose connections

***Note:*** *Surge pit installations require a check valve to prevent backflow into the AOP system.*

### 3. Air Flow Setting

**Frequency: Monthly | Takes 5 Minutes**

- Confirm Air Flow Meter is clean & unobstructed
- Verify LPM matches model specifications:
  - **CCW300A:** 12–14 LPM
  - **CCW300:** 23–28 LPM
  - **CCW500:** 40–55 LPM
- Adjust as needed to maintain proper gas-to-water ratio

### 4. LED Indicator Lights

**Frequency: Weekly | Takes 1 Minute**

- Confirm all LEDs illuminate during startup & operation

**CCW300A*, CCW300 & CCW500 Lights:**

- **Red LED:** System ON *(System Power Switch)*
- **Blue LED:** Cartridge(s) functioning *(Cartridge A LED and Cartridge B LED)*
  - ***Note:*** *CCW300A has one Blue LED light.*

![](https://clearcomfort.com/wp-content/uploads/2026/07/Diagram-Commercial-Status-and-Cartridge-Lights--1024x582.png)

### 5. Flow Switch Inspection

**Frequency: Quarterly | Takes 5 Minutes**

**(If Applicable) For Diffuser Rod Installation Kits:**

- Verify system activates & deactivates with pump
- Inspect paddle for free movement
- Check for debris or calcium buildup
- Replace switch if operation is inconsistent

### 6. Air Compressor Inspection

**Frequency: Quarterly | Takes 5 Minutes**

- Inspect & clean Air Compressor intake filter monthly or as needed
- Clean intake and exhaust grilles as needed; remove pleated filters (if present) to improve airflow
- Install service kit every 18 months
- Replace Compressor after three service kits (~4.5 years)
- Record service & replacement dates

### 7. Diffuser Maintenance

**Frequency: Annually | Takes 10 Minutes**

- Remove and inspect diffusers for fouling, scaling or buildup
- Clean with muriatic acid solution (if needed) or replace if airflow is restricted
- Confirm proper airflow & bubble distribution

### 8. Annual Maintenance Record

**Frequency: After Service | Takes 5 Minutes**

- Record dates and notes for all completed maintenance
- Maintain access to system manuals & service guides