CW3 / CW6 Diagnostic Guide - MagIQtouch Service Menu, Water Management, Pumps, Fans, Drain, Fault Codes, Commissioning

Applies to: Climate Wizard CW3 / CW6 (859741‑M Manual) using MagIQtouch Controls
Cross‑Reference: CW3 / CW6 Installation & Operation Manual (Page numbers included throughout)

Purpose of This Guide

This guide provides a consolidated diagnostic workflow for technicians using the MagIQtouch Service Menu to test, verify, and troubleshoot all major components of the CW3 / CW6 cooler.

Relevant source pages: pp. 22–24, 19–21, 24–27

Accessing the MagIQtouch Service Menu

1. On the MagIQtouch controller, open Settings → Service / Service Operating Screen (see below YouTube video)
2. The screen allows individual control of:
   • Fill solenoid
   • Stage 1 Pump (Direct/Right)
   • Stage 2 Pump (Indirect/Left)
   • Drain valve
   • Supply fan
   • Exhaust fan

Source: MAGIQTOUCH SERVICE MENU – p. 22

Click to view YouTube Video - Accessing Climate Wizard MagIQtouch Service Screen CW3 / CW6

Pre‑Diagnostic Checks

Before running Service Menu tests, verify the following:

Electrical

• Local isolator ON, controller powered
• Internal 10A anti‑surge fuse intact
  Ref: Electrical Requirements – pp. 16–18

Water Supply

• Static pressure 100–800 kPa
• Minimum flow 10 L/min, recommended 20 L/min
• Site‑installed filter ≥ 500 µm clean
• Isolation valve open
  Ref: Water Requirements – pp. 17–19

Cooler Level & Drain

• Cooler must be fully level to avoid poor fill/drain behaviour
• Drain line unrestricted and compliant with local plumbing rules
  Ref: Installation – Levelling – p. 12
  Ref: Drain Installation – p. 20

Weatherseal

• Weatherseal must open unobstructed through its full travel
  Ref: Weatherseal Operation – p. 13

Service Menu Component Tests

Each test below includes expected results and the corresponding PDF page reference.

Click to view YouTube Video - Accessing Climate Wizard MagIQtouch Service Screen CW3 / CW6

Fill Solenoid Test

Action: Set Fill Solenoid = ON
Expected:

• Water enters reservoir
• Water rises to LOW probe
• Conductivity reading becomes available (> 100 µS/cm normal)

Ref: Water Management System Checks – p. 22
Ref: Water Management System Behaviour – pp. 19–21

Stage 1 Pump (Direct / Right Pump)

Action: Set Stage 1 Pump = ON
Expected:

• Right pump starts
• Grey hose circuit wets the upper manifold connection on each core

Ref: Service Menu Pump Checks – p. 22
Ref: Pump Operating Cycles – p. 19

Stage 2 Pump (Indirect / Left Pump)

Action: Set Stage 2 Pump = ON
Expected:

• Left pump starts
• Blue hose circuit wets the lower manifold connection on each core

Ref: Service Menu Pump Checks – p. 22
Ref: Pump Operating Cycles – p. 19

Drain Valve Test

Action: Set Drain = OPEN
Expected:

• Drain valve opens
• Reservoir empties completely
• Fill solenoid remains closed while drain is open

Ref: Water Management System Checks – p. 22
Ref: Drain Valve Operation – p. 20

Supply Fan Test

Action: Turn Supply Fan = ON, ramp Speed 1 → 10
Expected:

• Smooth acceleration without abnormal sound
• No vibration or rattling at any speed

Ref: Fan Checks – p. 22

Exhaust Fan Test

Action: Turn Exhaust Fan = ON, ramp Speed 1 → 10
Expected:

• No abnormal noise or vibration
• Smooth speed control throughout range

Ref: Fan Checks – p. 22

Cooling Core Flush (Recommended During Commissioning)

Action: Enable Cooling Core Flush = 15 minutes from controller settings.

Expected:

• Fresh water flushes both core circuits
• No leaks internally
• Correct hose routing verified:
  • Blue → left pump → bottom manifold
  • Grey → right pump → top manifold

Ref: Cooling Core Flush – p. 22

Diagnostics

This section outlines the logical fault‑isolation path for each subsystem.

Fill / Level / Probe Issues

Symptoms

• No water entering tank
• Low or High probe not detecting water
• Conductivity not registering

Checks

1. Verify drain valve is closed during fill (p. 20)
2. Confirm water pressure & flow (pp. 17–18)
3. Inspect solenoid orientation & strainer (p. 19)
4. Clean/inspect 3‑pin probe (p. 19)
5. Ensure cooler is level (p. 12)

Related Fault Codes

• #2 – Low probe not reached (p. 24)
• #3 – High probe not reached (p. 24)
• #5 – High wet, Low dry (probe dirty) (p. 24)

Pump / Circulation Issues

Symptoms

• Pump runs but little/no flow to manifolds
• Cores not wetting evenly

Checks

1. Clean pump strainers (Maintenance Schedule – p. 27–30)
2. Confirm hose connections (blue bottom / grey top) (p. 22)
3. Inspect spreaders for blockage (pp. 27–30)
4. Check pump connectors on PCB (p. 18)

Drain / Overflow Issues

Symptoms

• Drain will not open
• Tank does not empty
• Excess water draining during operation

Checks

1. Command Drain OPEN; listen for motor (p. 22)
2. Check discharge hose for kinks/obstruction (p. 20)
3. Inspect valve seal and O‑ring (p. 20)

Related Fault Code

• #4 – Low probe still wet after drain (p. 24)

Fan / Motor Issues

Symptoms

• Noise or vibration at any speed
• Fan not ramping up
• Motor errors in LED diagnostics

Checks

1. Inspect for debris and loose mounts (p. 22)
2. Check weatherseal opens at start (p. 13)
3. Confirm motor power & comms wiring (p. 18)

Related Fault Codes

• #7 – Supply motor error (p. 24)
• #13 – Exhaust motor error (p. 24)

Salinity / Water Quality Issues

Symptoms

• Frequent salinity drains
• Chlorinator warnings
• Very low / very high conductivity

Checks

1. Review Water Manager mode (p. 23)
2. Check chlorinator cleanliness and circuit (p. 21)
3. Confirm water supply salinity within spec (p. 17)

Related LED/Chlorinator Codes

• Chlorinator degraded / end of life (p. 24–25)
• Conductivity LED behaviours (p. 25)

7. MagIQtouch Settings That Influence Diagnostics

8. Fault Code Summary (For Cross‑Reference)

PCB Tri‑Colour LED Faults

Full list: pp. 24–25

Common examples:

• #1 – Communication failure
• #2 – Low probe not reached
• #3 – High probe not reached
• #4 – Low probe not clearing during drain
• #7 – Supply motor error
• #10 – Chlorinator end of life / faults
• #13 – Exhaust motor error

9. Post‑Diagnostic Verification Checklist

After repairs or commissioning:

1. Run Fill → Pump 1 → Pump 2 → Drain sequence (all pass)
2. Conduct Cooling Core Flush (15 min)
3. Confirm correct hose mapping (blue bottom, grey top)
4. Run COOL mode at Speed 10 for ≥20 minutes; verify:
   • Leaving air cooler than ambient
   • No odour
   • No leaks
   • No overflow
5. Clear stored faults and verify none return
6. Document salinity and water pressure values

Ref: Customer Handover Checklist – p. 22–23

10. Safety & Compliance

• Electrical work must be carried out by a licensed electrician
• Drain must discharge legally; no discharge onto roof surface permitted
• Ensure safe roof access and sufficient working clearances

Ref: Installation & Safety Notes – pp. 2–13