MagIQtouch – Builder Lock Activated (Controller Locked / Unable to Adjust Settings)
Overview
Builder Lock is a configurable access restriction within the MagIQtouch controller. It operates similarly to a password and must be intentionally set via the controller interface.
In most cases where Builder Lock is active and the code is unknown; this is typically due to:
- Unintentional user input (for example, navigating service menus and entering codes such as 7378), or
- External interruption (such as a power loss occurring while settings are being accessed)
This behaviour is consistent with normal system operation and is not indicative of a product fault.
Important
- Builder Lock is a unique user-set code
- There is no override or master reset code available
- If the code cannot be identified, access cannot be restored via the controller
Applies To
MagIQtouch controllers used with heating products only
- (e.g. ducted gas heaters using MagIQtouch)
Controller revisions:
- 44R0719 and earlier
Note:
Later revisions (44R0920 and above) include improvements that reduce the likelihood of unintended activation.
Common Trigger Scenarios
- Entering 7378 (service access code) and navigating beyond the intended menu
- Advancing through prompts without recognising the Builder Lock screen
- Multiple or repeated button presses
- Power interruption while accessing menus or settings
Symptoms
- Lock icon displayed on screen
- Settings cannot be changed
- Customer unsure how lock was activated
Recovery Procedure
1. Access Builder Lock Screen
- Navigate to:
- Settings → Heater → Builder Lock / Unlock

2. Enter Service Access
- Enter 7378
- Press CONT

3. Attempt Default Entry
- Leave code as:
000000 - Press CONT twice

4. Confirm Response
- Screen should display:
- “INCORRECT CODE”
- This confirms the controller is responding to input

5. Power Cycle Controller
- Isolate power to the wall control
- Restore power and allow system to reboot
6. If Still Locked
- Attempt access using any known or likely codes the customer may have entered (i.e. 737800, 007378)
7. Repeat if Required
- Reattempt steps if needed
- Button presses may not always register on first entry
If Lock Cannot Be Cleared
If the Builder Lock code cannot be identified or the above steps are unsuccessful:
- The system cannot be unlocked via software or service code
- The only available resolution is to:
→ Replace the ICS (Integrated Control System) (heater PCBA as it is locked)
Technician Notes
- Builder Lock is a deliberate function, not automatically applied by the system
- No factory override is available by design
- This applies only to heating systems using MagIQtouch
- Resolution depends on:
- Correct code entry, or
- ICS replacement where the code is unknown
Recommended Customer Guidance
- Do not enter service menus unless instructed
- Avoid entering codes unless their purpose is known
- Treat Builder Lock as a secure access feature
Builders Lock Field Issue MagIQtouch 44R0719 and earlier