E19
Gledhill
Internal Self‑Test / Firmware Error
E19 displayed, unit fails self‑test at power‑up
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Corrupted firmware on PCB, Internal memory fault, Incorrect PCB version fitted, Severe electrical surge damage
How to Fix / Troubleshooting
Safety: Isolate power before handling the PCB.
Steps:
- Power cycle: Turn off power for at least 5 minutes, then restore. If E19 clears and does not return, monitor operation.
- Check PCB part number: Ensure the installed PCB matches the exact model and revision specified for your Gledhill water heater.
- Inspect for surge damage: Look for burn marks, cracked ICs, or other obvious damage. If present, the PCB must be replaced.
Remedy: In most cases, E19 requires replacement of the main control PCB. Firmware reprogramming is typically not field‑supported for domestic users.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Main Control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements