Standard control panel display issues
Three failure modes — blank display, unresponsive buttons, error code — and how to triage each.
Display is blank
- Check power to the unit (breaker, isolation switch, controller power)
- The display may be in a low-power state. Press any button to wake it.
If the display stays blank with power confirmed, the controller may need replacement. Contact our team.
Buttons aren't responding
- Check whether the unit is in a locked or settings mode (the controller has a child lock feature; consult the manual for unlocking)
- Are any buttons physically stuck or damaged?
If the buttons remain unresponsive, contact our team for controller troubleshooting or replacement.
Display shows error code
- Consult your heater manual for the specific code meaning
- Common causes are temperature sensor issues, overheat shutdowns, or wiring connection problems
- If the manual doesn't help, contact our team with the code and the conditions under which it appears