If your E+ unit is running at high speed but not producing heat, please switch off power to your E+ electric heater for five(5) seconds and then switch power back on. The unit should come back on heating mode. Please refer to the E+ electric unit heater installation manual (https://www.reznor.co.uk/wp-content/uploads/2024/08/Reznor-e-Installation-Manual-EN-2024-06-D301600-Iss-0-print-quality-1.pdf) for more information.
Why is my E+ unit running at high speed but not producing heat?
Information on Reznor's range of warm air heaters