The answer to 'dehumidifier not heating' is that a dehumidifier not heating is usually caused by a faulty heating element or a problem with the dehumidifier's thermostat. If the dehumidifier is not producing warm air as it should, it's likely that the heating component has failed or the thermostat is not functioning properly.
In some cases, the issue may be due to a problem with the fan or compressor. If the dehumidifier is running but not heating the air, it's a good idea to check these components as well. Troubleshooting a dehumidifier heating issue often involves testing the various electrical components to identify the root cause.