1. Power or plug problem: Sometimes, the electric mattress is not hot because the power plug is not plugged in properly or there is something wrong with the power supply. Check whether the plug is firmly inserted into the socket, or try to replace the socket to see if it can solve the problem.
2. Switch or temperature setting: Electric mattresses are usually equipped with switches and thermostats. Check that these settings are correct. Sometimes, the temperature of the electric mattress is set to the lowest, so people can't feel the heat. Try to adjust the temperature setting to see if there is any change.
3. The electric heating wire is broken or loose: the heat of the electric heating mattress is generated by the internal electric heating wire. If the heating wire is disconnected or loosened, the electric mattress will not be hot. This situation usually requires professional maintenance services, and you can contact the manufacturer or professional maintenance personnel for maintenance.
Generally speaking, if the electric mattress is not hot, don't panic at first, and check one by one according to the above steps. In most cases, the cause of the problem can be found and solved. If the mattress is really out of order, the best way is to contact a professional maintenance service organization for maintenance, instead of disassembling and repairing it at will, so as to avoid further damage or potential safety hazards.