Why is the radiator half hot and half not hot? How to fix the radiator if it is not hot?

Radiators are one of the essential heating items in every northern family, but many people will encounter the situation that the radiator is hot and cold at the same time when using it. So what is the reason why the radiator is half hot and half cold? How to fix the radiator if it is not hot? The following editor will explain them one by one, hoping to help you.

Why is half of the radiator hot and half not?

In this case, there is a problem with the circulation. If the first radiator is hot but the others are not, first check whether the main valve at the entrance is not open enough or the filter screen at the entrance is clogged. If there is no such problem, then flush all the pipes. If it still doesn't work, then check whether your neighbor has added a booster pump. If he has added a pump, the pressure of the main circuit will be higher than your pressure, which will inevitably cause poor circulation in your home and poor heating. You can only add a pump or ask him to remove the pump, there is no other way.

How to fix the radiator if it is not hot

1. Most radiators are connected in series. If none of them are hot, it means that the water inlet pipe is blocked by debris. Just contact the property management to clean it up.

2. If you start counting from the first one near the household, the first few groups are hot but the last few groups are not, then see if one of them is blocked. This situation is generally not the case, because the main pipes near the household have filters.

3. If half of it is hot and half is not, that means there is air. There is an exhaust hole on the top of the heater. Cover it with a rag with a screwdriver to prevent water from piercing your body. Let water slowly flow out. If all the screws are unscrewed and the water still does not drain, use a toothpick to clear the exhaust hole. Because water will be blocked by debris after long-term circulation, remember to cover it with a towel when clearing it to prevent getting wet.

How to clean the rust in the radiator

Cleaning the rust is a bit troublesome, so it is best to find a professional to handle it. If you insist on cleaning it yourself, first use a pipe wrench to remove the plug of the radiator, then use a gas key to disassemble the radiator and clean it piece by piece. Then restore it according to the steps when disassembling it.