What should I do if the floor heating water inlet pipe is not hot? ——Comprehensive analysis and solutions
With the arrival of winter, floor heating has become the main way of heating many homes. However, many users have recently reported that the water inlet pipe of floor heating is not hot, which has greatly reduced the heating effect. This article will combine the hot topics and hot content on the Internet in the past 10 days to provide you with a detailed analysis of the reasons and solutions for why the floor heating water inlet pipe is not hot.
1. Common reasons why the floor heating water inlet pipe is not hot
According to user feedback from the entire network and professional maintenance data, the main reasons why the floor heating water inlet pipe is not hot are as follows:
| Reason | Proportion | Typical performance |
|---|---|---|
| clogged pipes | 35% | The inlet pipe is cold and the return pipe is lukewarm. |
| Insufficient water pressure | 25% | System pressure is lower than 1.5bar |
| The air is not exhausted | 20% | There is the sound of water flowing in the pipe, but the area is not hot. |
| Water distributor failure | 12% | Part of the circuit is not hot and the valve cannot be adjusted |
| Heat source problem | 8% | Boiler or heat pump is not working properly |
2. Step-by-step guide to solutions
In response to the above problems, we have compiled the following solutions:
1. Check and clean pipes
If you suspect that the pipe is clogged, you can contact a professional to use a floor heating cleaning machine to flush it. The recommended cleaning frequency is once every 2-3 years.
2. Adjust system water pressure
Normal water pressure should be maintained between 1.5-2.0bar. When the pressure is insufficient, pressurize it through the water replenishment valve (pay attention to the pressure gauge).
| Pressure value | Status | Processing method |
|---|---|---|
| <1.0bar | Seriously inadequate | Immediately replenish water to 1.5bar |
| 1.0-1.5bar | On the low side | It is recommended to add to 1.8bar |
| >2.5bar | too high | Relieve pressure through drain valve |
3. Exhaust operation steps
① Close all circuit valves
② Open the exhaust valve and water inlet valve
③ Exhaust each circuit one by one until the water flow is stable
④ Finally open the return valve to exhaust air
4. Water distributor maintenance
Check whether the valves in each circuit are opening and closing normally, and replace damaged solenoid valves or manual valves if necessary.
3. Q&A on recent high-frequency user issues
| question | solution |
|---|---|
| Newly installed floor heating is not hot when used for the first time | It needs to be exhausted several times, and the system will return to normal after 2-3 days of circulation. |
| It’s hot upstairs and downstairs, but it’s not hot at home. | Prioritize checking whether the entry filter is clogged |
| Hot during the day but not hot at night | It may be that the heat source power is insufficient or the water temperature is set too low at night |
4. Preventive maintenance suggestions
1. Do system inspection before heating every year
2. Install a water filter and replace it regularly
3. Keep the boiler outlet water temperature between 45-55℃
4. Keep the system full of water during non-heating seasons for maintenance
5. Professional service data reference
| Services | average market price | Recommendation cycle |
|---|---|---|
| Floor heating cleaning | 300-500 yuan/set | 2-3 years |
| Water distributor replacement | 800-1500 yuan | 8-10 years |
| Pipeline pressure detection | 100-200 yuan | every year |
Through the above systematic analysis and solutions, I believe that we can effectively solve the problem of your floor heating water inlet pipe not being hot. If the problem persists, it is recommended to contact professional floor heating maintenance personnel for inspection and repair in time.
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