Furnace 不工作

[billwanhua]

又送电试了一下，点火了，furnace 上面那部分温度很高，烫手，出风口都没什么风，是不是就是你说的这个原因？

这个依然可能是点火器的问题，烧得快断了，估计再过几次就完全不行了。

渥太华最便宜的地方就是这个店，但是不一定有现货

https://www.grainger.ca/en/product/HOT-SURFACE-IGNITOR%2CSILICON-CARBIDE/p/WWG4LWU9

如果是风扇坏了，不会点火，或者点火后快速自己切断了

 

[ccc]

https://bbs.comefromchina.com/threads/710502/

可能是鼓风机电动机过热，原因是电动机的那个启动电容（run capacitor)坏了，换个新电容试试吧。

 

[May11]

最新观察到的过程：点火启动，灯正常flash, 大概1分钟左右，火灭，flash code: limit switch open

 

[billwanhua]

最新观察到的过程：点火启动，灯正常flash, 大概1分钟左右，火灭，flash code: limited switch open

那可能是电路板坏了，送气的继电器没有打开？还是给室内主风机的继电器没有打开？
找技工上门吧

 

[ccc]

请人吧。

你在哪个区?

 

[春夏之交]

看看锅炉里面的保险丝。

Furnace 跟锅炉有关系吗？

 

[ccc]

Furnace 跟锅炉有关系吗？

取暖锅炉

另外那个是热水器

 

[billwanhua]

最新观察到的过程：点火启动，灯正常flash, 大概1分钟左右，火灭，flash code: limit switch open

If the air inside your furnace gets too hot, the limit switch trips to prevent overheating. If the furnace high limit switch trips due to overheating, there is likely an airflow issue that is preventing proper air movement through the system. Check your air filter, and replace it if dirty

Check your air filter, and replace it if dirty. A dirty filter is the most common cause of airflow issues.
Open all vents and registers throughout the home to ensure proper air movement through the system and ducts.

换过滤器

 

[May11]

If the air inside your furnace gets too hot, the limit switch trips to prevent overheating. If the furnace high limit switch trips due to overheating, there is likely an airflow issue that is preventing proper air movement through the system. Check your air filter, and replace it if dirty

Check your air filter, and replace it if dirty. A dirty filter is the most common cause of airflow issues.
Open all vents and registers throughout the home to ensure proper air movement through the system and ducts.

换过滤器

感觉停机的过程就是这样的，昨天晚上闻到烟味后立刻换了filter, 换下来的也不是很多灰尘。两年前做过duct cleaning

 

[billwanhua]

感觉停机的过程就是这样的，昨天晚上闻到烟味后立刻换了filter, 换下来的也不是很多灰尘。两年前做过duct cleaning

其他部分你修不了。

也有可能主风机启动电容坏了，风机不转造成的过热

A dirty blower motor can also cause overheating, which is one reason why the furnace high limit switch continues to trip repeatedly. Schedule a maintenance tune up to have the entire system and the blower motor thoroughly cleaned.

Defective Limit Switch
If the furnace high limit switch is tripping, it will wear out at some point. Eventually, it will trigger a lockout mode, and your gas furnace will be unable to operate until the switch is reset or replaced. Make sure you contact your technician to perform this repair task.

 

[May11]

其他部分你修不了。

也有可能主风机启动电容坏了，风机不转造成的过热

A dirty blower motor can also cause overheating, which is one reason why the furnace high limit switch continues to trip repeatedly. Schedule a maintenance tune up to have the entire system and the blower motor thoroughly cleaned.

Defective Limit Switch
If the furnace high limit switch is tripping, it will wear out at some point. Eventually, it will trigger a lockout mode, and your gas furnace will be unable to operate until the switch is reset or replaced. Make sure you contact your technician to perform this repair task.

烟味是不是就是村长最新提到的鼓风机电机过热所导致的？

 

[billwanhua]

其他部分你修不了。

也有可能主风机启动电容坏了，风机不转造成的过热

A dirty blower motor can also cause overheating, which is one reason why the furnace high limit switch continues to trip repeatedly. Schedule a maintenance tune up to have the entire system and the blower motor thoroughly cleaned.

Defective Limit Switch
If the furnace high limit switch is tripping, it will wear out at some point. Eventually, it will trigger a lockout mode, and your gas furnace will be unable to operate until the switch is reset or replaced. Make sure you contact your technician to perform this repair task.

你如果自己想修，可以干这个：
Here’s how to test the furnace limit switch and replace it if necessary.

1. Shut off the power and gas to your furnace.
2. Locate the limit switch and remove it from your furnace.
3. Place the multimeter probes on the switch terminals and check for continuity.
4. If there’s no continuity, replace the switch with a new model

 

[May11]

你如果自己想修，可以干这个：
Here’s how to test the furnace limit switch and replace it if necessary.

1. Shut off the power and gas to your furnace.
2. Locate the limit switch and remove it from your furnace.
3. Place the multimeter probes on the switch terminals and check for continuity.
4. If there’s no continuity, replace the switch with a new model

难度有点大LOL
闻到烟味后已经联系了technician, 没想到停机了。烟味很重。想着自查能有所发现，然后告诉他好带需要的parts过来。

 

[eclipse]

难度有点大LOL
闻到烟味后已经联系了technician, 没想到停机了。烟味很重。想着自查能有所发现，然后告诉他好带需要的parts过来。

让他赶紧来吧，晚点就买不到配件要等明天了，今晚太冷了。

 

[billwanhua]

Fan and Limit Controls - Grainger, Canada

Shop Grainger Canada for quality Fan and Limit Controls products. Grainger Canada has been Canada's premiere industrial supplier for over 125 years.

www.grainger.ca

这里有配件，不清楚是不是一个型号