有人用Lennox G71MPP的furnace吗？ - 未名空间MITBBS历史存档

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有人用Lennox G71MPP的furnace吗？

有人用Lennox G71MPP的furnace吗？# Living

l*12010-11-22 08:11

1 楼

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o*12010-11-22 08:11

2 楼

已经装了，但是一直有E312（空气流量不足）error code。昨天开始出E225，E291之类
，得关掉重启才能接着升温。

w*n2010-11-22 08:11

3 楼

"E312（空气流量不足）" my guess is there is not enough air for furnace
to burn, if the furnace is in attic or basement,
attic or basement may be too air-tight,
call contractor to check
the problem, it can be dangerous in my own opinion.
燃烧不充分会有一氧化碳

t*r2010-11-22 08:11

4 楼

does your furnace have air-intake pipe from outside? (Your high-efficiency
furnace should have two pipes: one is for vent; the other is for fresh air
intake. I guess that your contractor did cheap way, did not install intake
air pipe.

o*12010-11-22 08:11

5 楼

It's not in basement or attic but in the laundry room with water heater.
There are indeed two pipes, one exhaust and one intake. Someone from the
company came and diagnosed that my return air duct may not be big enough. I'
ll see how it goes after they widen it.
Thanks for all your inputs.

intake

【在 t*******r 的大作中提到】

: does your furnace have air-intake pipe from outside? (Your high-efficiency
: furnace should have two pipes: one is for vent; the other is for fresh air
: intake. I guess that your contractor did cheap way, did not install intake
: air pipe.

G*F2010-11-22 08:11

6 楼

我家这台G71MPP也出这个问题了。温度设在72，但是一过67就furnace停了。error
code 是E291。请问你是怎么解决的？谢谢。

r*x2010-11-22 08:11

7 楼

I don't have this particular model, and am not an expert in this area. I had
a similar problem and learned a few things. If you haven't tried this,
please start with the simplest thing: pull out your air filter and see if it
improves. If you are using some good filters, such as the pleated filter
from Costco, the chance is the filter is blocking air flow. You may want to
use a different type of filter.

【在 G*F 的大作中提到】

: 我家这台G71MPP也出这个问题了。温度设在72，但是一过67就furnace停了。error
: code 是E291。请问你是怎么解决的？谢谢。