Heater controller making it cold in here?

Posted by Steve on December 30, 2008, 12:08 pm

> > -----
> > I have a gas furnace, comfortmaker RPJ2 and suspect that it needs a
> > new controller general 90 50A50-110 replacement number is 50A55-843
> > symptom:
> > The igniter works and burns bright, but intermittently the burners
> > will not ignite and the the blower will just keep blowing as the house
> > gets colder.
> > Recycling the power to the unit seems to fix this for a while.
> > Is there a good test I should do?

> Lets keep this real simple.... How do you know its the board??

----------
Sorry I haven't gotten back to all the responses yet.
The heat has been working It seems to have only flaked out for a few
times there.
So I suspect that it will be OK until it gets really cold. :)
I don't really know that it is the board,

Since the ignitor works (at least visually), and the fan works, and I
have checked all the connections, it seems to only leave 2
likelyhoods, the gas valve and the controller. (Let me know if you
suspect any others that fit the symptoms).
From previous posts, it seems to be more likely the controller.

I don't have an inline amp meter to "amp test" the ignitor, but I
replaced it 2 years ago and it sure is bright, I don't see how that
could not ignite gas if it was present.

I suppose I will have to wait for the problem to reoccure to test it
again, so let me know if there are any tests I can prepare myself
for.

Also if there is a 75% chance that it is the controller I would be
willing to accept that risk and just order it, (because that will take
days and I would rather do it now than when the problem crops up
again).

Thanks,
Crzzy1

--------

So in other words, your just guessing and have absolutely no clue as to what
the actual problem is. I can't see it or test it over the internet. Your
best bet is to call a *competent* tech to correctly diagnose and repair the
furnace. The cost of the tech will probably be less that what your going to
spend on a board that may or may not be what the problem actually is.

Posted by KJPRO on December 30, 2008, 11:58 pm

>> > -----
>> > I have a gas furnace, comfortmaker RPJ2 and suspect that it needs a
>> > new controller general 90 50A50-110 replacement number is 50A55-843
>> > symptom:
>> > The igniter works and burns bright, but intermittently the burners
>> > will not ignite and the the blower will just keep blowing as the house
>> > gets colder.
>> > Recycling the power to the unit seems to fix this for a while.
>> > Is there a good test I should do?

>> Lets keep this real simple.... How do you know its the board??

> ----------
> Sorry I haven't gotten back to all the responses yet.
> The heat has been working It seems to have only flaked out for a few
> times there.
> So I suspect that it will be OK until it gets really cold. :)
> I don't really know that it is the board,
> Since the ignitor works (at least visually), and the fan works, and I
> have checked all the connections, it seems to only leave 2
> likelyhoods, the gas valve and the controller. (Let me know if you
> suspect any others that fit the symptoms).
> From previous posts, it seems to be more likely the controller.
> I don't have an inline amp meter to "amp test" the ignitor, but I
> replaced it 2 years ago and it sure is bright, I don't see how that
> could not ignite gas if it was present.
> I suppose I will have to wait for the problem to reoccure to test it
> again, so let me know if there are any tests I can prepare myself
> for.
> Also if there is a 75% chance that it is the controller I would be
> willing to accept that risk and just order it, (because that will take
> days and I would rather do it now than when the problem crops up
> again).
> Thanks,
> Crzzy1
> --------
> So in other words, your just guessing and have absolutely no clue as to
> what the actual problem is. I can't see it or test it over the internet.
> Your best bet is to call a *competent* tech to correctly diagnose and
> repair the furnace. The cost of the tech will probably be less that what
> your going to spend on a board that may or may not be what the problem
> actually is.

But W/R's boards are cheap... lol

Posted by KJPRO on December 30, 2008, 11:57 pm

> Lets keep this real simple.... How do you know its the board??

----------
Sorry I haven't gotten back to all the responses yet.
The heat has been working It seems to have only flaked out for a few
times there.
So I suspect that it will be OK until it gets really cold. :)
I don't really know that it is the board,

Since the ignitor works (at least visually), and the fan works, and I
have checked all the connections, it seems to only leave 2
likelyhoods, the gas valve and the controller. (Let me know if you
suspect any others that fit the symptoms).
From previous posts, it seems to be more likely the controller.

I don't have an inline amp meter to "amp test" the ignitor, but I
replaced it 2 years ago and it sure is bright, I don't see how that
could not ignite gas if it was present.

I suppose I will have to wait for the problem to reoccure to test it
again, so let me know if there are any tests I can prepare myself
for.

Also if there is a 75% chance that it is the controller I would be
willing to accept that risk and just order it, (because that will take
days and I would rather do it now than when the problem crops up
again).

Thanks,
Crzzy1

--------

====================

No amp meter...
Then you lack the *other* test equipment to properly diagnose your
equipment.
No problem, that's why there are HVAC companies in your area. They're
trained to test and locate problems with heating and cooling equipment. Then
after you approve the repair, they repair your equipment so you have a
comfortable home to live in... simple as that.

If you want to purchase parts... no problem, how many of each component
would you like?
Might as well change everything and have a spare for the next time. I'm sure
this is cheaper.... lol

Posted by on December 31, 2008, 12:36 pm

> > > -----
> > > I have a gas furnace, comfortmaker RPJ2 and suspect that it needs a
> > > new controller general 90 50A50-110 replacement number is 50A55-843
> > > symptom:
> > > The igniter works and burns bright, but intermittently the burners
> > > will not ignite and the the blower will just keep blowing as the hous=

> > > gets colder.
> > > Recycling the power to the unit seems to fix this for a while.
> > > Is there a good test I should do?

> > Lets keep this real simple.... How do you know its the board??

> ----------
> Sorry I haven't gotten back to all the responses yet.
> The heat has been working It seems to have only flaked out for a few
> times there.
> So I suspect that it will be OK until it gets really cold. =A0 :)
> I don't really know that it is the board,
> Since the ignitor works (at least visually), and the fan works, and I
> have checked all the connections, it seems to only leave 2
> likelyhoods, the gas valve and the controller. (Let me know if you
> suspect any others that fit the symptoms).
> From previous posts, it seems to be more likely the controller.
> I don't have an inline amp meter to "amp test" the ignitor, but I
> replaced it 2 years ago and it sure is bright, I don't see how that
> could not ignite gas if it was present.
> I suppose I will have to wait for the problem to reoccure to test it
> again, so let me know if there are any tests I can prepare myself
> for.
> Also if there is a 75% chance that it is the controller I would be
> willing to accept that risk and just order it, (because that will take
> days and I would rather do it now than when the problem crops up
> again).
> Thanks,Crzzy1
> --------
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> No amp meter...
> Then you lack the *other* test equipment to properly diagnose your
> equipment.
> No problem, that's why there are HVAC companies in your area. They're
> trained to test and locate problems with heating and cooling equipment. T=

hen

> after you approve the repair, they repair your equipment so you have a
> comfortable home to live in... simple as that.
> If you want to purchase parts... no problem, how many of each component
> would you like?
> Might as well change everything and have a spare for the next time. I'm s=

ure

> this is cheaper.... lol

haha...
I kind of knew this would be the reply.
Replacing several parts is still cheaper than calling a tech. $200 vs
$700

I suspect that given the symptoms, there are a few good educated
guesses out there. and a couple of quick tests.

Because I am lacking one tool doesn't mean I don't have every other
tool to do the job. (I was a mechanic for a long time).
I won't tell a person he can't replace a muffler because he doesn't
possess an acetylene torch, Nor will I say he lacks the skill
necessary.
If I caved every time someone said to call a pro, I would have never
learned to install water heaters, or fix plumbing/drywall or repair
cars for that matter.

Thanks,
crzzy1

Posted by Steve on December 31, 2008, 4:03 pm

> > > -----
> > > I have a gas furnace, comfortmaker RPJ2 and suspect that it needs a
> > > new controller general 90 50A50-110 replacement number is 50A55-843
> > > symptom:
> > > The igniter works and burns bright, but intermittently the burners
> > > will not ignite and the the blower will just keep blowing as the house
> > > gets colder.
> > > Recycling the power to the unit seems to fix this for a while.
> > > Is there a good test I should do?

> > Lets keep this real simple.... How do you know its the board??

> ----------
> Sorry I haven't gotten back to all the responses yet.
> The heat has been working It seems to have only flaked out for a few
> times there.
> So I suspect that it will be OK until it gets really cold. :)
> I don't really know that it is the board,
> Since the ignitor works (at least visually), and the fan works, and I
> have checked all the connections, it seems to only leave 2
> likelyhoods, the gas valve and the controller. (Let me know if you
> suspect any others that fit the symptoms).
> From previous posts, it seems to be more likely the controller.
> I don't have an inline amp meter to "amp test" the ignitor, but I
> replaced it 2 years ago and it sure is bright, I don't see how that
> could not ignite gas if it was present.
> I suppose I will have to wait for the problem to reoccure to test it
> again, so let me know if there are any tests I can prepare myself
> for.
> Also if there is a 75% chance that it is the controller I would be
> willing to accept that risk and just order it, (because that will take
> days and I would rather do it now than when the problem crops up
> again).
> Thanks,Crzzy1
> --------
> ====================
> No amp meter...
> Then you lack the *other* test equipment to properly diagnose your
> equipment.
> No problem, that's why there are HVAC companies in your area. They're
> trained to test and locate problems with heating and cooling equipment.
> Then
> after you approve the repair, they repair your equipment so you have a
> comfortable home to live in... simple as that.
> If you want to purchase parts... no problem, how many of each component
> would you like?
> Might as well change everything and have a spare for the next time. I'm
> sure
> this is cheaper.... lol

Page 4 of 6 < 1 2 3 > last >>

Similar Threads	Posted
Need controller.	July 31, 2008, 1:28 pm
Need Blower Controller	July 31, 2006, 2:32 am
Industrial chiller replace (redesign) controller?	May 16, 2007, 3:20 pm
Re: How cold is "beer-can" cold?	October 3, 2009, 11:35 pm
Re: How cold is "beer-can" cold?	October 9, 2009, 10:46 pm
Another toy recall in the making ?	October 15, 2007, 7:21 pm
Making pretty joints	May 2, 2007, 8:27 am
making my air conditioner switch on a fan	June 2, 2008, 7:11 pm
Heat pump making a clicking noise	February 13, 2008, 10:21 pm
Crews making progress restoring natural gas to Buffalo, MN	October 13, 2006, 6:28 pm

Heater controller making it cold in here? - Page 4