No circulators or burner..... Bad aquastat?

Reply

  #1  
Old 10-26-11, 11:14 AM
Member
Thread Starter
Join Date: Oct 2011
Location: Usa
Posts: 6
Received 0 Votes on 0 Posts
No circulators or burner..... Bad aquastat?

My burner and my circulators are not turning on though the water temp is well below the low setting on my aquastat and my thermostats are both set higher than the room temperature. I will give some background and troubleshooting results:

My aquastat is a honeywell l4081b 1047, and the burner is a Beckett afg. The aquastat has a differential setting which I believe (correct me if I'm wrong) allows the circulators to go on before the burner within a certain range around the temp setting.
I have two zones, both with high voltage thermostats
Prior to this issue and ever since we moved in, the aquastat has been set on the high side to 140 which I know is wrong but at 140 it operated perfectly at 180 like all boilers should.

I think my issue is with the aquastat just based on how it seems he system works and what's happening. Any insight?
 
Sponsored Links
  #2  
Old 10-26-11, 11:26 AM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 17,829
Received 19 Votes on 17 Posts
For reference.
http://customer.honeywell.com/techli...it/60-2105.pdf

What do you have the high, low, and diff set at????

How do you heat your hot water?

Mike NJ
 
  #3  
Old 10-26-11, 11:32 AM
Member
Thread Starter
Join Date: Oct 2011
Location: Usa
Posts: 6
Received 0 Votes on 0 Posts
Hot water is eat through the boiler (what's the proper term for that?)

Low setting was at i believe 120
High was at 140 - If I set it to 180, the temp would reach 220 and the releif valve would open. Set to 180 it's regulates at 180.
The diff was I believe at 10 degrees.

If the aquastat is working properly, what Gould all these be set at?
 
  #4  
Old 10-26-11, 11:41 AM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 17,829
Received 19 Votes on 17 Posts
the temp would reach 220 and the releif valve would open. Set to 180 it's regulates at 180.
What does this mean? If you set at 140f high the boiler gauge reads 220f????

The relief valve then trips????

Set to 180f it regulates at 180f??? Contradicting???

Since you heat your HW with the boiler, ( tankless coil) I believe proper setting is 180f hi, 140 lo, and 10 diff.

Trooper can verify when he comes online.

We will wait for the answer above, but either you have a faulty aquastat, boiler gauge, or your settings are reversed.

Mike NJ
 
  #5  
Old 10-26-11, 11:55 AM
Member
Thread Starter
Join Date: Oct 2011
Location: Usa
Posts: 6
Received 0 Votes on 0 Posts
I said the high was set t 140 and always operated at 180 (not normal), I I set the high to 180 it goes up to 220 and the relief valve trips. Prior to my issue he aquastat always seemed to have to be set 40 lower than normal to work at a normal temp
 
  #6  
Old 10-26-11, 12:00 PM
Member
Thread Starter
Join Date: Oct 2011
Location: Usa
Posts: 6
Received 0 Votes on 0 Posts
The boiler gauge meaning the temp gauge in front of the boiler? Isn't that just a gauge and has no control over the system?
 
  #7  
Old 10-26-11, 12:09 PM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 17,829
Received 19 Votes on 17 Posts
Just trying to determaine if your gauge is off.

I would say bad aquastat.

Mike NJ
 
  #8  
Old 10-26-11, 12:15 PM
Member
Thread Starter
Join Date: Oct 2011
Location: Usa
Posts: 6
Received 0 Votes on 0 Posts
No I understand. I feel like if the gauge was off by 40 then when it reads 220, it would really be at 180 and the relief valve would be ok. I've assumed aquastat the whole time. Just want to make sure before I spend the dough
 
  #9  
Old 10-26-11, 12:23 PM
lawrosa's Avatar
Super Moderator
Join Date: Dec 2010
Location: Galivants Ferry SC USA
Posts: 17,829
Received 19 Votes on 17 Posts
Yeah if you wait until later other gents will post. There may be a way to test it to be sure.

There is another poster with a 140f issue also. Only his boiler will not go above 140f.

I wonder if its a default type failure on these. 140f seems to be the common factor.

Mike NJ
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: