Burnham Boiler Intermittent
#1
12-04-06, 08:26 PM
Burnham Boiler Intermittent
system fires up ok but only runs for 1 min. before shutting down.
I am thinking it could be circulator pump and high limit switch shuts system down?
The pump is a B&G NRF22 - it is not hot to the touch -
I am thinking it could be circulator pump and high limit switch shuts system down?
The pump is a B&G NRF22 - it is not hot to the touch -
#2
12-04-06, 09:34 PM
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Are you using zone valves or a circulator pump for each zone? If no zone valve, does the thermostat connect to the pump or the relay/aquastat first? How many zones do you have?
It sounds like you are running a single pump and that the zone valves or relay are too blame, but more info including probably a couple of trouble shoot tests are needed to narrow it down.
It sounds like you are running a single pump and that the zone valves or relay are too blame, but more info including probably a couple of trouble shoot tests are needed to narrow it down.
#3
12-05-06, 05:42 AM
burnham
Originally Posted by M. Under Bone
Are you using zone valves or a circulator pump for each zone? If no zone valve, does the thermostat connect to the pump or the relay/aquastat first? How many zones do you have?
It sounds like you are running a single pump and that the zone valves or relay are too blame, but more info including probably a couple of trouble shoot tests are needed to narrow it down.
It sounds like you are running a single pump and that the zone valves or relay are too blame, but more info including probably a couple of trouble shoot tests are needed to narrow it down.
this is one loop system to small apt.
#4
12-05-06, 03:53 PM
Can you tell if the circulator is running ?
Do the pipes get hot at any distance from the circulator ?
When you say it goes for a minute and shuts down, it's not tripping the control on the burner, right ? I mean, you don't need to push the reset button to get it to fire again, do you ? If that's the case, then you have a problem with the burner itself.
When it shuts off, what temperature is showing on the boiler gauge ? Is it actually hitting high limit (appx 160-180*F) ?
Do the pipes get hot at any distance from the circulator ?
When you say it goes for a minute and shuts down, it's not tripping the control on the burner, right ? I mean, you don't need to push the reset button to get it to fire again, do you ? If that's the case, then you have a problem with the burner itself.
When it shuts off, what temperature is showing on the boiler gauge ? Is it actually hitting high limit (appx 160-180*F) ?
#5
12-05-06, 10:23 PM
Originally Posted by NJ Trooper
Can you tell if the circulator is running ?
Do the pipes get hot at any distance from the circulator ?
When you say it goes for a minute and shuts down, it's not tripping the control on the burner, right ? I mean, you don't need to push the reset button to get it to fire again, do you ? If that's the case, then you have a problem with the burner itself.
When it shuts off, what temperature is showing on the boiler gauge ? Is it actually hitting high limit (appx 160-180*F) ?
Do the pipes get hot at any distance from the circulator ?
When you say it goes for a minute and shuts down, it's not tripping the control on the burner, right ? I mean, you don't need to push the reset button to get it to fire again, do you ? If that's the case, then you have a problem with the burner itself.
When it shuts off, what temperature is showing on the boiler gauge ? Is it actually hitting high limit (appx 160-180*F) ?
What is the high limit proper setting? the dial shows up to 240F?
#7
04-12-07, 09:00 PM
if the system fireups and everything is in place , could be the flame sensor.
if its a honeywell intermittent control board .
If you dont have a spare flame sensor try to clean it with some sand paper.
if its a honeywell intermittent control board .
If you dont have a spare flame sensor try to clean it with some sand paper.
