B
Boootch
Hello everyone,
I'm hoping someone can throw some ideas at my problem before I call a plumber.
About a month ago, my DHW occasionally started running cold for 30 seconds or so during a long, hot shower.
Over the last week, the problem has become much more frequent and I can no longer run a bath without the intermittent cold bursts cooling it down.
The pattern appears to be that the hot water runs fine for almost a minute, the flame cuts out, then cold water for 20-30 seconds, then the flame ignites.
This cycle repeats over and over.
My heating seems to be running just fine.
The display temperature is a consistent with the hot water temperature coming out of my adjacent kitchen sink.
The flame is responding accordingly to me turning the CH and DHW thermostats up and down.
The fans are working as/when they should.
The only clues I have:
The top of the boiler was making a loud roaring/bubbling sound before going cold.
The filling loop doesn't fill the CH system as quickly as it used to - This happened a couple of years ago and it turned out to be a piece of solder trapped in the filling loop's non-return valve!
Any ideas...?
I'm hoping someone can throw some ideas at my problem before I call a plumber.
About a month ago, my DHW occasionally started running cold for 30 seconds or so during a long, hot shower.
Over the last week, the problem has become much more frequent and I can no longer run a bath without the intermittent cold bursts cooling it down.
The pattern appears to be that the hot water runs fine for almost a minute, the flame cuts out, then cold water for 20-30 seconds, then the flame ignites.
This cycle repeats over and over.
My heating seems to be running just fine.
The display temperature is a consistent with the hot water temperature coming out of my adjacent kitchen sink.
The flame is responding accordingly to me turning the CH and DHW thermostats up and down.
The fans are working as/when they should.
The only clues I have:
The top of the boiler was making a loud roaring/bubbling sound before going cold.
The filling loop doesn't fill the CH system as quickly as it used to - This happened a couple of years ago and it turned out to be a piece of solder trapped in the filling loop's non-return valve!
Any ideas...?
