Howdy folks,
Desperate here...help needed please.
Recently, a NCB-240 was installed in my home having replaced a CH-240 (whistling noise issue).
I live in Toronto, Canada and it - like most of eastern Canada-US - has faced some extreme cold days as of late. My home has cast iron baseboard radiators. Single zone setup.
For some reason, I canno't get the heating system to increase the room temperature. The rads get very hot but no improvement in room temperature. For example, today it is about 12F outdoor. I've set the thermostat to 73F and the unit keeps running steady but canno't get to the desired indoor temperature. Never had this issue with the old conventional boiler or previous CH model.
My technician put in a bigger pump. No effect. Called Navien, they had me adjust the high temperature dip switch but again no improvement.
My readings are supply=177, return=148.
My mind is officially boggled as I am trying to trouble shoot this. My technician is equally perplexed.
Any insight from this community is much appreciated from your friend in the North.
Marco
Desperate here...help needed please.
Recently, a NCB-240 was installed in my home having replaced a CH-240 (whistling noise issue).
I live in Toronto, Canada and it - like most of eastern Canada-US - has faced some extreme cold days as of late. My home has cast iron baseboard radiators. Single zone setup.
For some reason, I canno't get the heating system to increase the room temperature. The rads get very hot but no improvement in room temperature. For example, today it is about 12F outdoor. I've set the thermostat to 73F and the unit keeps running steady but canno't get to the desired indoor temperature. Never had this issue with the old conventional boiler or previous CH model.
My technician put in a bigger pump. No effect. Called Navien, they had me adjust the high temperature dip switch but again no improvement.
My readings are supply=177, return=148.
My mind is officially boggled as I am trying to trouble shoot this. My technician is equally perplexed.
Any insight from this community is much appreciated from your friend in the North.
Marco