I own a Trinity Ti150 combination heating and domestic water system. The house I moved into last year was mostly empty for 6 years. The unit was not serviced, but still used as a heat source.
I am finding that the hot water is fluctuating and it has been getting worse.
The unit has been torn down and fully cleaned. (this should be done once a year but went six years without).
The mixing valve body has been changed. (old one was seized)
I think I need to change the brazing plate heat exchanger. There are signs of corrosion on the exterior of the heat exchanger.
Anyone know much about these units?
Is that the problem?
or is there something else i should look into?