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Triangle Tube Prestige Excellence 110. NO HEAT!
I have a Triangle Tube Prestige Excellence 110 that is supposed to provide hydronic heat and DHW for a small (750 sf) condo. The system provides plenty of DHW but NO heat.
The display never shows STBY. It just sits at 6186 at the end of the 1***, 2***, 4*** cycle. The DHW and CH PARAMETERS are 1130 and 4130. The INFO items 1 and 2 always stay about the same (~170). INFO item 3 varies from about 80 to a max of 126.
When I lowered PARA 1 to 100 the heat worked (I got some 3*** display codes and INFO items 1 and 2 changed), but the shower water was not warm enough for long enough.
I'm guessing that the DHW thermostat is reading too low so the system never switches into heating mode. Is that a reasonable guess? Or are there any other things I could try to isolate the problem? Thanks!
It may be irrelevant, but last winter the system worked just fine. This spring (after heating season) a technician came in to diagnose a problem that turned out to be due to an unsealed vent pipe. Don't know if he messed anything up, but don't see how he could have.
Also maybe irrelevant, the system has no outdoor temperature sensor.