I have an older house that I purchased last year with a boiler that was installed in 2017. The boiler runs when the thermostat calls for heat, but once the high limit gets hit it seems to cycle on / off quicker than I'd expect, running for only around 4 minutes per heating cycle until the boiler's hi limit hits. I am looking for some help on determining if this is expected or not....
Boiler Model: Smith 8HE
Controller: Hydrostat Hydrolevel 3250 Plus
To test the timing I set the high limit high @205. Timing (mm:ss) of the "short cycle"
Boiler Model: Smith 8HE
Controller: Hydrostat Hydrolevel 3250 Plus
To test the timing I set the high limit high @205. Timing (mm:ss) of the "short cycle"
- 00:00 - T = 205F - Hydrostat hits "hi alarm", boiler turns off
- 02:05 - T = 195F - "hi alarm" clears, boiler fires
- 06:37 - T = 205 - "hi alarm", boiler turns off