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- T3 fl ow sensor ground connection
- T3 fl ow sensor failure
- Controller failure
- Thermostat indirect tank failure
Check the data in Error mode. Boiler data during error:
1 Error = 14
2 Operational status = 00
3 Flow temp. = -22
4 Return temp. = xx*
5 kW burner = 00**
6 % pomp = xx*
* = variable values
**= x3415=BTU/hr
A temperature of - 36 is displayed at position 3. Check the wiring and/or measure the resistance of the fl ow sensor. The resistance should be approx. 12 kOhm at 77°F. (See table in Appendix B)
If necessary, replace the fl ow sensor
