46
|
Service Manual
Singular Combi Boiler - BTC 439002301 A (12.2021)
8.16 E2 Error (Exhaust Temperature Overheating)
Error Description
Exhaust Temperature Sensor Error
The syst
em stops combustion and issues an error when the temperature on the exhaust temperature sensor is rising
abnormally (over 208 °F)
Checkpoint
Exhaust temperature sensor error (Wire color: Blue-Blue)
Control board control error
Table 36
Figure 65
Replace the temperature sensor
Replace the control board
Check the assembly
condition of the control board
and the exhaust temperature
sensor connector and
reassemble the control board
and the exhaust temperature
sensor connector
Exhaust gas
temperature < 158 °F
Resistance ≥ 1.85 kΩ
Ye s
No
86 °F: 7.05 kΩ (± error possible)
140 °F: 2.5 kΩ
158 °F: 1.85 kΩ
To Next Page
Loading...
Need help?
General