Warranty

whl-648 Rev. 001 Rel. 000 Date 4.11.19
55
B. Error Tree Analysis
1. Flame Detection
Figure 50 - Flame Detection Error Analysis Tree
2. Air Pressure Switch / Burner Overheat Limit / Condensate Block Switch
Figure 51 - APS / Burner Overheat Limit / Condensate Block Switch Error Analysis Tree
3. DHW / Operating Temperature / CH Overheat / Exhaust Sensors
Figure 52 - DHW / Operating Temperature / CH Overheat / Exhaust Sensors Error Analysis Tree