Dunkirk Q95M-200 Modulating Condensing Boiler - Manual (Page 25)

25
HARD LOCKOUT MODE
Boiler in hard lockout (requires manual RESET)
Display flashes first digit E E and last two digits (lockout code) (see below) xx
Code Reason for hard lockout Code Reason for hard lockout
00 Flame detected on start-up 18 Supply water temperature higher than 200°F
02 Ignition failed after 5 retries 19 Return water temperature higher than 190°F
03 Gas valve disconnected 25 Outlet temperature increased too fast
04 Power lost after lockout 28 No signal from blower; blower not running or defective blower motor
05 Internal control failure 29 Blower signal not “0” when it should be
06 Internal control failure 30
Max difference (b30) was too large for 20 successive times. Non
adjustable default max delta set to 100°F.
07 Internal control failure 31 Outlet temperature sensor short circuit
11 Internal control error 32 Return temperature sensor short circuit
12 Casting temperature switch open 36 Outlet temperature sensor open circuit
13 Internal control failure 37 Return temperature sensor open circuit
14 Internal control failure 44 Internal control failure
15 Internal control failure 60 Internal error reading parameters
16 Internal control failure 61 Air flow circuit failure
17 Internal control failure 65 Not enough blower driving force
10 - USER INTERFACE QUICK REFERENCE