51
13 - TROUBLE SHOOTING
_ _ _ _
_
Lockout Alarm A 0 0
Blocking too long e
rror
Enter Installer Menu, Boil
er
Status. Scr
oll
to
most recent
Lockout Alarm or Blocking Error. Di
agnose corrective action usi
ng
appropriate Trou
blesh
ooting Tree.
Unplug connector on supply
sensor
. Measure continuit
y of high
limit sensor (close/open signal) between two pins connected to two purple wires. Is continuit
y
av
ailable?
NO
YES
Is wire harness connected to both Gas V
alv
e and J13
connector on Control
Module?
NO
YES
Disconnect J13 connector on Control Module. Measure resistance across third (blue wire) and fourth (brown wire)
terminals. Is resistance between 1.0 and 1.2 k
Ω
?
NO
YES
Disconnect harness from Gas V
alv
e. Does each
wire ha
ve continuit
y
between Gas V
alv
e and
Control Module
NO
YES
Is supply pipe (copper pipe at top of boiler)
hot?
NO
YES
Boiler has been dry
fired. S
ystem has too
much air
. Close manual
gas v
alv
e (shut off gas).
Purge air from system, wait for system to cool.
Replace Supply Sensor
Connect harness
Replace Control
Module
Replace Gas V
alv
e
Replace Harness
P/N# 240008888, Rev. O [07/15/2015]
Содержание Dunkirk Helix DKVLT-050
Страница 48: ...48 13 TROUBLE SHOOTING P N 240008888 Rev O 07 15 2015...
Страница 52: ...52 13 TROUBLE SHOOTING P N 240008888 Rev O 07 15 2015...
Страница 54: ...54 13 TROUBLE SHOOTING P N 240008888 Rev O 07 15 2015...
Страница 66: ...66 14 2 Schematic Diagram of Ladder Form 050 075 100 MBH 14 WIRING DIAGRAM P N 240008888 Rev O 07 15 2015...
Страница 67: ...67 14 WIRING DIAGRAM 14 3 Connection Diagram 150 200 299 MBH P N 240008888 Rev O 07 15 2015...