50
_ _ _ _
_
Lockout Alarm A 0 0
Blocking too long e
rror
Enter Installer Menu, Boil
er
Status. Scr
o
ll
to most recent
Lockout Alarm or Blocking Error. Di
a
g
nose corrective action usi
n
g
appropriate Trou
blesh
ooting Tree.
Measure continuity of high
limit sensor (close/open signal) between two pins connected to two purple wires. Is continuity av
ailable? Unplug connector on
supply sensor
.
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
(connected to blue wire) and fourth (connected to 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
continuity
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
fi
red. S
ystem has too
much air
. Close manual
gas v
alv
e (shut off gas).
Purge air from system, w
ait for system to cool.
Replace Supply Sensor
Connect harness
Replace Control
Module
Replace Gas V
alv
e
Replace Harness
13 - TROUBLE SHOOTING
Содержание Olsen OLSSC-299
Страница 47: ...47 13 TROUBLE SHOOTING ...
Страница 51: ...51 13 TROUBLE SHOOTING ...
Страница 53: ...53 13 TROUBLE SHOOTING ...
Страница 62: ...62 Supply Water Temperature Sensor Resistance Chart 13 TROUBLE SHOOTING ...
Страница 66: ...66 14 3 Connection Diagram 299 MBH 14 WIRING DIAGRAM EXTERNAL PUMP RELAY LIMIT OF 1 AMP PER PUMP SEE SECTION 8 ...
Страница 84: ...ECR International Inc 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com ...