Space Ray LTS Series Two Stage User Manual
Page 51
Form #43155040
-50-
May 2013
Call for heat ends and the heater shut
s of
f?
Y
es
No
Troubleshooting ends.
Thermost
at is not
working properly
.
Replace it if necessary
.
Is the green light still on?
Y
es
No
T
urn of
f gas &
electricity immediately
.
Replace the gas valve.
Remove valve lead at ignition module. Does valve close?
No
Y
es
Recheck thermost
at
and wiring.
T
roubleshooting
continued from the previous p
age.
Replace the relay
.
Check the wire connecting relay terminal 4 and terminal L1 for continuity
.
Replace if no continuity
.
Correct connection.
Replace transformer
.
Correct Connection.
Rest
art
troubleshooting.
Check the thermost
at
for continuity
. Replace
if no continuity
.
Is there 24V between terminals 1 and 5 on the relay?
Y
es
No
Are transformer
s two
lead wires securely connected to L1 and L2, respectively?
Is there 24V between transformer terminals on the secondary side?
No
Y
es
Is the red wire connecting relay terminal 5 and terminal LO of round terminal block securely?
No
Y
es
T
roubleshooting
continued from the previous p
age.
Is the black wire connecting one transformer terminal and terminal C of round terminal block securely?
No
Y
es
Is the white wire connecting the other transformer terminal and relay terminal 1 securely?
No
Y
es
Is there 24 V between terminals LO and C on the round terminal?
No
Y
es
Correct connection.
Correct connection.
Correct connection.
No
Y
es
Is the black wire connecting terminal L1 and relay terminal 4 securely?
No
Y
es
Is there 120 V between relay terminal 4 and ground?
No
Y
es
1