SECTION 27: T
ROUBLESHOOTING
189 of 198
Code 3-1
*R
u
nning/
Interlock S
w
itch
Pro
b
lem*
R
u
nning or Locko
u
t
Interlock fa
u
lt d
u
ring
Prep
u
rge.
1.
Check
w
iring; correct any errors.
2.
Inspect the fan; make s
u
re there is no air intake
b
lockage and that it is s
u
pplying air.
3.
Make s
u
re the Locko
u
t Interlock s
w
itches are f
u
nctioning properly and the contacts are free
from contaminants.
4.
Reset and seq
u
ence the relay mod
u
le to Prep
u
rge (place the TEST/RUN S
w
itch in the TEST
position, if a
v
aila
b
le). Meas
u
re the
v
oltage
b
et
w
een terminal 7 and G (gro
u
nd); 120 Vac
sho
u
ld
b
e present. S
w
itch TEST/RUN
b
ack to RUN.
5.
If steps 1 thro
u
gh 4 are correct and the fa
u
lt persists, replace the relay mod
u
le.
Code 3-2
*R
u
nning/
Interlock On
D
u
ring
Stand
b
y*
Locko
u
t Interlock
po
w
ered at improper
point in seq
u
ence or On
in Stand
b
y.
1.
Check
w
iring to make s
u
re that the Locko
u
t Interlocks are connected properly
b
et
w
een termi-
nals 6 and 7. Correct any errors.
2.
Reset and seq
u
ence the relay mod
u
le.
3.
If the fa
u
lt persists, meas
u
re the
v
oltage
b
et
w
een terminal 6 and G (gro
u
nd),then
b
et
w
een ter-
minal 7 and G. If there is 120 Vac at terminal 6
w
hen the controller is off, the controller s
w
itch
may
b
e
b
ad or is j
u
mpered.
4.
If steps 1 thro
u
gh 3 are correct and there is 120 Vac at terminal 7
w
hen the controller is closed
and the fa
u
lt persists, check for a
w
elded or j
u
mpered R
u
nning Interlock or Airflo
w
S
w
itch. Cor-
rect any errors.
5.
If steps 1 thro
u
gh 4 are correct and the fa
u
lt persists, replace the relay mod
u
le.
Code 3-3
*VPS in
Improper State*
VPS (Val
v
e Pro
v
ing
S
w
itch) in
w
rong state
d
u
ring VPS Test.
1.
Check
w
iring, making s
u
re
u
pstream
v
al
v
e is connected to terminal 9 and do
w
nstream
v
al
v
e is
connected to terminal 17.
2.
Cond
u
ct Val
v
e Seat leakage test
u
sing a manometer.
3.
Reset and seq
u
ence the relay mod
u
le; if fa
u
lt repeats, test VPS (connected to terminal 16) is
f
u
nctioning properly; replace if necessary.
4.
Reset and seq
u
ence the relay mod
u
le.
5.
If fa
u
lt persists, replace the relay mod
u
le.
Code 4-1
*P
u
rge Card
Pro
b
lem*
No p
u
rge card or the
p
u
rge card timing has
changed from the
original config
u
ration.
1.
Make s
u
re the p
u
rge card is seated properly.
2.
Inspect the p
u
rge card and the connector on the relay mod
u
le for any damage or contami-
nants.
3.
Reset and seq
u
ence the relay mod
u
le.
4.
If the fa
u
lt code reappears, replace the p
u
rge card.
5.
Reset and seq
u
ence the relay mod
u
le.
6.
If the fa
u
lt code persists, replace the relay mod
u
le.
Code 4-2
*Wiring
Pro
b
lem/
Internal Fa
u
lt*
Pilot (ignition)
v
al
v
e
terminal, main
v
al
v
e,
ignition or Main Val
v
e 2
w
as on
w
hen it sho
u
ld
b
e off.
Electrical Shock Hazard; Fire or Explosion Hazard.
Can cause severe injury, death or property dama
g
e.
Remo
v
e system po
w
er and t
u
rn off po
w
er s
u
pply.
1.
Remo
v
e system po
w
er and t
u
rn off f
u
el s
u
pply.
2.
Check
w
iring; correct any errors.
3.
inspect Pilot F
u
el Val
v
e(s),
b
oth places, and connections.
4.
Reset and seq
u
ence the relay mod
u
le.
5.
If the fa
u
lt persists, replace the relay mod
u
le.
Code 4-3
*Flame
Amplifier
Pro
b
lem*
Flame not sensed, or
sensed
w
hen it sho
u
ld
b
e on or off.
1.
Check
w
iring; correct any errors.
2.
Make s
u
re the flame amplifier and flame detector are compati
b
le.
3.
Remo
v
e the flame amplifier and inspect the connections. Reseat the amplifier.
4.
Reset and seq
u
ence the relay mod
u
le.
5.
If the code reappears, replace the flame amplifier and/or the flame detector.
6.
If the fa
u
lt persists, replace the relay mod
u
le.
Code 4-4
*Config
u
ration
J
u
mper Pro
b
lem*
The config
u
ration
j
u
mpers differ from the
sample taken at start
u
p.
1.
Inspect the j
u
mper connections. Make s
u
re the clipped j
u
mpers
w
ere completely remo
v
ed.
2.
Reset and seq
u
ence the relay mod
u
le.
3.
If the fa
u
lt persists, replace the relay mod
u
le.
Code 5-1
*Preignition
Interlock*
Preignition Interlock
fa
u
lt.
1.
Check
w
iring and correct any errors.
2.
Check Preignition Interlock s
w
itches to ass
u
re proper f
u
nctioning.
3.
Check f
u
el
v
al
v
e operation.
4.
Reset and seq
u
ence the relay mod
u
le; monitor the Preignition Interlock stat
u
s.
5.
If the fa
u
lt persists, replace the relay mod
u
le.
Code 5-2
*High Fire S
w
.
or Lo
w
Fire
S
w
.*
Either High Fire S
w
itch
or Lo
w
Fire S
w
itch
fail
u
re.
1.
Check
w
iring and correct any errors.
2.
Reset and seq
u
ence the relay mod
u
le.
3.
Use man
u
al motor potentiometer to dri
v
e the motor open and closed. Verify at motor s
w
itch
that the end s
w
itches are operating properly. Use RUN/TEST s
w
itch if man
u
al potentiometer is
not a
v
aila
b
le.
4.
Reset and seq
u
ence the relay mod
u
le.
5.
If the fa
u
lt persists, replace the relay mod
u
le.
Summary of Contents for TT Series
Page 2: ......
Page 4: ......
Page 136: ...TT SERIES INSTALLATION OPERATION AND SERVICE MANUAL 130 of 198 FIGURE 114 Regulator RV61 ...
Page 167: ...SECTION27 TROUBLESHOOTING 161 of 198 ...
Page 175: ...SECTION27 TROUBLESHOOTING 169 of 198 ...
Page 177: ...SECTION27 TROUBLESHOOTING 171 of 198 ...
Page 198: ...TT SERIES INSTALLATION OPERATION AND SERVICE MANUAL 192 of 198 ...
Page 202: ...TT SERIES INSTALLATION OPERATION AND SERVICE MANUAL 196 of 198 ...
Page 203: ...SECTION 28 THE WEATHER RITE TT SERIES WARRANTY 197 of 198 ...
Page 204: ...TT SERIES INSTALLATION OPERATION AND SERVICE MANUAL 198 of 198 ...