UHD L
OW
P
ROFILE
D
UCT
F
URNACE
I
NSTALLATION
O
PERATION
AND
S
ERVICE
M
ANUAL
38 of 47
14.4 Troubleshootin
g
for Gas Valves
14.5 Troubleshootin
g
for Flue Blower
Val
v
e faulty.
Replace with one of
correct type.
Fault elsewhere.
Correct pressure pro
b
lem.
If pro
b
lems persist, contact
Bananza at
www.
b
ananza.com
Val
v
e Operating
TROUBLESHOOT ENDS.
N
o
Yes
Val
v
e or ignition control
faulty. Replace with
one of correct type.
Does gas pressure at
outlet of
v
al
v
e return to zero or
lower when
v
al
v
e turns off?
N
o
Yes
Does gas pressure at outlet
of the
v
al
v
e rise when
v
al
v
e turns on?
N
o
Yes
Is gas pressure at inlet of the
v
al
v
e correct for gas type?
N
ote pressure found.
N
o
Yes
START
For optim
u
m heater performance,
u
se only replacement parts sold and s
u
pplied by Bananza.
Conduct start-up procedure as shown
on Page 26,
S
ec
t
ion 11
.
If pro
b
lems persist, contact
Bananza at
www.
b
ananza.com
Blower Operating
TROUBLESHOOT ENDS.
N
o
Blower motor faulty.
Replace with correct type.
Check
b
lower motor leads
for loose connections.
Correct power
supply pro
b
lem.
Yes
START
Does
b
lower
turn on and
off while
b
urner is firing
continously?
N
o
Yes
Does flue
b
lower run
automatically when there
is a call for heat?
N
o
Yes
Summary of Contents for UHD 125
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Page 29: ...SECTION 9 GAS PIPING 21 of 47 Figure 14 Gas Connection...
Page 43: ...SECTION 14 TROUBLESHOOTING 35 of 47 14 1 General...
Page 54: ...UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL 46 of 47...
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