4000-S
ERIES
I
NSTALLATION
, O
PERATION
AND
S
ERVICE
M
ANUAL
138 of 154
24.3 Burner
PROBLEM
POSSIBLE CAUSE
SOLUTION
Flame control
does not try for
ignition
A
u
xiliary contact not closed.
Properly mo
u
nt contact or replace
B
u
rner/
w
inter s
w
itch closed?
Replace s
w
itch
High temp limit s
w
itch tripped?
Man
u
ally reset or replace
Lo
w
airflo
w
press
u
re s
w
itch contacts not made.
Check blo
w
er operation
Reconnect t
u
bes to press
u
re s
w
itch
Clean press
u
re test t
u
bes
Check filters/d
u
ct
w
ork for restrictions
High airflo
w
press
u
re s
w
itch contacts not made.
Check blo
w
er FLA and compare to data plate.
Cabinet press
u
re too high check system set
u
p
and for restrictions do
w
n stream of blo
w
er.
Optional: Mild
w
eather stat, dial set to lo
w
Set dial higher
Replace stat
Optional: High gas press
u
re s
w
itch
Man
u
al reset
Verify gas press
u
re
Optional: Lo
w
gas press
u
re s
w
itch
Man
u
al reset
Verify gas press
u
re
Flame control defect
Replace
B
u
rner Locko
u
t
Fail
u
re to ignite pilot or main flame
Flame control fail
u
re
Reset the flame control mod
u
le at the
u
nit and
proceed to the next step, obser
v
ing the
u
nit to
indicate at
w
hich step locko
u
t condition occ
u
rs.
No PILOT flame
No spark
Check
w
iring from b
u
rner control to ignition
transformer.
Check high tension
w
ire to spark pl
u
g.
Replace ignition transformer.
No gas
Open man
u
al gas sh
u
t off
v
al
v
es.
Check
w
iring from b
u
rner control to pilot gas
v
al
v
e.
Verify inlet gas press
u
re.
Adj
u
st pilot gas press
u
re.
Replace pilot gas
v
al
v
e.
Check b
u
rner pilot opening for obstr
u
ction.
Pilot flame does
not stay lit
Improper pilot gas press
u
re
Adj
u
st pilot gas press
u
re.
Flame rod does not detect flame, Is there 5VDC
on Flame signal at flame safeg
u
ard?
Replace flame rod
Replace flame rod
Flame rod dirty
Clean flame rod
Summary of Contents for 4044
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Page 73: ...SECTION15 VIBRATION ISOLATION 65 of 154 FIGURE 52 Curb Mounted Roof Curb Roof Curb...
Page 109: ...SECTION19 ELECTRICAL 101 of 154...
Page 110: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 102 of 154...
Page 111: ...SECTION19 ELECTRICAL 103 of 154...
Page 112: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 104 of 154...
Page 113: ...SECTION19 ELECTRICAL 105 of 154...
Page 114: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 106 of 154...
Page 115: ...SECTION19 ELECTRICAL 107 of 154...
Page 116: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 108 of 154...
Page 117: ...SECTION19 ELECTRICAL 109 of 154...
Page 118: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 110 of 154...
Page 119: ...SECTION19 ELECTRICAL 111 of 154...
Page 121: ...SECTION 20 DIRECT FIRED BURNER 113 of 154 FIGURE 71 Midco HMA 2A Burner...
Page 122: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 114 of 154...
Page 125: ...SECTION 20 DIRECT FIRED BURNER 117 of 154...
Page 126: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 118 of 154...
Page 127: ...SECTION 20 DIRECT FIRED BURNER 119 of 154 20 3 Honeywell UV Flame Detector...
Page 160: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 152 of 154...
Page 161: ...SECTION 27 THE RAPID 4000 SERIES WARRANTY 153 of 154...
Page 162: ...4000 SERIES INSTALLATION OPERATION AND SERVICE MANUAL 154 of 154...