user manual

PART NO.
KEY NO. DESCRIPTION DFA45 DFA65/65T DFA120/120T DFA170T/170C DFA210T/210C
1 Fuel Tank Assembly “Pre 04” 21-1001 21-1001 21-1002 21-1003 21-1003
1 Fuel Tank Assembly 04-05 21-1401 21-1401 21-1402 21-1403 21-1403
1.1 Drain Plug N/A N/A 21-4401 21-4401 21-4401
2 Fuel Gauge 21-1004 21-1004 21-1005 21-1005 21-1005
3 Fuel Filter Assembly 21-1006 21-1006 21-1007 21-1007 21-1007
4 Fuel Cap 21-1008 21-1008 21-1008 21-1008 21-1008
5 Power Cord 21-1009 21-1009 21-1009 21-1009 21-2101
6 Power Switch 21-1010 21-1010 21-1010 21-1010 21-1010
7 Display P.C.B. Assembly 21-1011 21-1011 21-1011 21-1012 21-1012
8 Thermostat Control Knob ----- ----- 21-1013 21-1013 21-1013
9 Lower Shell Reference Reference Reference Reference Reference
10 Air Line 21-1017 21-1017 21-1018 21-1069 21-2108
11 Temperature Limit Control 21-1019 21-1019 21-1020 21-1020 21-2109
12 Combustion Chamber 03 21-1021 21-1021 21-1022 21-1023 21-2110
13 Photocell Holder Reference Reference Reference Reference Reference
14
Fuel Line
21-1024
21-1024 21-1025 21-1025 21-2111
15 Photocell FA1007 FA1007 FA1007 FA1007 FA1023BK
16
Burner Head
Assembly
Reference Reference Reference Reference Reference
16-1 Nozzle Kit FA1001 FA1002 FA1003 FA1004 FA1011BK
16-2 Nozzle Seal Washer 21-1027 21-1027 21-1027 21-1027 21-1027
16-3 Nozzle Seal Spring 21-1028 21-1028 21-1028 21-1028 21-1028
16-4 Burner Head 21-1029 21-1029 21-1030 21-1031 21-1031
16-5 Spark Plug FA1008 FA1008 FA1009 FA1009 FA1021BK
17 Motor and Pump Assembly Reference Reference Reference Reference Reference
17-1
Motor
21-1035
21-1035
21-1036
21-1037 21-2119
17-2 Pump Body 21-1038 21-1038 21-1038 21-1038 21-2120
17-3
Rotor Kit FA1000 FA1000 FA1000 FA1000 FA1022BK
Rotor Only 21-2125
PLEASE READ OWNER’S MANUAL BEFORE PERFORMING
ANY MAINTENANCE OR SERVICE
DuraHeat
®
Forced Air
Parts & Service Guide
FFOORR TTEECCHHNNIICCAALL
AASSSSIISSTTAANNCCEE CCOONNTTAACCTT UUSS AATT::
Tech Assistance: 814-643-2299
Ordering: 800-233-3202
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DuraHeat
®
Forced Air Heater
Troubleshooting Guide
Air Pressure Problems
Always use an air pressure gauge to check or set air pressures.
DFA-45 2.8 PSI DFA-170T,170C 6.5 PSI
DFA-65 3.5 PSI DFA-210T,210C 8.5 PSI
DFA-120,120T 4.5 PSI
If the pressure is TOO LOW turn the adjustment screw clockwise. This will increase the flame.
If the pressure is
TOO HIGH turn the adjustment screw counter-clockwise to reduce the flame.
Note: If the heater burns OK with the Upper Shell off, but turns off when the cover is installed, the
pressure is too low.
If you can't achieve the proper pressure setting - try pulling the air line off the pump body and block
air line fitting tight
with finger then remove adjustment screw and plug the hole tight
with another fin-
ger.
This should peg pressure gauge. If it does not, the problem is inside the pump body.
Check for: Cracked plastic cover
Cracked pump body
Cracked rotor
Loose pump body screws
Rubber seal on filter seated properly
Sometimes it's hard to see the air leak. A solution of 50/50 soap and water can be applied to the
pump to find the leak.
CAUTION! BE CAREFUL NOT TO APPLY THIS SOLUTION TO ANY ELECTRICAL PARTS AS
IT WILL DAMAGE THE COMPONENTS AND CREATE A SHOCK HAZARD.
If pressure gauge does peg - try removing the air line from the nozzle end and replace it at pump
body end. Then plug air line and adjustment screw end. If it
does not peg the gauge, then the
problem lies with the Air Line. The air line may be cracked, cut, torn, split, rotted, etc.
Replace the
Air Line to correct the problem.
OWNER’S MANUAL NOTE:
(WARNING) Always review the owner’s manual completely before
operating or attempting to service or repair any appliance. Failure to follow all instructions provided
in the owner’s manual may result in property damage, personal injury, or death.
7/07 Pt. No. FAPARTS