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User manual Desa, model BLP30

Manafacture: Desa
File size: 285.87 kb
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Language of manual:en

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manual abstract


6 104163 OWNER’S MANUAL TROUBLESHOOTING WARNING: Never service heater while it is plugged in, connected Note: For additional help, visit DESA to propane supply, operating, or hot. Severe burns and electrical International’s Technical Service web shock can occur. site at OBSERVED FAULT POSSIBLE CAUSE REMEDY Fan does not turn when heater is plugged in. 1. No electrical power to heater 1. Check voltage to electrical outlet. If voltage is good, check heater power cord for breaks 2. Fan hitting inside of heater shell 2. Adjust motor/fan guard to keep fan from hitting inside of heater shell. Bend fan guard if necessary 3. Fan blades bent 3. Replace fan. See Fan, page 9 4. Defective motor 4. Replace motor. See Motor, page 8 Heater will not ignite. 1. User did not follow installation or operation instructions properly 2. No spark at ignitor. To test for spark, follow step 8 under Ignitor, page 10. If you see spark at ignitor, have heater serviced by qualified service person. If no spark seen: A) Loose or disconnected ignitor wire B) Wrong spark gap C) Piezo ignitor loose D) Bad ignitor electrode 1. Repeat installation and operation instructions. See Installation, page 4 and Operation, page 5 2. A) Check ignitor wire. Tighten or reattach loose ignitor wire. See Figure 14, page 10 for ignitor wire location B) Set gap between ignitor electrode and target plate to .17" C) Tighten nut holding piezo ignitor to base of heater D) Replace ignitor electrode. See Ignitor, page 10 Heater shuts down while running. 1. High surrounding air temperature caus-1. This can happen when running heater in ing thermal limit device to shut down temperatures above 85°F. Run heater in heater cooler temperatures 2. Restricted air flow 2 Check heater inlet and outlet. Remove any obstructions 3. Damaged fan 3. Replace fan. See Fan, page 9 4. Excessive dust or debris in surrounding area4. Clean heater. See Maintenance, page 6 WARNING: Use only in areas free of high dust content. 104163 7 30,000 BTU/Hr PROPANE CONSTRUCTION HEATER SERVICE PROCEDURES You can also visit DESA International’s Technical Service web site at WARNING: Never service heater while it is plugged in, connected to propane supply, operating, or hot. Severe burns and electrical shock can occur. ELECTRICAL SYSTEM The entire electrical system for this heater is contained within the motor. If any part of the electrical system is damaged, you must replace motor. MOTOR 1. Remove three screws that attach fan guard to heater shell. 2. Remove motor and fan guard from heater shell (see Figure 9). 3. Use hex wrench to loosen set screw which holds fan to motor shaft (see Figure 10). Remove fan. Be careful not to damage the fan blade pitch. 4. Remove two nuts and two screws that attach fan guard to motor using nut- driver. Remove fan guard from motor (see Figure 11). Disconnect the green power cord wire from motor and remove black and white wire terminals. 6. Discard old motor. 7. Attach green power cord wire to motor. 8. Attach fan guard to new motor with two nuts and two screws. 9. Replace black and white terminals. 10. Place fan onto motor shaft of new motor. Make sure set screw contacts flat surface on motor shaft. Tighten set screw firmly (40-50 inch-pounds). 11. Place motor and fan guard into rear of heater shell. Make sure power cord is properly located (see Figure 12). 12. Insert three screws through heater shell and into fan guard. Tighten screws firmly. Figure 9 - Removing Motor and Fan Guard from Heater Setscrew Figure 10 - Setscrew Location Figure 11 - Removing or Attaching Fan Guard from Motor Figure 12 - Replacing Motor and Fan Guard into Heater 8 104163 OWNER’S MANUAL SERVICE PROCEDURES Continued FAN 1. Remove three screws that attach fan guard to heater shell. 2. Remove motor and fan guard from heater shell (see Figure 13). 3. Use hex wrench to loosen set screw that holds fan to motor shaft (see Figure 14). 4. Remove fan. Be careful not to damage the fan blade pitch. 5a. If replacing fan, remove old fan and discard. Go to step 7 below. 5b. If cleaning fan,use soft cloth moistened with kerosene or solvent. 6. Dry fan thoroughly. 7. Place fan onto motor shaft. Make sure set screw contacts flat surface on motor shaft. Tighten set screw firmly (4050 inch-pounds). 8. Place motor and fan guard into rear of heater shell. Make sure power cord is properly located (see Figure 15). 9. Insert three screws through heater shell Setscrew and into fan guard. Tighten screws firmly. Figure 13 - Removing Motor and Fan Guard from Heater Figure 14 - Setscrew Location Figure 15 - Replacing Motor and Fan Guard into Heater Continued 104163 9 30,000 BTU/Hr PROPANE CONSTRUCTION HEATER SERVICE PROCEDURES Continued IGNITOR 1. Remove motor and fan guard from heater (see Motor, page 8, steps 1 and 2). 2. Remove black ignitor wire from piezo ignitor. Access ignitor wire through underside of heater base (see Figure 16). Push wire up through notch in fille...

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Electric Heaters - 30LP (285.87 kb)

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