TM 9-2540-205-24&P
TROUBLESHOOTING-CONTINUED
HUPP MF510B, MF510C, MF60A-24V, MF60B-24V - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1, HEATER DOES NOT START–CONTINUED
Step 13. Check for defective capacitor. Remove wire 8 (4) from terminal 8 and place red multi-
meter probe on wire 8 (4) while placing black multimeter probe on capacitor ground
screw (5). If reading is one ohm or more, replace capacitor (page 3-39).
Step 14. Check for defective blower motor by placing red multimeter probe on terminal 8 of termi-
nal strip (3) and black probe on ground.
If multimeter reading is greater than 0.5 ohms, replace blower motor (page
3-62).
Step 15. Check for defective flame detector switch resistor by placing red multimeter probe on
common terminal of flame detector switch (6) and black probe on terminal 8 of terminal
strip (3).
If multimeter reading is less than 7 ohms or more than 9 ohms, replace flame -
detector switch (page 2-33).
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