Service Procedures; Electrical System - SUREHEAT ReddyHeater RH40FA Manual Del Propietário

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
(RH40FA ONLY)
The entire electrical system for this heater is con-
tained 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).
5. 60,000 BTU/Hr Model Only Remove bot-
tom panel to gain access to terminal block.
6. Remove fan wires from terminal block.
7. Disconnect the green power cord wire
from motor and remove black and white
wire terminals.
8. Discard old motor.
9. Attach green power cord wire to motor.
10. Attach fan guard to new motor with two
nuts and two screws.
11. Replace black and white terminals.
12. Place fan onto motor shaft of new mo-
tor. Make sure set screw contacts flat
Screw
Figure 9 - Removing/Replacing Motor
and Fan Guard from Heater
200380-01A

SERVICE PROCEDURES

Screw
Motor and
Fan Guard
www.sureheat.com
surface on motor shaft. Tighten set screw
firmly (40-50 inch-pounds [46.08-57.60
kilogram-centimeters]).
13. Place motor and fan guard into rear of
heater shell. Make sure power cord is
properly located.
14. Insert three screws through heater shell
and into fan guard (see Figure 9). Tighten
screws firmly.
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 that
holds fan to motor shaft (see Figure 10).
4. Remove fan. Be careful not to damage
the fan blade pitch.
5a. If replacing fan, remove old fan and dis-
card. Go to step 7.
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 (40-50
inch-pounds [46.08-57.60 kg-cm]).
8. Place motor and fan guard into rear of
heater shell. Make sure power cord is
properly located (see Figure 9).
9. Insert three screws through heater shell
and into fan guard. Tighten screws firmly.
Figure 10 - Setscrew Location
Motor
Figure 11 - Removing or Attaching Fan
Guard from Motor
FAN
Setscrew
Fan
Guard
Screw
9