Service Procedures - Master B35CED Owner's Manual

SERVICE PROCEDURES

8
SERVICE PROCEDURES
WARNING: Never service heater while it is plugged
in, operating, or hot. Severe burns and electrical
shock can occur.
UPPER SHELL REMOVAL
1. Remove screws and lock washers along each side of heater
using 5/16" nut-driver. These screws attach upper and lower
shells together.
2. Lift upper shell off.
3. Remove fan guard.
FUEL FILTER
(35/70,000 Btu/Hr Models)
1. Remove side cover screws using 5/16" nut-driver.
2. Remove side cover.
3. Pull rubber fuel line off fuel filter neck.
4. Carefully pry bushing and fuel filter out of fuel tank.
5. Wash fuel filter with clean fuel and replace in tank.
6. Attach rubber fuel line to fuel filter neck.
7. Replace side cover.
FUEL FILTER
(100/150,000 Btu/Hr Models)
1. Remove side cover screws using 5/16" nut-driver.
2. Remove side cover.
3. Pull upper fuel line off fuel filter neck.
4. Carefully pry bushing, lower fuel line, and fuel filter out of
fuel tank.
5. Wash fuel filter with clean fuel and replace in tank.
6. Attach upper fuel line to fuel filter neck.
7. Replace side cover.
Upper Shell
Fan
Guard
Figure 7 - Upper Shell
Removal, 35/70,000 Btu/Hr
Models
Upper
Shell
Fan
Guard
Figure 8 - Upper Shell
Removal, 100/150,000 Btu/Hr
Models
Fuel Filter
Side Cover
Figure 9 - Fuel Filter Removal, 35/70,000 Btu/Hr Models
Fuel Filter, Bushing,
and Lower Fuel Line
Side Cover
Figure 10 - Fuel Filter Removal, 100/150,000 Btu/Hr Models
Fuel Line
Upper Fuel
Line
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