SERVICE PROCEDURES

WARNING: Never service heater while it is plugged in, connected to propane supply, operating or hot. Severe burns and electrical shock can occur.

CLEANING FAN

Clean fan every 500 hours of operation or as needed.

1.Remove screws on side cover using 5/16" nut-driver.

2.Remove side cover.

3.Detach the five motor wires from parts under heater shell. Be sure to detach only wires coming from motor.

The five motor wires are:

white wire—to terminal board

black wire—to terminal board

blue wire—to thermal switch wire

orange wire—to solenoid valve

green wire—to grounding screw on shell

4.Remove fan guard from rear of heater.

5.Reach into rear of heater shell. Carefully pull motor wires through hole in bottom of shell. Note: Pull wires through hole one at a time.

6.Remove nuts and mounting bolts holding motor mount to shell. Use 3/8" nut-driver and 7/16" wrench.

7.Carefully pull motor and fan out of shell. IMPORTANT: Be careful not to damage fan. Do not set motor and fan down with the weight resting on fan. This could damage fan pitch.

8.Turn motor and fan around. Place motor and fan into shell backwards. Note: Motor will go into shell first (see Figure 7).

9.Line up rear mounting holes in shell with first hole on each side of motor mount (see Figure 7). Note: When holes are lined up, fan should be outside of shell.

10.Holding mounting bolt, carefully reach through fan blades into rear of heater. Be careful not to damage fan pitch. Insert bolt through motor mount and shell. With free hand, attach nut finger tight. Repeat process for other mounting hole.

11.Use 1/8" hex wrench to loosen setscrew which holds fan to motor shaft (see Figure 8).

12.Slip fan off motor shaft.

13.Clean fan using soft cloth moistened with kerosene or solvent.

14.Dry fan thoroughly.

Thermal

Grounding

Terminal

Screw

Board

Switch

 

 

 

Wire

 

 

 

 

Solenoid

 

 

Valve

Figure 5 - Location of Motor Wires

Mounting

Motor

Bolts

 

Mount

 

Motor Wires

Figure 6 - Location of Fan and Motor

 

Rear

 

Mounting

 

Hole

 

First

 

Hole

Figure 7 - Fan and Motor Turned Around

Setscrew

Fan

Motor

Shaft

Figure 8 - Fan, Motor Shaft and Setscrew

Location

116699-01B

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Desa 375-F, SBLP375AT owner manual Service Procedures, Cleaning FAN

375-F, SBLP375AT specifications

Desa 375-F and SBLP375AT are innovative heating solutions designed to provide efficient and effective warmth in residential and commercial environments. These models stand out for their technological advancements, energy efficiency, and user-friendly features that cater to modern heating needs.

The Desa 375-F is primarily known for its powerful heating capabilities. It boasts a high efficiency rating, which means it can produce significant heat output while consuming less fuel. This efficiency not only translates to lower energy bills for users but also reduces the carbon footprint associated with heating. The unit is designed for easy installation and maintenance, making it an ideal choice for both new constructions and retrofits.

One of the standout features of the Desa 375-F is its adjustable thermostat, allowing users to set and maintain their desired temperature effortlessly. This feature contributes to comfort while also preserving energy, as the heating system can be programmed to operate only when needed. Additionally, the model incorporates a reliable safety shut-off mechanism that enhances user safety by preventing overheating.

On the other hand, the SBLP375AT model integrates advanced technologies that further enhance heating performance. It comes equipped with a state-of-the-art blower that ensures even heat distribution throughout the space. This feature minimizes cold spots and enhances overall comfort levels in the room. Moreover, the SBLP375AT is designed to be whisper-quiet during operation, making it a great option for bedrooms, offices, or any environment where noise may be a concern.

Both models incorporate high-quality materials and robust construction that ensure durability and long-lasting performance. Users can expect a longer lifespan from these units compared to traditional heating solutions, making them a worthwhile investment. Furthermore, the sleek design of both the Desa 375-F and SBLP375AT allows them to blend seamlessly with various interior styles, maintaining the aesthetic appeal of the space they occupy.

In conclusion, the Desa 375-F and SBLP375AT models exemplify the evolution of heating technology, combining efficiency, safety, and comfort. Whether for residential use or in professional settings, these heating solutions are designed to meet diverse needs while promoting energy conservation and environmental sustainability. Users can benefit from reliable warmth without sacrificing style or performance, making these models standout choices in the heating market.