36680 Sail Switch

Replacement for Atwood Hydro Flame RV Camper Furnace

Models 36133 31377 1522 2-Stage

2-Pack

【Wide Application】

Sail switch designed for RV and campers heater furnace fault use. And this sail switch is compatible with Atwood / Hydro Flame furnaces models: 1522 2 Stage, 1522 LD 2 Stage, 2334 2 Stage, 2540 2 Stage, 7912-II, 7916-II, 7920-II, 8516-II, 8516-III, 8516-IV, 8520-II, 8520-III, 8520-IV, 8525-II, 8525-III, 8525-IV, 8531-II, 8531-III, 8531-IV, 8535-II, 8535-III, 8535-IV, 8935-DC-I, 8935-AC-I, 8940-DC-I, 8940-AC-I, 8935-DC-II, 8935-AC-II, 8940-DC-II, 8940-AC-II, 8935-DC-III, 8935-AC-III, 8940-DC-III, 8940-AC-III.

【Part Number Replacement】

36680, 31377, 35050, 35052, 35054, 35137, 36133, 37716.

【36680 Sail Switch】

Sail switch is the first of two safety switches in the forced-hot-air system. It exists to prevent the furnace from even trying to ignite if the blower fan can’t run at the proper speed. This can happen under certain circumstances, including if your RV’s house battery bank is discharged too low to run the fan at full speed.

【High Quality Materials】

Sail switch is made of high quality materials, durable, higher sensitivity, safe and security work, flexible control your RV or camper furnace.

【Package Include】

2PCS 36680 Sail Switch.

【Replaces Part Numbers】

36680, 31377, 35050, 35052, 35054, 35137, 36133, 37716

【Applicable to Models】

1522 2 STAGE, 1522 LD 2 STAGE, 2334 2 Stage, 2540 2 Stage, 7912-II,
7916-II, 7920-II, 8516-II, 8516-III, 8516-IV, 8520-II, 8520-III, 8520-IV, 8525-II,
7917-8525-III, 8525-IV, 8531-II, 8531-III, 8531-IV, 8535-II, 8535-III, 8535-IV

【Applicable to Models】

8935-DC-I, 8935-AC-I, 8940-DC-I, 8940-AC-I, 8935-DC-II, 8935-AC-II,
8940-DC-II, 8940-AC-II, 8935-DC-III, 8935-AC-III, 8940-DC-III, 8940-AC-III.

HOW TO INSTALL?

STEP 1

• Remove the four screws securing the vent assembly.
• Slide the vent assembly out and away from the door.
• Emove the four screws securing the door. Lift off the door.(Place the door in a safe location while servicing the furnace.)

 

STEP 1

There is no door on the outside of the RV, with a less door model. To access the furnace components:

• Remove the four screws securing the vent assembly, then slide the vent assembly out and away from the RV.
• Use the service access area located directly in front of the furnace on the inside of the RV.

 

STEP 3

• Disconnect the two wires from the sail switch.
• Initiate a furnace start.
• Wait for the fan to start.
• As soon as the fan starts, connect (jump) a wire across the two disconnected wires to simulate a closed switch.

NOTE: You must wait for the fan to start before jumping the sail switch.

STEP 4

• Locate the sail switch:

-Older models: behind the blower.

-Atwood models: on the fresh-air side of the motor.

-Newer models: on the blower side of the motor.

• Remove the two wires connecting the circuit board to the sail switch.
• Remove the screws holding the sail switch bracket in place.
• Remove the bracket and sail switch.
• Replace with a current series switch. Do not use a larger switch or motor and ignition issues will occur.
• Reverse the steps for re-installation.