Dometic / Atwood 36160 Furnace Low Air Flow Switch (Sail Switch)

Dometic / Atwood 36160 Furnace Low Air Flow Switch (Sail Switch)

Genuine OEM Replacement

Part Number: 36160
Product Type: Low Air Flow Switch / Sail Switch

Serial Number Requirement

This part is compatible only with furnaces that have Serial Numbers AFTER 72498929.

Always verify your furnace serial number before ordering.

Product Overview

The Dometic / Atwood 36160 Sail Switch (Low Air Flow Switch) is a genuine OEM airflow safety device designed for select Atwood AF and DF series furnaces.

The sail switch verifies adequate blower airflow before allowing the burner to ignite. If airflow is insufficient due to blocked ducting, debris, weak blower motor, or restricted vents, the switch prevents ignition to protect the furnace from unsafe combustion conditions.

If your furnace blower runs but the burner does not ignite, or ignition is intermittent, a faulty sail switch is one of the most common causes. Replacing it with OEM Part 36160 restores proper ignition sequencing and safe furnace operation.

Manufactured to original equipment specifications, this switch ensures correct calibration and dependable fitment.

Compatible Furnace Models

Dometic Atwood AF Series

(Serial Numbers AFTER 72498929)

AFSAD12111
AFSAD12121
AFSAD12131
AFSAD12141

AFSD12111
AFSD12121
AFSD12131
AFSD12141

AFSD16111
AFSD16121
AFSD16131
AFSD16141

AFSD20111
AFSD20121
AFSD20131
AFSD20141

AFSDA12121

AFMD16111
AFMD16121
AFMD16131
AFMD16141
AFMD16151

AFMD20111
AFMD20121
AFMD20131
AFMD20141
AFMD20151

Dometic Atwood DFSD & DFSAD Series

(Serial Numbers AFTER 72498929)

DFSAD12111
DFSAD12121
DFSAD12131
DFSAD12141

DFSD12111
DFSD12121
DFSD12131
DFSD12141
DFSD12151

DFSD16111
DFSD16121
DFSD16131
DFSD16141
DFSD16151

DFSD20111
DFSD20121
DFSD20131
DFSD20141
DFSD20151

Important: Furnaces manufactured before Serial Number 72498929 use a different sail switch design and are not compatible with Part 36160.

When Should You Replace the Sail Switch?

You may need to replace the sail switch if:

• The blower runs but the burner will not ignite
• Furnace attempts ignition but shuts down
• Heating is intermittent
• Airflow fault condition is indicated
• The switch paddle is stuck, bent, or contaminated

Sail switches are one of the most common failure points in Dometic/Atwood furnaces.

Product Specifications

Manufacturer: Dometic / Atwood
Part Number: 36160
Component: Sail Switch (Low Air Flow Switch)
Application: Select AF, DFSD & DFSAD Series
Serial Requirement: After 72498929
Includes: Sail switch assembly

Frequently Asked Questions (FAQ)

Q: What does a sail switch do?
A: It confirms sufficient airflow from the blower before allowing the burner to ignite.

Q: Why does my furnace blower run but not ignite?
A: A failed sail switch is a very common cause of ignition failure when blower operation is normal.

Q: Why does the serial number matter?
A: Units built before Serial Number 72498929 use a different switch design and require a different part number.

Q: Is this an OEM part?
A: Yes. 36160 is a genuine Dometic / Atwood replacement component.