Install Instructions

ManualsBrandsWhite Rodgers ManualsGas and Oil Burner AccessoriesUniversal Flame Sensor

FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFUL-

LY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD

CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.

PARTS INCLUDED

• 1 – 790-843A1 Flame Sensor

• 30” lead wire with ¼” quick-connect terminals

• 2 – ½” Sheet Metal Mounting Screws

• 1 – Protective Sleeve

• 1 – 3/16” quick-connect terminal

• 1 – Installation Instructions

DESCRIPTION

SPECIFICATIONS

ELECTRICAL RATINGS:

Insulation Resistance from Rod to Bracket:

Must be 500 megaohms at minimum

Ceramic Material:

Alumina 95% or better

Bracket Material:

Zinc plated steel or stainless steel

Agency:

CSA Certiﬁed

NOTE: Internal wires to ignitor connections to withstand

operational temperature of 482 °F (250 °C).

PART NO. 37-7820001

2025

790-843A1

Universal Flame Sensor

INSTALLATION INSTRUCTIONS

The 790-843A1 is an aftermarket universal ﬂame

sensor replacement for many different applications.

Flame sensors in furnaces, ovens, water heaters,

boilers and other applications can be replaced with the

790-843A1.

CAUTION

Shock Hazard

• Always turn off electric power

before working on any appliance.

• Ensure proper connection to all

wires.

Explosion Hazard

• Shut off gas to appliance before

installation, and do not reconnect

until installation is complete.

Fire Hazard

• Ensure that components do not

come into direct contact with water

(spray, dripping water or rain)

• Improper and dangerous

operation can result from wiring

errors.

• Ensure that wiring is routed

securely, and away from any ﬂame.

This high temperature and durable ﬂame rod can be

bent, cut or a combination of the two without losing any

performance capability when the protective sleeve is

placed over the rod during modiﬁcation. For detailed

instructions, please see pages 2, 3 and 4.

emerson.com/white-rodgers

Table of Contents Page

Cross Reference Table &

Flame Rod Bend Action .............................. 2 & 3

Flame Rod Cutting Instructions ............... 2

Flame Rod Bending Instructions ............. 3

Flame Rod Angle Guide .............................. 4

Summary of content (4 pages)

PAGE 1
790-843A1 Universal Flame Sensor INSTALLATION INSTRUCTIONS FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE PERSONAL INJURY AND/OR PROPERTY DAMAGE.
PAGE 2
Table 1: Cross Reference Table, Bend Angles and Modification Instructions NO CHANGE REQUIRED CUTTING OF ROD REQUIRED Part Number OEM Bend ° Mod. Part Number OEM Bend ° Mod.
PAGE 3
Table 1: Cross Reference Table, Bend Angles and Modification Instructions BENDING OF ROD REQUIRED Part Number OEM 64356 Middleby 90 69854 Middleby 1172827, 6920*, 9161* 1184322* 1190383* BENDING AND CUTTING REQUIRED Bend ° Mod. Part Number OEM Bend ° Mod.
PAGE 4
Place 790-843A1 on flat surface with flange rotation matching old flame sensor being replaced. Place fulcrum on corner edge of surface, secure ceramic to surface and apply downward pressure on tip of rod. Co rne rE dg e Flange could be positioned in a variety of ways, need to check old flame sensor being replaced to match flange rotation before bending 790-843A1. of Su rfa ce **Make certain protective sleeve is placed over flame rod before bending or cutting rod** Fig.