White Rodgers Universal 50A55-843 and 50A65-843 Furnace Control Boards

Trane XE80 Furnace Control Boards as well as many other brands (see cross reference below)

The main difference between these two controls is that the 50A55-843 is a Universal control made for replacements in Silicon Carbide Hot Surface Ignition systems which are found in most of Trane's lower end model furnaces. Most others manufacturers use this system in their lower end units.
The 50A65-843 is a Universal control made for replacements in Silicone Nitride Hot Surface Ignition systems which are found in Trane's higher end furnace models.

Click for larger image

White Rodgers 50A55-843 Universal Control MP (L39-566)

Universal Silicon Carbide Integrated Ignition Control
White Rodgers Part # 50A55-843
Replaces all of the following:
50A55-120 Lennox 12L4201 50A55-143 50A50-209 York 031-00662 50A55-286 50A50-110 ICP 1380-686 50A55-143 50A50-241 York 031-01266000 50A55-286 50A50-111 ICP 1380-699 50A55-143 50A50-296 W/R Std. 50A50-296 50A55-286 50A50-112 ICP 1380-699 50A55-143 50A50-286 W/R Std. 50A50-286 50A55-286 50A50-113 W/R Std. 50A50-113 50A55-143 50A55-474 Trane D330934P01 50A55-438 50A50-142 W/R Std. 50A50-143 50A55-143 50A55-571 Trane D330927P01 50A55-438 50A50-143 ICP 1010806 50A55-143 50A50-405 Trane D340035P01 50A55-438 50A50-205 Amana 10207701 50A55-285 50A50-406 Trane D340354P01 50A55-438 50A50-206 Amana 10207702 50A55-285 50A50-408 W/R Std. 50A50-408 50A55-438 50A50-207 Amana 10207703 50A55-285 50A50-471 Trane D340774P01 50A55-438 50A50-288 Amana 10207710 50A55-285 50A50-473 Trane D330930P01 50A55-438 50A50-295 W/R Std. 50A50-295 50A55-285 50A50-474 Trane D330934P01 50A55-438 50A50-285 W/R Std. 50A50-285 50A55-285 50A50-571 Trane D330927P01 50A55-438 50A55-241 York 031-01266-000 50A55-286 50A50-438 W/R Std. 50A50-38 50A55-438

$169.95

Add L39-566 Cart

Click for larger image

White Rodgers 50A65-843 Control MP (L39-567)

Universal Silicon Nitride Integrated Ignition Control
White Rodgers Part # 50A65-843
Type Number 50A65-120 50A65-143 50A65-288 50A65-474 50A65-843
Pre-Purge 15 30 0 0 30
Trial for Ignition 4 4 4 4 4
Ignition Activation Period 4 4 4 4 4
Retries 4 times 2 times 2 times 2 times 2 times
Valve Sequence Period 20 12 12 12 12
Interpurge 15 60 60 60 60
Post-Purge 5 5 15 5 15
Lockout Time 250 300 300 300 300
Heat Delay-to-Fan-On 45 15, 30, 45, 60 30 45 30, 45
HeatDelay-to-Fan-Off 60, 90, 120, 180 60, 90, 120, 180 60, 90, 120, 180 60, 90, 120, 180 60, 90, 120, 180
Cool Delay-to-Fan-On 0 0 5 2 5
Cool Delay-to-Fan-Off 0 90 45 0, 80 45, 90
Air Cleaner terminal Yes Yes Yes Yes Yes
Humidifier terminal Yes Yes Yes Yes Yes
Initial Warmup 20 20 20 20 20
Twin N/A N/A N/A Yes N/A
(All times are in seconds)
Universal 50A65-843 control will replace all 50A65-XXX models.

$169.95

Add L39-567 Cart

PLEASE NOTE: U.P.S. DOES NOT OPERATE ON THE WEEKEND, SO IF YOU ORDER A NEXT DAY AIR PART ON FRIDAY, YOU WILL NOT GET IT ON THE WEEKEND! WE CAN'T BE RESPONSIBLE FOR THE U.P.S. DELIVERY SCHEDULES. IF YOU NEED A PART FOR THE WEEKEND, PLEASE ORDER BY THURSDAY BEFORE NOON MOUNTAIN TIME.

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