Manual Emerson 50A55

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  • Emerson 50A55 - page 1

    INTEGRA TED FURNA CE CONTROL MODULE TROUBLESHOO TING GUIDE 50A55 INTEGRA TED FURNACE CONTR OL MODULE QualiedServiceman’s T roubleshootingGuide TROUBLESHOO TING PROCEDURE Ifthelightonthemoduleisoncontinuously ,thefaultislikelytobeinternaltothe module.T omakesure,interrup ...

  • Emerson 50A55 - page 2

    Place thermostat fan s witch in the ON position. Return fa n switch to AU TO position. Indoor Blo we r Check Does indoor bl ow er r un at HEA T speed? YES YES NO NO YES NO YES NO YES NO Indoor blo wer fault. Repair or replace . Check operation. Is 24V present at control terminals G & C? Is 120V present at control terminals COOL & CIR NEUTRA ...

  • Emerson 50A55 - page 3

    INTEGRA TED FURNA CE CONTROL MODULE TROUBLESHOO TING GUIDE Place thermostat system switch in cooling mode and fa n switch in AU TO position. Lo we r temperature selection lev er to call for a cooling cycle . R & Y contacts close. Return ther mostat to desired setting. With door switch closed, jumper control terminals R & Y. Cooling Cycle Ch ...

  • Emerson 50A55 - page 4

    Inducer Draft Motor and Pressure Switch Check Is induced draft motor energized? YES YES NO Is diagnostic LED flashing 3 times? Call for heat. Thermostat contacts R & W close. Jumper pressure switch. Disconnect electric po we r at fuse or circuit breaker . Is pressure switch welded closed? Correct blocked or incorrectly installed vent. Check ope ...

  • Emerson 50A55 - page 5

    Main Burner Ignition Check. Inducer ON. Does ignitor wa rm up and glow? YES YES NO NO Does bu r ner ignite? Tu rn power OFF to furnace. Unplug ignitor from wire harness . Connect voltmeter across ignitor wiring harness leads from control. Energize system. Tu rn manual knob to OFF position. Connect manometer to outlet pressure tap . Tu rn knob to ON ...

  • Emerson 50A55 - page 6

    Flame Sensor Check Does main bu r ner remain lit? YES NO YES NO Is bl ow er at heat speed within 1 minute of bu r ner ignition? Does ignitor remain energized with flame present? De-energize system. Disconnect 12-pin connector . Connect ohmmeter from flame sensor pin FP to bu r ner GROUND . Replace sensor . Energize system. Check operation. NO Repla ...

Manufacturer Emerson Category Furnace

Documents that we receive from a manufacturer of a Emerson 50A55 can be divided into several groups. They are, among others:
- Emerson technical drawings
- 50A55 manuals
- Emerson product data sheets
- information booklets
- or energy labels Emerson 50A55
All of them are important, but the most important information from the point of view of use of the device are in the user manual Emerson 50A55.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Emerson 50A55, service manual, brief instructions and user manuals Emerson 50A55. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Emerson 50A55.

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A complete manual for the device Emerson 50A55, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Emerson 50A55 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Emerson 50A55.

A complete Emerson manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Emerson 50A55 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Emerson 50A55, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Emerson 50A55, that we can find in the current document
3. Tips how to use the basic functions of the device Emerson 50A55 - which should help us in our first steps of using Emerson 50A55
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Emerson 50A55
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Emerson 50A55 in a specific country, if it was not possible to solve the problem on our own.

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