Heat Controller REG-243A, REG-183A service manual Troubleshooting Guide

Page 26

Troubleshooting Guide

COMPLAINT

CAUSE

REMEDY

 

 

 

 

 

Compressor will not run,

Thermostat

Check the position of knob If not at the coldest set-

but fan motor runs.

 

ting, advance the knob to this setting and restart

 

 

 

unit.

 

 

 

Check continuity of the thermostat. Replace ther-

 

 

 

mostat if circuit is open.

 

 

 

 

 

 

 

Capacitor (Discharge

Check the capacitor.

 

 

capacitor before servicing.)

Replace if not within ±10% of manufacturers rat-

 

 

 

ing. Replace if shorted, open, or damaged.

 

 

 

 

 

 

 

Compressor

Check the compressor for open circuit or ground. If

 

 

 

open or grounded, replace the compressor.

 

 

 

 

 

 

 

Overload

Check the compressor overload, if externally

 

 

 

mounted. Replace if open. (If the compressor tem-

 

 

 

perature is high, remove the overload, cool it, and

 

 

 

retest.)

 

 

 

 

 

Compressor cycles on

Voltage

Check the voltage.

overload.

 

If not within limits, call an electrician.

 

 

 

 

 

 

 

Overload

Check overload, if externally mounted.

 

 

 

Replace if open. (If the compressor temperature is

 

 

 

high, remove the overload, cool, and retest.)

 

 

 

 

 

Compressor cycles on

Fan motor

If not running, determine the cause. Replace if

overload.

 

required.

 

 

 

 

 

 

 

Condenser air flow restric-

Remove the cabinet. inspect the interior surface of

 

 

tion

the condenser; if restricted, clean carefully with a

 

 

 

vacuum cleaner (do not damage fins) or brush.

 

 

 

Clean the interior base before reassembling.

 

 

 

 

 

 

 

Condenser fins (damaged)

If condenser fins are closed over a large area on

 

 

 

the coil surface, head pressures will increase,

 

 

 

causing the compressor to overload. Straighten

 

 

 

the fins or replace the coil.

 

 

 

 

 

Compressor cycles on

Capacitor

Test capacitor.

 

 

 

overload.

Wiring

Check the terminals. If loose, repair or replace.

 

 

 

 

 

 

 

Refrigerating system

Check the system for a restriction.

 

 

 

 

Insufficient cooling or heat-

Air filter

If restricted, clean of replace.

ing

 

 

 

Exhaust damper door

Close if open.

 

 

 

 

 

 

 

Unit undersized

Determine if the unit is properly sized for the area

 

 

 

to be cooled.

 

 

 

 

Excessive noise

Blower or fan

Check the set screw or clamp. If loose or missing,

 

 

 

correct. If the blower or fan is hitting air guide,

 

 

 

rearrange the air handling parts.

 

 

 

 

 

 

 

Copper tubing

Remove the cabinet carefully and rearrange tubing

 

 

 

not to contact cabinet, compressor, shroud, and

 

 

 

barrier.

 

 

 

 

Auto air-swing fails.

Rotary switch.

Set the knob to HIGH COOL or LOW COOL while

 

 

 

rocker switch is ON.

 

 

Wiring

Check terminals. If loose, repair or replace.

 

 

Synchronous motor.

Check the synchronous motor for open circuit.

 

 

 

 

 

 

 

 

 

 

27Room Air Conditioner

Image 26
Contents +$7&21752//5,1& Table of Contents Safety Precautions InstallationThere is risk or fire or electric shock Outside Dimensions DimensionsSymbols Used in this Manual Product Specifications Items ModelsHow to Install the unit How to use the Reversible Inlet grilleWindow Requirements Window RequirementsSuggested tool Requirements Cabinet Installation Line marked window stoolWindow installation of room air conditioner is now Completed Operation VentilationDisassembly Mechanical partsAir handling parts Cover at the topElectrical parts FanCapacitor Synchronous Motor Refrigeration cycle CondenserPage Pulling Vacuum Schematic Diagram Wiring DiagramTroubleshooting Guide Piping SystemTroubleshooting Guide Unit runs but poor coolingFails to Start Room Air Conditioner Voltage Limits Complaint Cause RemedyTroubleshooting Guide +$7&21752//5,1&
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REG-183A, REG-243A specifications

The Heat Controller REG-183A and REG-243A are innovative heating solutions designed to enhance comfort and efficiency in various settings. These models represent the latest advancements in heating technology, providing effective climate control for residential and commercial spaces.

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