Carrier 58CTS Service And Maintenance Procedures Manual Download

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58CTS1SM

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 4

Tab 6a 8a

PC 101

Catalog No. 535-80008

Printed in U.S.A.

Form 58CTS-1SM

Pg 12

11-00

Replaces: New

Summary of Contents for 58CTS

Page 1: ...urnace and in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING CAUTION and NOTE These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in severe personal injury or death WARNING signifies a hazard which could result in personal injury or death CAUTION is used to identify unsafe p...

Page 2: ...ce must be performed on this equipment Consult your local dealer about proper frequency of maintenance and the availability of a maintenance contract Never store anything on near or in contact with the furnace such as 1 Spray or aerosol cans rags brooms dust mops vacuum cleaners or other cleaning tools 2 Soap powders bleaches waxes or other cleaning com pounds plastic or plastic containers gasolin...

Page 3: ...n the furnace that pass in from of the blower door a Disconnect vent connector from furnace vent elbow b Disconnect and remove short piece of vent pipe from within furnace 4 Remove 2 screws from blower door and remove blower door 5 Disconnect blower leads from furnace control Notice wire color and location for reassembly All other factory wires can be left connected but field thermostat connection...

Page 4: ...control No component operation can occur Caution must be taken when manually closing this switch for service purposes Failure to follow this warning could result in electrical shock personal injury or death NOTE If thermostat terminals are jumpered at the time blower access door switch is closed blower will run for 90 sec before beginning a heating or cooling cycle 18 If furnace is operating prope...

Page 5: ...ssembly 8 Clean flame sensor with fine steel wool 9 Reinstall burner assembly Center burners in cell openings 9 Remove old sealant from cell panel and inducer backing plate flange and apply new sealant to flange and reinstall on cell panel making sure all screws are secure NOTE A releasing agent such as PAM cooking spray or equiva lent must not contain corn or canola oil aromatic or halogenated hy...

Page 6: ...or an explanation of status codes refer to service label located on blower access door or Fig 9 and the troubleshooting guide at the end of this procedure The control stores 5 status codes for a period of 72 hrs The stored status codes will NOT be erased from the control memory if 115 or 24 v power is interrupted 1 To retrieve status codes proceed with the following NOTE NO thermostat signal may b...

Page 7: ...onds 15 Blower off delay gas heating selections are 90 120 150 180 seconds cooling or heat pump 90 seconds or 5 seconds when DHUM is on LEGEND ACR AIR CONDITIONING RELAY SPST N O ACRDJ AIR CONDITIONING RELAY DISABLE JUMPER BHI LOR BLOWER MOTOR SPEED CHANGE RELAY SPDT BHT CLR BLOWER MOTOR SPEED CHANGE RELAY SPDT BLWR BLOWER MOTOR RELAY SPST N O BLWM BLOWER MOTOR PERMANENT SPLIT CAPACITOR BVSS BLOCK...

Page 8: ... operates at COOL speed for 10 sec then turns off 7 Inducer motor goes to low speed Items 1 through 7 above will assist in furnace troubleshooting since all components are functionally operated except the gas valve This procedure is also referred to as Component Test Sequence f Check LED status g If LED status indicates proper operation RELEASE BLOWER ACCESS DOOR SWITCH replace blower access door ...

Page 9: ...zed Inducer will run until fault is cleared Check for Leaky gas valve Stuck open gas valve 23 PRESSURE SWITCH DID NOT OPEN Check for Obstructed pressure tubing Pressure switch stuck closed 24 SECONDARY VOLTAGE FUSE IS OPEN Check for Short circuit in secondary voltage 24VAC wiring 31 HIGH HEAT PRESSURE SWITCH OR RELAY DID NOT CLOSE OR REOPENED Check for Control relay may be defective Refer to 32 32...

Page 10: ... speed and run for the entire component test then shift to low speed for 10 seconds The HSI blower motor low heat speed blower motor high heat speed and blower motor cool speed will run for 10 15 sec each Gas valve and humidifier will not be turned on Determine status code The status code is a 2 digit number with the first digit determined by the number of short flashes and the second digit by the...

Page 11: ...OPEN Check for Disconnected or obstructed pressure tubing Defective pressure switch 24 SECONDARY VOLTAGE FUSE IS OPEN Check for Short in low voltage wiring including thermostat leads shorting to ductwork or furnace cabinet Disconnect thermostat leads to isolate short circuit 32 LOW HEAT PRESSURE SWITCH DID NOT CLOSE OR REOPENED If open longer than 5 minutes inducer shuts off for 15 minutes before ...

Page 12: ...46231 58CTS1SM Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations Book 1 4 Tab 6a 8a PC 101 Catalog No 535 80008 Printed in U S A Form 58CTS 1SM Pg 12 11 00 Replaces New ...

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Carrier 58CTS, Service And Maintenance Procedures Manual

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