19.

You have an open wire or bad terminal on either the ORANGE or VIOLET wire between connectors

Ð

Ð

5

PL13 and PL3. Repair it or replace blower harness(es).

 

 

 

 

 

 

 

 

 

20.

Remove tape from door switch and turn power off at main disconnect.

Ð

Ð

21

21.

Does blower wheel rub against blower housing?

4

22

Ð

22.

Does blower wheel turn freely?

 

 

 

23.

Is blower wheel firmly mounted on motor shaft?

25

4

Ð

24.

Replace entire blower motor or blower control module attached to the blower motor. If you replace

 

 

 

the blower control module go to step 44. Always inspect failed motor for water damage. If present,

Ð

Ð

4

 

find source of water and fix. Check A-coil and/or humidifier.

 

 

 

25.

Disconnect jumper wire across R and W/W1 thermostat terminals.

Ð

Ð

26

26.

Turn power back on. Depress door switch. Use a piece of tape to hold switch closed. Wait a few

Ð

Ð

27

sec for self test before proceeding to next step.

 

 

 

 

27.

Do you have 120v between B1 and B2 on furnace control board?

28

4

Ð

28.

Do you have 120v between BLACK and WHITE power leads at blower motor MTR2?

30

29

Ð

29.

You have an open wire or bad terminal on either the BLACK or WHITE wire between furnace con-

Ð

Ð

5

trol board and blower motor MTR2.

 

 

 

 

 

Check blower ON/OFF line. To do this, connect a DC voltmeter across terminals PL3-1 RED (+)

 

 

 

30.

and PL3-5 BLUE (-), then put setup switch SW-6 for COMPONENT TEST in ON position. Does

 

 

 

voltage across RED and BLUE wires change between states as shown below?

32

31

Ð

 

·

State 1ÐOFF (-0.1 Ð 0.1 vdc)

 

 

 

 

·

State 2ÐON (9.0 Ð 10.0 vdc)

 

 

 

 

Disconnect PL3 from furnace control board and connect a DC voltmeter across terminals PL3-1 (+)

 

 

 

 

and PL3-5 (-) on furnace control board, then repeat COMPONENT TEST by turning setup switch

 

 

 

31.

SW-6 OFF and then back ON. Does voltage across PL3-1 and PL3-5 change between states as

18

16

Ð

shown below?

 

 

 

 

 

·

State 1ÐOFF (-0.1 Ð 0.1 vdc)

 

 

 

 

·

State 2ÐON (11.0 Ð 12.0 vdc)

 

 

 

32.

Connect a DC voltmeter across RED (+) and BLUE (-) wires at connector PL13 then repeat COM-

 

 

 

PONENT TEST by turning setup switch SW-6 OFF and then back ON. Do you see approximately

34

33

Ð

 

the same DC voltages across RED and BLUE wires that you saw in Step 30?

 

 

 

33.

You have an open wire or bad terminal on either the RED or BLUE wire between connectors PL13

Ð

Ð

5

and PL3. Repair it or replace blower harness(es).

 

 

 

 

34.

Put setup switch SW-6 for COMPONENT TEST in OFF position.

Ð

Ð

35

 

Check blower PW line. To do this, connect a DC voltmeter across terminals PL3-1 RED (+) and

 

 

 

 

PL3-4 YELLOW (-), then put setup switch SW-6 for COMPONENT TEST in ON position. Does volt-

 

 

 

35.

age across the RED and YELLOW wires change between states as shown below?

37

36

Ð

·

State 1ÐOFF (-0.1 Ð 0.1 vdc)

 

 

 

 

 

·

State 2ÐLOW (2.5 Ð 3.0 vdc)

 

 

 

 

·

State 3ÐHIGH (7.0 Ð 7.5 vdc)

 

 

 

 

Disconnect PL3 from furnace control board and connect a DC voltmeter across terminals PL3-1 (+)

 

 

 

 

and PL3-4 (-) on furnace control board then repeat COMPONENT TEST by turning setup switch

 

 

 

36.

SW-6 OFF and then back ON. Does voltage across PL3-1 and PL3-4 change as shown below?

18

16

Ð

·

State 1ÐOFF (-0.1 Ð 0.1 vdc)

 

 

 

 

 

·

State 2ÐLOW (3.0 Ð 4.0 vdc)

 

 

 

 

·

State 3ÐHIGH (9.0 Ð 10.0 vdc)

 

 

 

37.

Connect a DC voltmeter across RED (+) and YELLOW (-) wires at connector PL13 then repeat

 

 

 

COMPONENT TEST by turning setup switch SW-6 OFF and then back ON. Do you see approxi-

18

38

Ð

 

mately the same DC voltages across RED and YELLOW wires that you saw in Step 35?

 

 

 

38.

You have an open wire or bad terminal on either the RED or YELLOW wire between connectors

Ð

Ð

5

PL13 and PL3. Repair it or replace blower harness(es).

 

 

 

 

39.

Go to page number indicated in Index for CLEANUP AND START-UP INSTRUCTIONS. If problem

 

 

 

persists on an intermittent basis, replace blower motor. If problem still persists on an intermittent

Ð

Ð

INDEX

 

basis after replacing blower motor, contact your distributor.

 

 

 

40.

Turn power off and remove blower access panel. Depress door switch. Use a piece of tape to hold

Ð

Ð

41

switch closed. Wait a few sec for self test before proceeding to next step.

 

 

 

 

41.

Disconnect all thermostat leads from furnace control board. If blower motor is running, wait until it

Ð

Ð

42

stops.

 

 

 

 

42.

Jumper R and G thermostat terminals. Observe operation of furnace for next 30 sec.

Ð

Ð

43

 

Approximately 20 sec after energizing G thermostat terminal, does blower motor pause briefly (less

 

 

 

43.

than1/2 sec?)

3

18

Ð

Note:You can verify this pause using a clamp-on ammeter on BLACK power lead to blower

 

 

 

 

 

motor MTR2.

 

 

 

14

Page 14
Image 14
Carrier 58MVP instruction manual Motor MTR2

58MVP specifications

The Carrier 58MVP is a high-efficiency gas furnace designed for optimal performance and energy savings. This model represents Carrier's commitment to innovative engineering and advanced technology, making it a preferred choice for homeowners seeking reliable heating solutions.

One of the standout features of the 58MVP is its impressive Annual Fuel Utilization Efficiency (AFUE) rating, which can reach up to 96 percent. This high AFUE rating indicates that the furnace uses less energy to produce heat, leading to lower utility bills and a reduced carbon footprint. The furnace is equipped with a two-stage gas valve that allows it to operate on a low setting during mild weather, providing increased efficiency and comfort.

The 58MVP also features Carrier's Infinity Control system, an advanced programmable thermostat that enables homeowners to customize their heating preferences. This system allows for precise temperature control and scheduling, ensuring that the home remains at a comfortable temperature while minimizing energy consumption.

In addition to its efficiency, the 58MVP is designed with noise reduction technology, including a quiet operating blower and insulated cabinet. This reduces operational sound, allowing for a more peaceful home environment. The model's multi-speed blower motor enhances comfort by providing consistent airflow and further optimizing efficiency.

Durability is a key characteristic of the Carrier 58MVP. It has a stainless-steel heat exchanger that promotes longevity and performance. The furnace is also equipped with a galvanized steel cabinet featuring a powder-coated finish, which protects against rust and corrosion.

The 58MVP is compatible with Carrier's advanced air purification systems, optimizing indoor air quality while heating. With features designed for efficiency, comfort, and durability, the Carrier 58MVP is an exceptional choice for homeowners looking to enhance their heating systems. The combination of advanced technologies, such as the two-stage operation and Infinity Control, positions this furnace as a leader in the market, meeting the needs of today's energy-conscious consumers. Ideal for both new constructions and retrofits, the Carrier 58MVP continues to set the standard for residential heating solutions.