11

11NO PREVIOUS FAULT - Faults are erased after 48 hrs or whenever power (115V or 24V) is interrupted. Run system through a heating or cooling cycle to recheck system.

12BLOWER ON AFTER POWER UP (115V OR 24V) - Normal operation. Blower will run for 90 sec when furnace power is interrupted during a call for heat and R-W closes.

13LIMIT OR FLAME ROLLOUT SWITCH LOCKOUT - Limit switch was open longer than

3 minutes. Auto-reset will occur after 3 hrs. Flame rollout switch requires manual reset.

See No. 33

14IGNITION LOCKOUT - System failed to ignite gas and prove flame in 4 attempts. Control will auto-reset in 3 hrs.

See No. 34

21GAS HEATING LOCKOUT - Turn off power and wait 5 minutes to retry.

Check for:

•Stuck closed gas valve relay on control.

•Miswire or short to gas valve wire.

22ABNORMAL FLAME PROVING SIGNAL - Flame was sensed while gas valve was de-energized. Inducer will run until fault is cleared.

Check for:

•Stuck open gas valve solenoid or leak.

•Defective control board.

23PRESSURE SWITCH WILL NOT OPEN - Check for:

•Disconnected or obstructed pressure tubing.

•Defective pressure switch.

24LOW-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.

31PRESSURE, DRAFT SAFEGUARD (WHEN USED), OR AUXILIARY LIMIT (WHEN USED) SWITCH WILL NOT CLOSE OR REOPEN - If open longer than 5 minutes, inducer shuts off for 15 minutes before retry.

Check for:

•Proper vent sizing or pitch or sag.

•Vent restrictions or high winds.

•Defective inducer motor.

•Low-line voltage (115v).

•Motor start capacitor.

•Low inlet gas pressure.

•Defective pressure switch or connections. If it opens after trial for igniton period, blower will come on for 90 sec recycle delay.

•Inadequate combustion air (for draft safeguard and auxiliary limit switches only).

33LIMIT OR FLAME ROLLOUT SWITCH IS OPEN - If limit switch is open longer than 3 minutes, code changes to No. 13. Check for:

•Blower motor failure.

•Motor start capacitor.

•Open flame rollout switch, manual reset.

•Inadequate combustion air supply (flame rollout switch only).

•Dirty filter.

•Defective limit switch or connections.

•Loose blower wheel.

34IGNITION PROVING FAILURE - If flame is not sensed during the trial for ignition period, the control will repeat the ignition sequence 3 more times before going into lockout, No. 14.

If flame signal is lost after trial for ignition period, blower will come on for 90 sec recycle delay. Check for the following items first before proceding to the next step.

•Gas valve turned off.

•Manual shut-off valve.

•Green wire must be connected to furnace sheet metal.

To determine whether the problem is in the gas valve, igniter, or flame sensor, the system can be operated in the component test mode to check out the ignitor. First, remove the R thermostat connection from the control board and initiate the component test sequence. Does the ignitor glow orange/white hot by the end of the 17 sec warm-up period?

YES

NO

Unplug ignitor harness from control

 

center and inititate another

 

component test sequence and check

NO

for 115v between pins 1 and 2 on

 

the board. Was there 115v present

 

for the 17 sec period?

 

 

 

 

 

YES

 

 

 

 

Check for continuity in the harness

 

and ignitor. Replace defective

 

component.

 

 

 

 

 

 

 

Reconnect the R thermostat lead

 

and set thermostat to call for heat.

NO

Connect voltmeter across gas valve

 

connections. Does gas valve

 

receive 24v?

 

 

 

 

 

YES

 

 

 

NO

Does gas valve open and allow gas

to flow?

 

 

 

 

 

YES

 

 

 

NO

Do main burners ignite?

 

 

 

 

 

YES

 

 

 

NO

Do main burners stay on?

 

 

 

 

 

YES

 

 

 

 

Allow blower to come on and repeat

 

test to check for intermittent

 

operation.

 

 

 

 

Replace control board.

Check connections. If OK, replace control board.

Check that all gas valves are turned on. Replace valve.

Check for:

•Inadequate flame carryover on rough ignition.

•Low inlet gas pressure.

Repeat call for heat and check flame sensor current during trial for ignition NO period. Is the dc microamperes

below 0.5?

YES

Check connections and retry. If current is near typical value and control will not stay on, replace control board.

Clean flame sensor with fine sandpaper and recheck current. Current is nominally 4.0 to 6.0 microamps.

Is current near typical value?

NO

 

 

 

 

 

YES

 

 

 

 

 

 

Replace electrode.

 

 

 

 

 

 

 

NO

 

 

 

Will main burner ignite and stay on?

 

 

 

 

 

YES

 

 

 

 

 

 

Replace control board.

 

 

 

 

 

 

 

 

 

 

 

Fixed.

 

 

 

 

 

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Carrier 58PAV, 58RAV instruction manual Pressure Switch will not Open Check for
Page 10 Page 12

58RAV, 58PAV specifications

The Carrier 58RAV and 58PAV are two exceptional models in Carrier's lineup of gas furnaces, renowned for their efficiency, reliability, and innovative features. Designed to provide superior heating performance, these models boast several advancements that cater to modern residential needs.

One of the defining features of the Carrier 58RAV and 58PAV is their exceptional energy efficiency. Both models achieve high Annual Fuel Utilization Efficiency (AFUE) ratings, making them ideal choices for homeowners looking to reduce energy consumption and lower utility bills. The 58RAV offers a variable-speed blower motor that adjusts airflow according to the temperature demand, providing a more consistent heating experience and enhancing overall comfort.

In terms of technology, the 58RAV and 58PAV are equipped with Carrier's Infinity Control technology. This intelligent system allows for precise temperature control throughout the home, ensuring that every room is evenly heated. Homeowners can easily manage their heating system via a smartphone application, making it convenient to adjust settings from anywhere.

Another notable characteristic of these models is their quiet operation. The 58RAV and 58PAV are engineered with sound-reducing features that minimize noise levels. This is especially beneficial for installations near living spaces, as it contributes to a more peaceful indoor environment.

Safety and durability are also key considerations in the design of the 58RAV and 58PAV. Both models come equipped with a robust heat exchanger constructed from high-quality aluminized steel, which enhances longevity and reliability. Furthermore, an integrated safety system ensures that the furnaces operate safely, preventing concerns related to gas leaks and overheating.

Installation flexibility is a significant advantage of both models. They are designed to fit into various spaces, with options for different venting configurations, making them suitable for a wide range of home layouts.

In conclusion, the Carrier 58RAV and 58PAV gas furnaces represent a perfect blend of efficiency, technology, and reliability. Their advanced features, such as variable-speed motors, smart controls, and whisper-quiet operation, make them ideal solutions for homeowners seeking optimal heating performance while maintaining energy efficiency. The commitment to safety and durability further solidifies Carrier's reputation as a leader in the heating industry, ensuring that these models will provide warmth and comfort for years to come.
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