HVACopediaCarrier · Furnace
Stored codes Recall stored status codes
What the display is showing
Both controls keep recent status codes in memory and do not lose them when 115 V or 24 V power is interrupted (amber LED boards). This mode replays them on the amber LED. The 59TP6A keeps the last 7; code 11 means no fault is stored. The two-digit codes are read as short flashes (first digit) then long flashes (second digit).
Applies to: 59TP6A and 58SB0A/58SB1A furnaces (amber status LED control)
What to do
- 59TP6A Make sure there is no thermostat signal and all blower-off delays have finished. Leave 115 V on and remove the blower door.
- 59TP6A Turn setup switch SW1-1 ON and manually hold the blower door switch closed. The control flashes up to 7 stored codes in order; the last one (the 8th) is always 11.
- 59TP6A Turn SW1-1 OFF. A steady amber LED then shows proper operation. Refit the blower door.
- 58SB0A/58SB1A With no thermostat signal and the blower-off delays finished, note the current LED state through the sight glass.
- 58SB0A/58SB1A Briefly pull the wire off the draft safeguard (DSS) switch until the LED goes out, then reconnect it. The LED then flashes the stored code 4 times; record it. If nothing is stored it flashes 11.
- 58SB0A/58SB1A Do not leave the LS or DSS wire off longer than 4 seconds, or the blower starts and the stored code is replaced by 33.
Settings for these units
Filter sizes by casing width and filter cabinet · 59TP6A
| Location | Size | Side return filter | Bottom return filter | Type |
|---|---|---|---|---|
| Furnace casing | 14-3/16 in. wide | 16 x 25 x 3/4 in. | 14 x 25 x 3/4 in. | Washable |
| Furnace casing | 17-1/2 in. wide | 16 x 25 x 3/4 in. | 16 x 25 x 3/4 in. | Washable |
| Furnace casing | 21 in. wide | 16 x 25 x 3/4 in. | 20 x 25 x 3/4 in. | Washable |
| Furnace casing | 24-1/2 in. wide | 16 x 25 x 3/4 in. | 24 x 25 x 3/4 in. | Washable |
| Filter cabinet | 16 in. high | (1) 16 x 25 x 3/4 in. or (1) 16 x 25 x 4-5/16 in. | - | Washable or media |
| Filter cabinet | 20 in. high | (1) 20 x 25 x 3/4 in. or (1) 20 x 25 x 4-5/16 in. | - | Washable or media |
| Filter cabinet | 24 in. high | (1) 24 x 25 x 3/4 in. or (1) 24 x 25 x 4-5/16 in. | - | Washable or media |
No internal filter rack in this furnace - an external filter is required.
Side-return filters can differ in size - measure the existing filter.
Minimum clearances to combustibles · 59TP6A
| Position | Clearance |
|---|---|
| Rear | 0 in. (0 mm) |
| Front (combustion air openings) | 1 in. (25 mm) |
| Front, required for service | 24 in. (610 mm) - check local code |
| All sides of supply plenum | 1 in. (25 mm) - check local code |
| Sides | 0 in. (0 mm) |
| Vent | 0 in. (0 mm) |
| Top of furnace | 1 in. (25 mm) |
Keep 1 in. from combustibles to supply duct for 36 in. horizontally from the furnace.
Do not set on carpet or combustible tile; downflow on combustible floor needs the accessory floor base unless on a matching coil casing.
- Filter sizes by casing width · 58SB0A/58SB1A
Models that show this code
22 models in 59TP6A, 58SB0A/58SB1A
Other codes on the same units
- 33 Limit circuit fault
- 34 Ignition proving failure
- 43 Low-heat pressure switch open while high-heat switch closed
- 45 Control circuitry lockout
- Component test Component self-test mode
- LED OFF No amber LED - no power to control
- LED ON Amber LED steady on
- Rapid Flash Reversed 115-V polarity (or twinning phasing)
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Source: Carrier 59TP6A installation instructions, Troubleshooting / Service and Maintenance, p.76-77; Carrier 58SB0A/58SB1A installation instructions (58SB0A-05SI), p.26 and p.31. Summarized in our own words; check the original manual for your model.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.