Vigtige sikkerhedsoplysninger
ADVARSEL: Installation and servicing of this furnace control board must be performed by a qualified service technician. Failure to follow these instructions could result in property damage, personal injury, or death.
- Disconnect all power to the furnace before installing or servicing this control board.
- Kontroller, at alle ledningsforbindelser er sikre og korrekte i henhold til ovnproducentens specifikationer.
- Omgå ikke nogen sikkerhedsanordninger.
- Sørg for korrekt jording.
Produkt overview
The Amana 50A51-215 is an OEM replacement two-stage integrated furnace control board designed for specific Amana furnace models. It manages the ignition sequence, monitors safety limits, and controls the furnace's operational cycles.

Figur 1: Amana 50A51-215 Furnace Control Board. This image displays the front view of the control board, showing various terminals, connectors, LED indicators, and labels for components like "Flame Current Sense" and "Fault Recall."
Nøglekomponenter
- Terminalblokke: For connecting power, thermostat wires (Y1, Y2, W, R, G, C), and other furnace components.
- LED-indikatorer: Provide diagnostic feedback through flash patterns and colors.
- Flame Current Sense: Monitors the presence of a flame during operation.
- Fault Recall Button: Used to retrieve stored fault codes.
- Erase Fault Button: Used to clear stored fault codes.
Opsætning og installation
This section provides general guidelines. Always refer to the specific furnace manufacturer's service manual for detailed installation instructions.
- Strømafbrydelse: Sluk for al strøm til ovnen på hovedservicepanelet.
- Adgangskontroltavle: Find og åbn ovnens adgangspanel for at afdække det eksisterende kontrolkort.
- Dokumentledningsføring: Carefully label all wires connected to the old control board before disconnecting them. Take photographs for reference if necessary.
- Fjern gammelt bræt: Disconnect all wires and mounting screws, then remove the old control board.
- Installer nyt kort: Mount the new Amana 50A51-215 control board in the same location using the existing mounting hardware.
- Tilslut ledninger: Reconnect all wires to the new board, ensuring each wire is attached to its corresponding terminal as documented in step 3. Pay close attention to the "CAUTION 120V" and "NEUTRALS" connections, as well as thermostat wires (Y1, Y2, W, R, G, C).
- Bekræft forbindelser: Double-check all wiring for correctness and secure connections.
- Gendan strøm: Close the furnace access panel and restore electrical power to the furnace.
- Test drift: Initiate a heating cycle to verify proper furnace operation.
Betjeningsvejledning
Once installed, the control board operates automatically in conjunction with your thermostat to manage the furnace's heating cycles.
LED-indikator
The integrated LED on the control board provides status and diagnostic information. During normal operation, the LED will typically flash slowly. Refer to the Troubleshooting section for specific flash patterns and their meanings.
Fejl tilbagekaldelse
To recall the last stored fault code, press and hold the FEJLFINDING button for approximately 2 seconds. The LED will then display the fault code.
Erase Fault
To erase all stored fault codes, press and hold the ERASE FAULT knap i cirka 5 sekunder.
Opretholdelse
The Amana 50A51-215 control board itself requires no routine maintenance. However, regular maintenance of the entire furnace system is crucial for its longevity and efficient operation.
- Ensure furnace filters are replaced or cleaned regularly according to the furnace manufacturer's recommendations.
- Have the furnace inspected and serviced annually by a qualified technician.
- Hold området omkring ovnen fri for forhindringer og brandbare materialer.
Fejlfinding
The LED indicator on the control board provides diagnostic codes to assist in troubleshooting. Observe the flash pattern and color, then refer to the table below.
| LED Flash Pattern / Color | Tilstand |
|---|---|
| 1 rød blink | Flame Sense Current When No Flame Should Be Present |
| 2 røde blink | Pressure Switch Stuck Closed | Inducer Error |
| 3 røde blink | 1. Stage Pressure Switch Stuck Open | Inducer Error |
| 4 røde blink | Åbn grænseafbryder |
| 5 røde blink | Open Rollout | Open Fuse Detect |
| 6 røde blink | Pressure Switch Cycle Lockout |
| 7 røde blink | Tændingslås |
| 8 røde blink | External Lockout (Recycled) |
| 9 røde blink | Grounding or Reversed Polarity |
| 10 røde blink | Call for Heat with No Call for Heat |
| 11 røde blink | Limit Switch Open - Motor Failure |
| 12 røde blink | Tændingsfejl |
| 13 røde blink | Invalid Line Voltage, Micro, and Frequency Check |
| 14 røde blink | Blower Error, Incorrect Idle Proving |
| 15 røde blink | 2. Stage Pressure Switch Stuck Open | Inducer Error |
| 1 gul blink | Normal Operation with Call for First Stage Varme |
| 2 gule blink | Normal Operation with Call for Second Stage Varme |
| 3 gule blink | Ring efter varme |
| 4 gule blink | 1. Stage Heat with No C-Call, Y1 Present with No C-Call |
| 5 gule blink | Low Flame Sense Current |
| Rapid Yellow Flashes | Call for Cool, Humidity |
Hvis fejlfindingstrinene ikke løser problemet, skal du kontakte en kvalificeret HVAC-tekniker.
Specifikationer
- Model: 50A51-215
- Type: OEM Replacement Furnace 2 Stage Control Circuit Board
- Fabrikant: Amana
- Produktdimensioner: 9 x 7 x 10 tommer
Garanti og support
For specific warranty information, please refer to the documentation provided with your purchase or contact Amana customer support.
For technical assistance or service, it is recommended to contact a certified HVAC professional.





