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DDORUU 50A55-3797 Furnace Control Board – Replacement for White-Rodgers 50A55 Series & Trane CNT Models
Overview The DDORUU 50A55-3797 Furnace Control Board is built as a practical, drop‑in replacement for aging White-Rodgers units and compatible...
Vendor:
DDORUU
- $130.14
- $130.14
- Unit price
- per
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$130.14
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Description
xOverview
The DDORUU 50A55-3797 Furnace Control Board is built as a practical, drop‑in replacement for aging White-Rodgers units and compatible Trane controls. It centers on a microprocessor that continually monitors the gas burner, inducer, and blower to support smooth furnace operation. With standard 25 VAC control signals and clearly rated relays, this board is designed to integrate with a range of common furnace configurations, helping to minimize downtime when a primary control fails.
Beyond basic operation, the board incorporates diagnostic transparency. If a fault occurs, an LED code appears to guide troubleshooting. If a fault is internal to the control, the LED may stay off, signaling that the unit should be replaced rather than repaired on site. This approach supports clear decision-making for maintenance windows and service planning.
Key compatibility and electrical specs
- Input Voltage: 25 VAC 50/60 Hz
- Max input current at 25 VAC: 0.45 amp
- Valve Relay load: 1.5 amp at 25 VAC, 50/60 Hz, 0.6 PF
- Ignitor Relay load: 6.0 amp at 120 VAC (resistive)
- Inducer Relay load: 2.2 FLA - 3.5 LRA at 120 VAC
- Circulator Relay load: 14.5 FLA - 25.0 LRA at 120 VAC
What this replacement offers
- Compatibility with White-Rodgers 50A55-3797 and related 50A55 models, plus Trane CNT02891, CNT03797, CNT02789 integrated furnace controls
- Compact, reliable board design intended for straightforward installation in standard furnace enclosures
- Self-diagnostic LED that supports quicker fault identification during service calls
- Non-field-repairable construction; when a fault is detected internal to the control, replacement is recommended
Installation and care
Designed as a direct replacement, this board aims to fit the mounting pattern and electrical interfaces of the models listed above. Ensure power is disconnected before handling and consult your furnace manual for specific wiring guidance. Regularly inspect connectors and wiring harnesses for signs of wear, corrosion, or loose connections to help maintain reliable operation.
Why choose DDORUU
- Broad compatibility with legacy White-Rodgers and Trane control configurations
- Clear fault signaling to streamline troubleshooting
- Efficient replacement path that minimizes downtime
- Stable electrical ratings suitable for common gas furnace subsystems
FAQ
Q: What is the DDORUU 50A55-3797 Furnace Control Board compatible with?
A: Compatible with White-Rodgers 50A55-3797 and related models, plus Trane CNT02891, CNT03797, CNT02789 integrated controls.
Q: Does the board provide fault indication?
A: Yes, it includes an LED indicator for fault codes to aid troubleshooting; if the fault is internal, replacement is advised.
Shipping & Return
xShipping (Canada)
We offer free shipping on all products across Canada. Orders are typically prepared within 1–2 business days. After dispatch, delivery usually takes 3–5 business days. For remote or hard-to-reach areas, delivery may take 5–7 business days.
We may ship with Asendia, UniUni, Purolator, FedEx, or Canada Post depending on your address, package size, and the item’s handling requirements. P.O. Boxes are accepted where the selected carrier supports them.
Returns (30 Days)
We accept returns on most items within 30 days of delivery. Items must be returned in the condition you received them (new, unused, and with original packaging where applicable). If you receive the wrong or defective item, we’ll make it right.
To start a return, please email us at handyskook@gmail.com with your order number and a brief description of the issue. We’ll reply within 1 business day with the next steps.
Refunds
Once your return is received and inspected, we’ll process your refund to the original payment method. Processing times can vary by payment provider, but most refunds are completed within 5–10 business days after approval.
Order Tracking
When your order ships, you’ll receive a confirmation email with tracking details (when available). If you need help locating your tracking information, contact us at handyskook@gmail.com.
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