Loading... Please wait...

White Rodgers Heat Pump Defrost Control 90-621

White Rodgers Heat Pump Defrost Control 90-621


CBX05 508-U4
Price: $49.99

Product Description

You are looking at a BRAND NEW-IN-THE-BOX UNIVERSAL Heat pump defrost Control Board/Circuit Board!! See below for a list of board part numbers that this board replaces!! If you have any questions, please contact me! Thanks and good luck!

Board Numbers (Brands and Manufactuer #s) that are replaced by this Circuit Board include:

Amana: C64301-1, C6431001

Artesian: 10321-00

Arcoaire: 32312-00, 3232140

Coleman: 3030A374

Carrier: 621

Goodman: B12260-06

Essex: 621-1 to 621-10, 621-110, 621-111, 621-310-110

Heil Quaker: HQ1052757

Intertherm: 6208800

Honeywell: ST74A1004, ST74A1020, ST74A1038

ICP: 1052757

Lennox: 33G9501

Rheem: 47-21776-01

Steveco: 90-621

Snyder Gen: 1395-329

Therm-o-Disc: 26E-10

Robertshaw: TD-10, DT2-1000

White Rodgers: 90-621

OEM Heat Pump Defrost Control Board (Goodman, Amana)


Heat Pump Defrost Timer

Ultra low cost

Pin-for-pin compatible with OEM type 621 controls
Simple time and temperature control
Must have external relays for fan, reversing valve and auxiliary heat
High installed base


Voltage: 18 to 30 VAC
Frequency: 50/60 Hz
Power Consumption: 1 watt max.

Type: Relay
Form: SPST, N.O.
Rating: 1 amp

Time Delays
Defrost Time: Fixed 10 minutes + 5%
Interval Time between defrosts: Pin-selectable 30/60/90 min
Power on Reset Time: 500ms
Test Time: Short across test terminals reduces test time 256x

Replaces Part Numbers:

B1266006 ICM-300 B12660-06 621-8 6218 C64301-1 C643011 P284-2590 P2842590 C64310-1 C6431001 621-5 6215 CARB1266006 CARICM300

This is a Brand New Circuit Board!! It DOES WORK! IT DOES NOT COME WITH ANY WARRANTIES!! Bid at your own risk. Unfortunately, due to the possibility of someone wiring it wrong/having another problem in their system, I cannot offer any warranty. Please do not leave me negative feedback if something happens to your New CBoard.

All sales are final and there are no refunds- Thanks for looking and good luck!! Check out my selection other NEW PARTS in my store!

Complete HVAC Supply


Powered by
The free listing tool. List your items fast and easy and manage your active items.

Find Similar Products by Category

Product Reviews

This product hasn't received any reviews yet. Be the first to review this product!

Write your own product review

Recent Updates

  • Share Positive Press

    Share positive press. Did your store receive a great review or write-up from …

Click the button below to add the White Rodgers Heat Pump Defrost Control 90-621 to your wish list.