
PCBDM133S – DEFROST CONTROL BOARD
10226 Plano Rd, Suite 104, Dallas TX 75238
Questions? Call or text (214) 340-9421
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
If your heat pump’s outdoor unit is icing up and not defrosting properly, the defrost control board may have failed. This board controls the defrost cycle timing and works with the defrost sensor to keep your outdoor coil clear of ice.
Specs: OEM Goodman defrost control board
Replaces: B18-135, GDM1301, PCBDM133, PCBDM133S, PCBDM160, PCBDM161V007S
Fits: Goodman: GSZ140421KF, GSZB403010AB; fits other Goodman and Amana heat pumps
Need help? See our Furnace Not Heating Guide.
In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.
Cross-reference numbers
This part replaces the following OEM and aftermarket numbers:
- B18-135
- GDM1301
- GSZ140361KC
- GSZ140421KF
- GSZB403010AB
- PCBDM133S
- PCBDM160
- PCBDM161V007S
Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.




