By Hayward Pool Products
Model # SMX306000016
Manufacturer Code HPX51100122201
Hayward® Control Board Replacement – HPX51100122201
Replaces: Summit Heat Pump Models
SUM5, HP21404T, HP21004T, HP21124T, HP21254T (HeatPro Series)
✅ Key Features
✔️ Direct replacement for original control boards on select Summit and HeatPro heat pumps
✔️ Identical functionality and layout – no rewiring or configuration changes required
✔️ Improves performance and reliability with updated circuitry
➡️ Compatibility
• Replaces original control board on the following models:
– SUM5
– HP21404T
– HP21004T
– HP21124T
– HP21254T
• For HeatPro and Summit Series units
⚠️ Replacement Note
Model HPX51100122201 is the official replacement board. Installation and operation remain unchanged from the original. Always confirm compatibility before installation.
this board is compatible with model HP21254T
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Hi, Carlos. Yes, this Control Board - SMX306000016 is compatible with the HP21254T model.
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I have a 3 year old Hayward heat pump TA 50 that has the U4 chip fried, anything that I need to check before I replace the board? Thanks
Hi, Thomas. Check the transformer to make sure it puts out 24 vac to the board. If not, that along with the board will need to be replaced.
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