H0121800129A Genuine Power Supply Board for Haier, Fisher & Paykel Dishwashers, Power PCB, Haier Number 0121800129A

Part H0121800129A is a genuine Haier power supply board for Haier and Fisher & Paykel dishwashers. It takes the incoming mains supply and feeds the electronics, and on many dishwashers the same board also switches the pumps, valves and heater. Haier lists a board with the same digits and no A suffix, so read the label on your old board carefully and order the one that matches.

Dishwasher dead or resetting? Signs of a power board fault

When a power supply board fails, the most common sign is a dishwasher that seems completely dead, with no lights, no beeps and no response to the buttons even though the power point is live. Other faults include a display that flickers or resets mid-program, cycles that stop at random, or parts such as the drain pump or inlet valve not responding. A burnt smell, scorch marks or a blown fuse on the board point strongly to it. Check the power point, plug and door switch first, as these can mimic a board fault.

Part details

• Genuine Haier part number H0121800129A
• Haier number 0121800129A
• Power supply board for Haier and Fisher & Paykel dishwashers
• Check the A suffix against your old board

Fitting the power supply board

Turn the dishwasher off at the wall and unplug it. If it is hard-wired, a licensed electrician needs to isolate the circuit. The board often sits low in the machine, behind the kick panel or under a cover. Take clear photos of every plug and wire before disconnecting, move them across in the same positions and refit any covers before restoring power.

Questions about this part

What is the difference between H0121800129A and H0121800129?

They share a base number but carry different suffixes, and the suffix can mean a different board or revision. Order the number printed on your old board exactly. If yours shows no letter, send your model number through the parts enquiry form so we can check.