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Fisher & Paykel·Dishwasherhigh severity
Fisher & Paykel Dishwasher Error Code A3
Heater relay stuck on the control module
Common Causes
- 1Welded or stuck heater relay contacts on the drawer control module
- 2Control module fault leaving the heater energised
A welded heater relay can keep the element powered when it should be off — stop using the drawer until the control module is replaced.
Step-by-Step Troubleshooting
- 1
Stop using the drawer — a stuck heater relay can leave the element powered continuously
- 2
Confirm the fault is the module relay, not the element, by checking whether heat stays on when it should be off
- 3
A3 indicates a control-module relay fault, so the module is replaced as a sealed unit
- 4
Individual relays are not serviced in the field on the DishDrawer control module
- 5
After replacement, run a cycle and confirm the heater cycles off on schedule
Pro Diagnostic Tip
A3 is a stuck-ON heater relay — the contacts have welded closed, so the element stays powered. The drawer control module is replaced as a unit; the relay is not repaired on its own.
You Might Also Notice
- •Drawer overheating
- •Tub uncomfortably hot to touch
- •Cycle faulting out
- •A faint burning smell
Parts, Cost & Difficulty
Repair Difficulty
Professional OnlyEstimated Repair Cost
$250–$500
Parts + labor. Free diagnosis with repair.
Parts That May Need Replacement
Drawer control module
Do You Have the Right Tools?
Bearing puller set ($120), drum spider wrench ($85), multimeter ($85), and diagnostic software. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
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Error code A3 is a high-severity issue that can cause further damage to your dishwasher if left unresolved. A licensed technician can diagnose and fix it the same day.
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Frequently Asked Questions
What does Fisher & Paykel error code A3 mean?
Fisher & Paykel error code A3 indicates: Heater relay stuck on the control module. This is a high-severity issue affecting your dishwasher.
How do I fix Fisher & Paykel error code A3?
Stop using the drawer — a stuck heater relay can leave the element powered continuously Then, Confirm the fault is the module relay, not the element, by checking whether heat stays on when it should be off Then, A3 indicates a control-module relay fault, so the module is replaced as a sealed unit There are 2 more steps — see the full troubleshooting guide above. This repair typically requires professional tools and expertise.
How do I know if my dishwasher has error A3?
Besides the error code on the display, common signs include: Drawer overheating; Tub uncomfortably hot to touch; Cycle faulting out. If you notice any of these symptoms, check your dishwasher's display panel for error code A3.
How much does it cost to fix Fisher & Paykel A3?
Repair costs for Fisher & Paykel A3 typically range from $250 to $500 depending on the specific cause and parts needed. EasyBear offers free diagnosis when you proceed with the repair. Call (415) 795-7300 for a same-day appointment.
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